25 Jun
2020
25 Jun
'20
4:23 a.m.
Phil,
When I look through the logs you attached, on the Opus receiver it
claims it is receiving stereo audio:
2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx -
INFO - Receiving stereo audio transmission
I also see in the transmission it claims it is sending mono:
2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx -
INFO - Started mono audio transmission
Is it possible that you are actually sending stereo and the transmission
notice claiming to be mono is just incorrect?
Also, I know it takes up more cpu cycles, but have you tried running
your audio through Jack on the transmission end?
Lorne
> -------- Original Message --------
> Subject: [openob-users] OB and Behringer UCA202
> From: "Phil Biehl" <fylbeall(a)gmail.com>
> Date: Wed, June 24, 2020 5:07 pm
> To: "'James Harrison'" <james(a)talkunafraid.co.uk>uk>,
> <openob-users(a)lists.talkunafraid.co.uk>
>
>
> Hello All,
>
> Late last year I spent a lot of time trying to get OB working on a pair of Raspberry
Pi3s. I communicated with you all on the list to try to get by the “My Mono Problem” I was
having and eventually gave up. I'm back now trying again to get this to work for a
community radio station (KBOO) backup STL that’s really needed. My configuration is:
Raspberry Pi3B+, Behringer UCA202, OB V4.0.3 running under the current version of
Raspberry Pi OS (32-bit) Lite, Kernel Version 4.19. This time I have had a bit more
success in that I have been able to get a stereo link established by running the
transmitter in PCM mode. However, when I try to use OPUS encoding the link is established
but it is again in mono.
>
>
>
> How can I get a stereo link using OPUS encoding? Help please!
>
>
>
> Thanks,
> Phil
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e pcm
>
> 2020-06-24 13:47:48,561 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:47:48,567 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:47:48,568 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:47:48,570 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:47:48,571 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to pcm
>
> 2020-06-24 13:47:48,572 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:47:48,574 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:47:48,576 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:47:48,577 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:47:48,579 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:47:48,581 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:47:48,582 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:47:48,584 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:47:48,585 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,587 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:47:48,588 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,588 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:47:48,590 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:47:48,593 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,593 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,594 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,606 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:47:48,621 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,622 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,623 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:47:48,628 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:47:48,631 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,632 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,643 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:47:48,661 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,663 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,671 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,674 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,674 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:47:48,677 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:47:48,692 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:47:48,794 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:47:48,796 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 13:47:49,717 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
stereo audio transmission
>
> 2020-06-24 13:47:50,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.10 R -6.90
>
> 2020-06-24 13:47:51,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.17 R -0.68
>
> 2020-06-24 13:47:52,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.71 R -0.64
>
> 2020-06-24 13:47:53,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.75 R -0.79
>
>
>
>
>
>
>
> Here's terminal output for PCM Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:48:06,456 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:48:06,461 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:48:06,461 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:48:06,463 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,464 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:48:06,465 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,466 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:48:06,466 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:48:06,468 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,468 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,469 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:48:06,470 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:48:06,472 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,479 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,481 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:48:06,487 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:48:06,503 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:48:06,505 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,506 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,509 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:48:06,511 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,512 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,521 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:48:06,556 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:48:06,558 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,559 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:48:08,359 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:48:09,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.41 R -1.36
>
> 2020-06-24 15:48:10,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.94 R 0.00
>
> 2020-06-24 15:48:11,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.10 R -0.00
>
> 2020-06-24 15:48:12,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.95 R -0.51
>
> 2020-06-24 15:48:13,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.77 R -0.21
>
>
>
>
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e opus
>
> 2020-06-24 13:51:50,054 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:51:50,060 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:51:50,061 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:51:50,062 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:51:50,064 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to opus
>
> 2020-06-24 13:51:50,065 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:51:50,067 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:51:50,069 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:51:50,071 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:51:50,072 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:51:50,074 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:51:50,075 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:51:50,077 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:51:50,078 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:51:50,081 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,082 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:51:50,083 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:51:50,085 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:51:50,087 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,098 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:51:50,114 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,115 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,117 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:51:50,123 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:51:50,125 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 13:51:50,137 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:bitrate, got 128
>
> 2020-06-24 13:51:50,140 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_framesize, got 20
>
> 2020-06-24 13:51:50,144 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_complexity, got 9
>
> 2020-06-24 13:51:50,146 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_fec, got False
>
> 2020-06-24 13:51:50,148 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_loss_expectation, got 0
>
> 2020-06-24 13:51:50,150 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_dtx, got False
>
> 2020-06-24 13:51:50,157 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:51:50,177 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,179 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,181 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,183 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,184 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:51:50,186 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:51:50,205 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:51:50,307 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:51:50,309 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)2919919452,
timestamp-offset=(uint)3754439394, seqnum-offset=(uint)23680
>
> 2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
mono audio transmission
>
> 2020-06-24 13:51:52,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-3.87
>
> 2020-06-24 13:51:53,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-6.10
>
> 2020-06-24 13:51:54,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.67
>
> 2020-06-24 13:51:55,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.15
>
> 2020-06-24 13:51:56,230 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-5.27
>
>
>
>
>
>
>
> Here's terminal output for Opus Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:52:43,330 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:52:43,334 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:52:43,336 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,337 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:52:43,337 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:52:43,341 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:52:43,342 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:52:43,344 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,351 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,353 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:52:43,359 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:52:43,375 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:52:43,377 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 15:52:43,387 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:52:43,388 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,389 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,398 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:52:43,433 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:52:43,435 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,436 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:52:46,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.49 R -3.49
>
> 2020-06-24 15:52:47,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.70 R -3.70
>
> 2020-06-24 15:52:48,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.84 R -3.84
>
> 2020-06-24 15:52:49,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.13 R -3.13
>
> 2020-06-24 15:52:50,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.88 R -1.88<hr>_______________________________________________
> openob-users mailing list -- openob-users(a)lists.talkunafraid.co.uk
> To unsubscribe send an email to openob-users-leave(a)lists.talkunafraid.co.uk
25 Jun
25 Jun
2:42 p.m.
New subject: OB and Behringer UCA202
Hi Lorne,
Thanks for getting back to me.
When I use opus, the transmitter is sending mono. The receiver is decoding stereo but the
audio is truly mono as removing the left input to the transmitter causes both channels to
drop. Also, there is only one channel shown in the level displays. This is shown in the
first two logs. In the third and fourth logs, using pcm, the transmitter is showing a
stereo channel and the receiver is decoding two channels. This is also seen in the two
channels reported by both ends in the level displays.
I do not want to increase complexity and decrease cpu overhead by adding Jack just to make
this link work correctly. This will be a critical STL link and it has to be robust. The
same applies to pcm, it requires too high of a bitrate and will drop packets when the
network gets congested. Opus is essential to reduce the rate to keep packet loss as low as
possible.
I have noticed that when I plug one of the Behringer UCA202s into my windows 10 PC that it
records in mono as well. Yet I can get a stereo link with OB on the Pis.
I’m wondering if it’s an interaction between opus in OB and the codec? Is there a way to
get this working?
Phil
> On Jun 24, 2020, at 8:24 PM, Lorne Tyndale <ltyndale(a)tyndaleweb.com> wrote:
>
> Phil,
>
> When I look through the logs you attached, on the Opus receiver it
> claims it is receiving stereo audio:
>
> 2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx -
> INFO - Receiving stereo audio transmission
>
> I also see in the transmission it claims it is sending mono:
>
> 2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx -
> INFO - Started mono audio transmission
>
> Is it possible that you are actually sending stereo and the transmission
> notice claiming to be mono is just incorrect?
>
> Also, I know it takes up more cpu cycles, but have you tried running
> your audio through Jack on the transmission end?
>
> Lorne
>
>
>> -------- Original Message --------
>> Subject: [openob-users] OB and Behringer UCA202
>> From: "Phil Biehl" <fylbeall(a)gmail.com>
>> Date: Wed, June 24, 2020 5:07 pm
>> To: "'James Harrison'" <james(a)talkunafraid.co.uk>uk>,
>> <openob-users(a)lists.talkunafraid.co.uk>
>>
>>
>> Hello All,
>>
>> Late last year I spent a lot of time trying to get OB working on a pair of
Raspberry Pi3s. I communicated with you all on the list to try to get by the “My Mono
Problem” I was having and eventually gave up. I'm back now trying again to get this to
work for a community radio station (KBOO) backup STL that’s really needed. My
configuration is: Raspberry Pi3B+, Behringer UCA202, OB V4.0.3 running under the current
version of Raspberry Pi OS (32-bit) Lite, Kernel Version 4.19. This time I have had a bit
more success in that I have been able to get a stereo link established by running the
transmitter in PCM mode. However, when I try to use OPUS encoding the link is established
but it is again in mono.
>>
>>
>>
>> How can I get a stereo link using OPUS encoding? Help please!
>>
>>
>>
>> Thanks,
>> Phil
>>
>>
>>
>> Here's terminal output for PCM Transmitter side:
>>
>> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162
-d hw:1 -a alsa -r 48000 -j 1000 -e pcm
>>
>> 2020-06-24 13:47:48,561 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>>
>> 2020-06-24 13:47:48,567 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>>
>> 2020-06-24 13:47:48,568 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>>
>> 2020-06-24 13:47:48,570 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>>
>> 2020-06-24 13:47:48,571 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to pcm
>>
>> 2020-06-24 13:47:48,572 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>>
>> 2020-06-24 13:47:48,574 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>>
>> 2020-06-24 13:47:48,576 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>>
>> 2020-06-24 13:47:48,577 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>>
>> 2020-06-24 13:47:48,579 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>>
>> 2020-06-24 13:47:48,581 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>>
>> 2020-06-24 13:47:48,582 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>>
>> 2020-06-24 13:47:48,584 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>>
>> 2020-06-24 13:47:48,585 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>>
>> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set mode to tx
>>
>> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set type to alsa
>>
>> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set samplerate to 48000
>>
>> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 13:47:48,587 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set alsa_device to hw:1
>>
>> 2020-06-24 13:47:48,588 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 13:47:48,588 - openob.node.test-tx-node - INFO - Link test-link
initial setup start on test-tx-node
>>
>> 2020-06-24 13:47:48,590 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched mode, got tx
>>
>> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.link.test-link - INFO -
Starting up transmitter
>>
>> 2020-06-24 13:47:48,593 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 13:47:48,593 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched mode, got tx
>>
>> 2020-06-24 13:47:48,594 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>>
>> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>>
>> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 13:47:48,606 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched alsa_device, got hw:1
>>
>> 2020-06-24 13:47:48,621 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched samplerate, got 48000
>>
>> 2020-06-24 13:47:48,622 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched samplerate, got 48000
>>
>> 2020-06-24 13:47:48,623 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>>
>> 2020-06-24 13:47:48,628 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>>
>> 2020-06-24 13:47:48,631 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>>
>> 2020-06-24 13:47:48,632 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>>
>> 2020-06-24 13:47:48,643 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>>
>> 2020-06-24 13:47:48,661 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>>
>> 2020-06-24 13:47:48,663 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 13:47:48,671 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>>
>> 2020-06-24 13:47:48,674 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 13:47:48,674 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>>
>> 2020-06-24 13:47:48,677 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>>
>> 2020-06-24 13:47:48,692 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>>
>> 2020-06-24 13:47:48,794 - openob.node.test-tx-node.link.test-link - DEBUG - Got
caps from transmitter, setting config
>>
>> 2020-06-24 13:47:48,796 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>>
>> 2020-06-24 13:47:49,717 - openob.node.test-tx-node.link.test-link.tx - INFO -
Started stereo audio transmission
>>
>> 2020-06-24 13:47:50,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.10 R -6.90
>>
>> 2020-06-24 13:47:51,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.17 R -0.68
>>
>> 2020-06-24 13:47:52,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.71 R -0.64
>>
>> 2020-06-24 13:47:53,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.75 R -0.79
>>
>>
>>
>>
>>
>>
>>
>> Here's terminal output for PCM Receiver side:
>>
>> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a
alsa
>>
>> 2020-06-24 15:48:06,456 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>>
>> 2020-06-24 15:48:06,461 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>>
>> 2020-06-24 15:48:06,461 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Set mode to rx
>>
>> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Set type to alsa
>>
>> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Set alsa_device to hw:1
>>
>> 2020-06-24 15:48:06,463 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 15:48:06,464 - openob.node.test-rx-node - INFO - Link test-link
initial setup start on test-rx-node
>>
>> 2020-06-24 15:48:06,465 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched mode, got rx
>>
>> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched mode, got rx
>>
>> 2020-06-24 15:48:06,466 - openob.node.test-rx-node.link.test-link - INFO -
Waiting for transmitter capabilities...
>>
>> 2020-06-24 15:48:06,466 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>>
>> 2020-06-24 15:48:06,467 - openob.link.test-link.config - DEBUG - Fetched
(blocking) caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>>
>> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Got
caps from transmitter
>>
>> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO -
Starting up receiver
>>
>> 2020-06-24 15:48:06,468 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 15:48:06,468 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched mode, got rx
>>
>> 2020-06-24 15:48:06,469 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>>
>> 2020-06-24 15:48:06,470 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>>
>> 2020-06-24 15:48:06,472 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>>
>> 2020-06-24 15:48:06,479 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 15:48:06,481 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>>
>> 2020-06-24 15:48:06,487 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>>
>> 2020-06-24 15:48:06,503 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>>
>> 2020-06-24 15:48:06,505 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>>
>> 2020-06-24 15:48:06,506 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>>
>> 2020-06-24 15:48:06,509 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>>
>> 2020-06-24 15:48:06,511 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 15:48:06,512 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 15:48:06,521 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched alsa_device, got hw:1
>>
>> 2020-06-24 15:48:06,556 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>>
>> 2020-06-24 15:48:06,558 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 15:48:06,559 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>>
>> 2020-06-24 15:48:08,359 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>>
>> 2020-06-24 15:48:09,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.41 R -1.36
>>
>> 2020-06-24 15:48:10,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.94 R 0.00
>>
>> 2020-06-24 15:48:11,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.10 R -0.00
>>
>> 2020-06-24 15:48:12,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.95 R -0.51
>>
>> 2020-06-24 15:48:13,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.77 R -0.21
>>
>>
>>
>>
>>
>>
>>
>> Here's terminal output for PCM Transmitter side:
>>
>> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162
-d hw:1 -a alsa -r 48000 -j 1000 -e opus
>>
>> 2020-06-24 13:51:50,054 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>>
>> 2020-06-24 13:51:50,060 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>>
>> 2020-06-24 13:51:50,061 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>>
>> 2020-06-24 13:51:50,062 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>>
>> 2020-06-24 13:51:50,064 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to opus
>>
>> 2020-06-24 13:51:50,065 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>>
>> 2020-06-24 13:51:50,067 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>>
>> 2020-06-24 13:51:50,069 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>>
>> 2020-06-24 13:51:50,071 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>>
>> 2020-06-24 13:51:50,072 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>>
>> 2020-06-24 13:51:50,074 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>>
>> 2020-06-24 13:51:50,075 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>>
>> 2020-06-24 13:51:50,077 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>>
>> 2020-06-24 13:51:50,078 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>>
>> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set mode to tx
>>
>> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set type to alsa
>>
>> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set samplerate to 48000
>>
>> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Set alsa_device to hw:1
>>
>> 2020-06-24 13:51:50,081 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 13:51:50,082 - openob.node.test-tx-node - INFO - Link test-link
initial setup start on test-tx-node
>>
>> 2020-06-24 13:51:50,083 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched mode, got tx
>>
>> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.link.test-link - INFO -
Starting up transmitter
>>
>> 2020-06-24 13:51:50,085 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched mode, got tx
>>
>> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>>
>> 2020-06-24 13:51:50,087 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>>
>> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 13:51:50,098 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched alsa_device, got hw:1
>>
>> 2020-06-24 13:51:50,114 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched samplerate, got 48000
>>
>> 2020-06-24 13:51:50,115 - openob.node.test-tx-node.audio_interface.default -
DEBUG - Fetched samplerate, got 48000
>>
>> 2020-06-24 13:51:50,117 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>>
>> 2020-06-24 13:51:50,123 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>>
>> 2020-06-24 13:51:50,125 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>>
>> 2020-06-24 13:51:50,137 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:bitrate, got 128
>>
>> 2020-06-24 13:51:50,140 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_framesize, got 20
>>
>> 2020-06-24 13:51:50,144 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_complexity, got 9
>>
>> 2020-06-24 13:51:50,146 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_fec, got False
>>
>> 2020-06-24 13:51:50,148 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_loss_expectation, got 0
>>
>> 2020-06-24 13:51:50,150 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_dtx, got False
>>
>> 2020-06-24 13:51:50,157 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>>
>> 2020-06-24 13:51:50,177 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>>
>> 2020-06-24 13:51:50,179 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 13:51:50,181 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>>
>> 2020-06-24 13:51:50,183 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 13:51:50,184 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>>
>> 2020-06-24 13:51:50,186 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>>
>> 2020-06-24 13:51:50,205 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>>
>> 2020-06-24 13:51:50,307 - openob.node.test-tx-node.link.test-link - DEBUG - Got
caps from transmitter, setting config
>>
>> 2020-06-24 13:51:50,309 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)2919919452,
timestamp-offset=(uint)3754439394, seqnum-offset=(uint)23680
>>
>> 2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx - INFO -
Started mono audio transmission
>>
>> 2020-06-24 13:51:52,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Level: -3.87
>>
>> 2020-06-24 13:51:53,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Level: -6.10
>>
>> 2020-06-24 13:51:54,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Level: -2.67
>>
>> 2020-06-24 13:51:55,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Level: -2.15
>>
>> 2020-06-24 13:51:56,230 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Level: -5.27
>>
>>
>>
>>
>>
>>
>>
>> Here's terminal output for Opus Receiver side:
>>
>> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a
alsa
>>
>> 2020-06-24 15:52:43,330 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>>
>> 2020-06-24 15:52:43,334 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>>
>> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Set mode to rx
>>
>> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Set type to alsa
>>
>> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Set alsa_device to hw:1
>>
>> 2020-06-24 15:52:43,336 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 15:52:43,337 - openob.node.test-rx-node - INFO - Link test-link
initial setup start on test-rx-node
>>
>> 2020-06-24 15:52:43,337 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched mode, got rx
>>
>> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched mode, got rx
>>
>> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.link.test-link - INFO -
Waiting for transmitter capabilities...
>>
>> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>>
>> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched
(blocking) caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>>
>> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Got
caps from transmitter
>>
>> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO -
Starting up receiver
>>
>> 2020-06-24 15:52:43,341 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>>
>> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched mode, got rx
>>
>> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>>
>> 2020-06-24 15:52:43,342 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>>
>> 2020-06-24 15:52:43,344 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>>
>> 2020-06-24 15:52:43,351 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 15:52:43,353 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>>
>> 2020-06-24 15:52:43,359 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>>
>> 2020-06-24 15:52:43,375 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>>
>> 2020-06-24 15:52:43,377 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>>
>> 2020-06-24 15:52:43,387 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>>
>> 2020-06-24 15:52:43,388 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 15:52:43,389 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched type, got alsa
>>
>> 2020-06-24 15:52:43,398 - openob.node.test-rx-node.audio_interface.default -
DEBUG - Fetched alsa_device, got hw:1
>>
>> 2020-06-24 15:52:43,433 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>>
>> 2020-06-24 15:52:43,435 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>>
>> 2020-06-24 15:52:43,436 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>>
>> 2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>>
>> 2020-06-24 15:52:46,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.49 R -3.49
>>
>> 2020-06-24 15:52:47,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.70 R -3.70
>>
>> 2020-06-24 15:52:48,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.84 R -3.84
>>
>> 2020-06-24 15:52:49,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.13 R -3.13
>>
>> 2020-06-24 15:52:50,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.88 R -1.88<hr>_______________________________________________
>> openob-users mailing list -- openob-users(a)lists.talkunafraid.co.uk
>> To unsubscribe send an email to openob-users-leave(a)lists.talkunafraid.co.uk
26 Jun
26 Jun
2:43 a.m.
New subject: OB and Behringer UCA202
Phil
I have used the Behringer USB devices and have found a similar issue. I would recommend
the use of the Audio Injector sound card for the Raspberry Pi on the Tx end and the PiFi
DAC+ on the receiver end of the STL. When I set up the link I have found it necessary to
specify the codec, bit rate and the hardware device when invoking Open OB at the transmit
end.
There is a Balanced output version of the HiFI Berry DAC and it does have a nice metal
case as well. I have not used this particular DAC but from all reports it looks pretty
good and the solid case will be a plus with Balanced outputs.
Unfortunately there is no case for the Audio Injector card. I have used the audio
injector stereo sound card with input and output level controls on the card as well as the
audio injector zero card as well. Both work very well but you can use a balanced input
pre-amplifier and adjust the level accordingly. You will still need to set the audio
inputs using the Alsa Mixer.
Regards
Terry O’Connor
On 25 Jun 2020, at 11:42 pm, Phil Biehl
<fylbeall(a)gmail.com> wrote:
Hi Lorne,
Thanks for getting back to me.
When I use opus, the transmitter is sending mono. The receiver is decoding stereo but the
audio is truly mono as removing the left input to the transmitter causes both channels to
drop. Also, there is only one channel shown in the level displays. This is shown in the
first two logs. In the third and fourth logs, using pcm, the transmitter is showing a
stereo channel and the receiver is decoding two channels. This is also seen in the two
channels reported by both ends in the level displays.
I do not want to increase complexity and decrease cpu overhead by adding Jack just to
make this link work correctly. This will be a critical STL link and it has to be robust.
The same applies to pcm, it requires too high of a bitrate and will drop packets when the
network gets congested. Opus is essential to reduce the rate to keep packet loss as low as
possible.
I have noticed that when I plug one of the Behringer UCA202s into my windows 10 PC that
it records in mono as well. Yet I can get a stereo link with OB on the Pis.
I’m wondering if it’s an interaction between opus in OB and the codec? Is there a way to
get this working?
Phil
On Jun 24, 2020, at 8:24 PM, Lorne Tyndale
<ltyndale(a)tyndaleweb.com> wrote:
Phil,
When I look through the logs you attached, on the Opus receiver it
claims it is receiving stereo audio:
2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx -
INFO - Receiving stereo audio transmission
I also see in the transmission it claims it is sending mono:
2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx -
INFO - Started mono audio transmission
Is it possible that you are actually sending stereo and the transmission
notice claiming to be mono is just incorrect?
Also, I know it takes up more cpu cycles, but have you tried running
your audio through Jack on the transmission end?
Lorne
> -------- Original Message --------
> Subject: [openob-users] OB and Behringer UCA202
> From: "Phil Biehl" <fylbeall(a)gmail.com>
> Date: Wed, June 24, 2020 5:07 pm
> To: "'James Harrison'" <james(a)talkunafraid.co.uk>uk>,
> <openob-users(a)lists.talkunafraid.co.uk>
>
>
> Hello All,
>
> Late last year I spent a lot of time trying to get OB working on a pair of Raspberry
Pi3s. I communicated with you all on the list to try to get by the “My Mono Problem” I was
having and eventually gave up. I'm back now trying again to get this to work for a
community radio station (KBOO) backup STL that’s really needed. My configuration is:
Raspberry Pi3B+, Behringer UCA202, OB V4.0.3 running under the current version of
Raspberry Pi OS (32-bit) Lite, Kernel Version 4.19. This time I have had a bit more
success in that I have been able to get a stereo link established by running the
transmitter in PCM mode. However, when I try to use OPUS encoding the link is established
but it is again in mono.
>
>
>
> How can I get a stereo link using OPUS encoding? Help please!
>
>
>
> Thanks,
> Phil
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e pcm
>
> 2020-06-24 13:47:48,561 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:47:48,567 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:47:48,568 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:47:48,570 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:47:48,571 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to pcm
>
> 2020-06-24 13:47:48,572 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:47:48,574 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:47:48,576 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:47:48,577 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:47:48,579 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:47:48,581 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:47:48,582 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:47:48,584 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:47:48,585 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,587 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:47:48,588 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,588 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:47:48,590 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:47:48,593 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,593 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,594 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,606 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:47:48,621 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,622 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,623 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:47:48,628 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:47:48,631 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,632 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,643 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:47:48,661 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,663 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,671 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,674 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,674 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:47:48,677 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:47:48,692 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:47:48,794 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:47:48,796 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 13:47:49,717 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
stereo audio transmission
>
> 2020-06-24 13:47:50,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.10 R -6.90
>
> 2020-06-24 13:47:51,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.17 R -0.68
>
> 2020-06-24 13:47:52,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.71 R -0.64
>
> 2020-06-24 13:47:53,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.75 R -0.79
>
>
>
>
>
>
>
> Here's terminal output for PCM Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:48:06,456 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:48:06,461 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:48:06,461 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:48:06,463 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,464 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:48:06,465 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,466 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:48:06,466 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:48:06,468 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,468 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,469 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:48:06,470 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:48:06,472 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,479 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,481 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:48:06,487 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:48:06,503 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:48:06,505 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,506 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,509 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:48:06,511 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,512 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,521 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:48:06,556 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:48:06,558 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,559 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:48:08,359 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:48:09,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.41 R -1.36
>
> 2020-06-24 15:48:10,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.94 R 0.00
>
> 2020-06-24 15:48:11,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.10 R -0.00
>
> 2020-06-24 15:48:12,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.95 R -0.51
>
> 2020-06-24 15:48:13,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.77 R -0.21
>
>
>
>
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e opus
>
> 2020-06-24 13:51:50,054 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:51:50,060 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:51:50,061 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:51:50,062 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:51:50,064 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to opus
>
> 2020-06-24 13:51:50,065 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:51:50,067 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:51:50,069 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:51:50,071 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:51:50,072 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:51:50,074 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:51:50,075 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:51:50,077 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:51:50,078 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:51:50,081 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,082 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:51:50,083 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:51:50,085 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:51:50,087 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,098 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:51:50,114 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,115 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,117 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:51:50,123 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:51:50,125 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 13:51:50,137 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:bitrate, got 128
>
> 2020-06-24 13:51:50,140 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_framesize, got 20
>
> 2020-06-24 13:51:50,144 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_complexity, got 9
>
> 2020-06-24 13:51:50,146 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_fec, got False
>
> 2020-06-24 13:51:50,148 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_loss_expectation, got 0
>
> 2020-06-24 13:51:50,150 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_dtx, got False
>
> 2020-06-24 13:51:50,157 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:51:50,177 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,179 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,181 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,183 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,184 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:51:50,186 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:51:50,205 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:51:50,307 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:51:50,309 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)2919919452,
timestamp-offset=(uint)3754439394, seqnum-offset=(uint)23680
>
> 2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
mono audio transmission
>
> 2020-06-24 13:51:52,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-3.87
>
> 2020-06-24 13:51:53,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-6.10
>
> 2020-06-24 13:51:54,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.67
>
> 2020-06-24 13:51:55,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.15
>
> 2020-06-24 13:51:56,230 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-5.27
>
>
>
>
>
>
>
> Here's terminal output for Opus Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:52:43,330 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:52:43,334 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:52:43,336 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,337 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:52:43,337 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:52:43,341 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:52:43,342 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:52:43,344 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,351 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,353 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:52:43,359 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:52:43,375 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:52:43,377 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 15:52:43,387 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:52:43,388 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,389 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,398 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:52:43,433 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:52:43,435 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,436 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:52:46,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.49 R -3.49
>
> 2020-06-24 15:52:47,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.70 R -3.70
>
> 2020-06-24 15:52:48,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.84 R -3.84
>
> 2020-06-24 15:52:49,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.13 R -3.13
>
> 2020-06-24 15:52:50,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.88 R -1.88<hr>_______________________________________________
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27 Jun
27 Jun
4:48 a.m.
New subject: OB and Behringer UCA202
Terry,
Thanks for the suggestions. I may have to abandon the Behringer codecs altogether because
of this problem. It's so close! Ultimately I will probably have to use S/PDIF input
and output devices as I will need both to convert to AES. The HifiBerry devices seem to
fit the bill for that.
Having said that I would prefer to make the Behringers work as it is lowest cost solution
I've found.
Thanks again,
Phil
-----Original Message-----
From: Terry O'Connor [mailto:toconnorau@gmail.com]
Sent: Thursday, June 25, 2020 6:44 PM
To: Phil Biehl
Cc: Lorne Tyndale; James Harrison; openob-users(a)lists.talkunafraid.co.uk
Subject: Re: [openob-users] Re: OB and Behringer UCA202
Phil
I have used the Behringer USB devices and have found a similar issue. I would recommend
the use of the Audio Injector sound card for the Raspberry Pi on the Tx end and the PiFi
DAC+ on the receiver end of the STL. When I set up the link I have found it necessary to
specify the codec, bit rate and the hardware device when invoking Open OB at the transmit
end.
There is a Balanced output version of the HiFI Berry DAC and it does have a nice metal
case as well. I have not used this particular DAC but from all reports it looks pretty
good and the solid case will be a plus with Balanced outputs.
Unfortunately there is no case for the Audio Injector card. I have used the audio
injector stereo sound card with input and output level controls on the card as well as the
audio injector zero card as well. Both work very well but you can use a balanced input
pre-amplifier and adjust the level accordingly. You will still need to set the audio
inputs using the Alsa Mixer.
Regards
Terry O’Connor
On 25 Jun 2020, at 11:42 pm, Phil Biehl
<fylbeall(a)gmail.com> wrote:
Hi Lorne,
Thanks for getting back to me.
When I use opus, the transmitter is sending mono. The receiver is decoding stereo but the
audio is truly mono as removing the left input to the transmitter causes both channels to
drop. Also, there is only one channel shown in the level displays. This is shown in the
first two logs. In the third and fourth logs, using pcm, the transmitter is showing a
stereo channel and the receiver is decoding two channels. This is also seen in the two
channels reported by both ends in the level displays.
I do not want to increase complexity and decrease cpu overhead by adding Jack just to
make this link work correctly. This will be a critical STL link and it has to be robust.
The same applies to pcm, it requires too high of a bitrate and will drop packets when the
network gets congested. Opus is essential to reduce the rate to keep packet loss as low as
possible.
I have noticed that when I plug one of the Behringer UCA202s into my windows 10 PC that
it records in mono as well. Yet I can get a stereo link with OB on the Pis.
I’m wondering if it’s an interaction between opus in OB and the codec? Is there a way to
get this working?
Phil
On Jun 24, 2020, at 8:24 PM, Lorne Tyndale
<ltyndale(a)tyndaleweb.com> wrote:
Phil,
When I look through the logs you attached, on the Opus receiver it
claims it is receiving stereo audio:
2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx -
INFO - Receiving stereo audio transmission
I also see in the transmission it claims it is sending mono:
2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx -
INFO - Started mono audio transmission
Is it possible that you are actually sending stereo and the transmission
notice claiming to be mono is just incorrect?
Also, I know it takes up more cpu cycles, but have you tried running
your audio through Jack on the transmission end?
Lorne
> -------- Original Message --------
> Subject: [openob-users] OB and Behringer UCA202
> From: "Phil Biehl" <fylbeall(a)gmail.com>
> Date: Wed, June 24, 2020 5:07 pm
> To: "'James Harrison'" <james(a)talkunafraid.co.uk>uk>,
> <openob-users(a)lists.talkunafraid.co.uk>
>
>
> Hello All,
>
> Late last year I spent a lot of time trying to get OB working on a pair of Raspberry
Pi3s. I communicated with you all on the list to try to get by the “My Mono Problem” I was
having and eventually gave up. I'm back now trying again to get this to work for a
community radio station (KBOO) backup STL that’s really needed. My configuration is:
Raspberry Pi3B+, Behringer UCA202, OB V4.0.3 running under the current version of
Raspberry Pi OS (32-bit) Lite, Kernel Version 4.19. This time I have had a bit more
success in that I have been able to get a stereo link established by running the
transmitter in PCM mode. However, when I try to use OPUS encoding the link is established
but it is again in mono.
>
>
>
> How can I get a stereo link using OPUS encoding? Help please!
>
>
>
> Thanks,
> Phil
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e pcm
>
> 2020-06-24 13:47:48,561 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:47:48,567 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:47:48,568 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:47:48,570 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:47:48,571 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to pcm
>
> 2020-06-24 13:47:48,572 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:47:48,574 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:47:48,576 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:47:48,577 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:47:48,579 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:47:48,581 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:47:48,582 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:47:48,584 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:47:48,585 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,587 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:47:48,588 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,588 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:47:48,590 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:47:48,593 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,593 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,594 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,606 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:47:48,621 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,622 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,623 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:47:48,628 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:47:48,631 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,632 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,643 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:47:48,661 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,663 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,671 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,674 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,674 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:47:48,677 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:47:48,692 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:47:48,794 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:47:48,796 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 13:47:49,717 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
stereo audio transmission
>
> 2020-06-24 13:47:50,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.10 R -6.90
>
> 2020-06-24 13:47:51,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.17 R -0.68
>
> 2020-06-24 13:47:52,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.71 R -0.64
>
> 2020-06-24 13:47:53,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.75 R -0.79
>
>
>
>
>
>
>
> Here's terminal output for PCM Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:48:06,456 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:48:06,461 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:48:06,461 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:48:06,463 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,464 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:48:06,465 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,466 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:48:06,466 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:48:06,468 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,468 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,469 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:48:06,470 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:48:06,472 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,479 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,481 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:48:06,487 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:48:06,503 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:48:06,505 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,506 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,509 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:48:06,511 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,512 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,521 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:48:06,556 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:48:06,558 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,559 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:48:08,359 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:48:09,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.41 R -1.36
>
> 2020-06-24 15:48:10,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.94 R 0.00
>
> 2020-06-24 15:48:11,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.10 R -0.00
>
> 2020-06-24 15:48:12,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.95 R -0.51
>
> 2020-06-24 15:48:13,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.77 R -0.21
>
>
>
>
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e opus
>
> 2020-06-24 13:51:50,054 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:51:50,060 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:51:50,061 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:51:50,062 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:51:50,064 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to opus
>
> 2020-06-24 13:51:50,065 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:51:50,067 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:51:50,069 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:51:50,071 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:51:50,072 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:51:50,074 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:51:50,075 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:51:50,077 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:51:50,078 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:51:50,081 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,082 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:51:50,083 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:51:50,085 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:51:50,087 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,098 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:51:50,114 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,115 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,117 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:51:50,123 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:51:50,125 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 13:51:50,137 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:bitrate, got 128
>
> 2020-06-24 13:51:50,140 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_framesize, got 20
>
> 2020-06-24 13:51:50,144 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_complexity, got 9
>
> 2020-06-24 13:51:50,146 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_fec, got False
>
> 2020-06-24 13:51:50,148 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_loss_expectation, got 0
>
> 2020-06-24 13:51:50,150 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_dtx, got False
>
> 2020-06-24 13:51:50,157 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:51:50,177 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,179 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,181 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,183 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,184 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:51:50,186 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:51:50,205 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:51:50,307 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:51:50,309 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)2919919452,
timestamp-offset=(uint)3754439394, seqnum-offset=(uint)23680
>
> 2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
mono audio transmission
>
> 2020-06-24 13:51:52,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-3.87
>
> 2020-06-24 13:51:53,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-6.10
>
> 2020-06-24 13:51:54,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.67
>
> 2020-06-24 13:51:55,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.15
>
> 2020-06-24 13:51:56,230 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-5.27
>
>
>
>
>
>
>
> Here's terminal output for Opus Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:52:43,330 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:52:43,334 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:52:43,336 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,337 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:52:43,337 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:52:43,341 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:52:43,342 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:52:43,344 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,351 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,353 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:52:43,359 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:52:43,375 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:52:43,377 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 15:52:43,387 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:52:43,388 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,389 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,398 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:52:43,433 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:52:43,435 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,436 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:52:46,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.49 R -3.49
>
> 2020-06-24 15:52:47,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.70 R -3.70
>
> 2020-06-24 15:52:48,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.84 R -3.84
>
> 2020-06-24 15:52:49,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.13 R -3.13
>
> 2020-06-24 15:52:50,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.88 R -1.88<hr>_______________________________________________
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5:03 a.m.
New subject: OB and Behringer UCA202
Phil
The audio injector cards are AUD$25 for the stereo sound card. Quite cheap and cheaper
than the Behringer USB devices. The open OB web site says that the USB devices could be a
problem due to the limited USB bandwidth of the Pi. The Pi version up to and including
Pi3 use the USB2 interface for the USB ports (4 of them) as well as the USB to Ethernet
adapter that is on board. In short the USB bus is being asked to do a lot of work.
Give the Audio Injector (http://www.audioinjector.net
<http://www.audioinjector.net/>)card a go you might be impressed with the results as
it uses the I2C bus for data transfer. I have not had any issues with these cards at all
and they are inexpensive. I have just checked their website and they have a balanced
in/out audio card crowd funded that should become available fairly soon so there is your
I/o issues solved and no need to mess with USB adapters.
I have only once has any success with the USB interface and that was when I used a a mixer
with USB interface to connect to a Pi2 B for audio recording. The HiFiBerry are DACs not
ADCs however there is 1 card that has an analog audio input in their range.
Regards
Terry O'Connor
On 27 Jun 2020, at 1:48 pm, Phil Biehl
<fylbeall(a)gmail.com> wrote:
Terry,
Thanks for the suggestions. I may have to abandon the Behringer codecs altogether because
of this problem. It's so close! Ultimately I will probably have to use S/PDIF input
and output devices as I will need both to convert to AES. The HifiBerry devices seem to
fit the bill for that.
Having said that I would prefer to make the Behringers work as it is lowest cost solution
I've found.
Thanks again,
Phil
-----Original Message-----
From: Terry O'Connor [mailto:toconnorau@gmail.com]
Sent: Thursday, June 25, 2020 6:44 PM
To: Phil Biehl
Cc: Lorne Tyndale; James Harrison; openob-users(a)lists.talkunafraid.co.uk
Subject: Re: [openob-users] Re: OB and Behringer UCA202
Phil
I have used the Behringer USB devices and have found a similar issue. I would recommend
the use of the Audio Injector sound card for the Raspberry Pi on the Tx end and the PiFi
DAC+ on the receiver end of the STL. When I set up the link I have found it necessary to
specify the codec, bit rate and the hardware device when invoking Open OB at the transmit
end.
There is a Balanced output version of the HiFI Berry DAC and it does have a nice metal
case as well. I have not used this particular DAC but from all reports it looks pretty
good and the solid case will be a plus with Balanced outputs.
Unfortunately there is no case for the Audio Injector card. I have used the audio
injector stereo sound card with input and output level controls on the card as well as the
audio injector zero card as well. Both work very well but you can use a balanced input
pre-amplifier and adjust the level accordingly. You will still need to set the audio
inputs using the Alsa Mixer.
Regards
Terry O’Connor
On 25 Jun 2020, at 11:42 pm, Phil Biehl
<fylbeall(a)gmail.com> wrote:
Hi Lorne,
Thanks for getting back to me.
When I use opus, the transmitter is sending mono. The receiver is decoding stereo but the
audio is truly mono as removing the left input to the transmitter causes both channels to
drop. Also, there is only one channel shown in the level displays. This is shown in the
first two logs. In the third and fourth logs, using pcm, the transmitter is showing a
stereo channel and the receiver is decoding two channels. This is also seen in the two
channels reported by both ends in the level displays.
I do not want to increase complexity and decrease cpu overhead by adding Jack just to
make this link work correctly. This will be a critical STL link and it has to be robust.
The same applies to pcm, it requires too high of a bitrate and will drop packets when the
network gets congested. Opus is essential to reduce the rate to keep packet loss as low as
possible.
I have noticed that when I plug one of the Behringer UCA202s into my windows 10 PC that
it records in mono as well. Yet I can get a stereo link with OB on the Pis.
I’m wondering if it’s an interaction between opus in OB and the codec? Is there a way to
get this working?
Phil
On Jun 24, 2020, at 8:24 PM, Lorne Tyndale
<ltyndale(a)tyndaleweb.com> wrote:
Phil,
When I look through the logs you attached, on the Opus receiver it
claims it is receiving stereo audio:
2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx -
INFO - Receiving stereo audio transmission
I also see in the transmission it claims it is sending mono:
2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx -
INFO - Started mono audio transmission
Is it possible that you are actually sending stereo and the transmission
notice claiming to be mono is just incorrect?
Also, I know it takes up more cpu cycles, but have you tried running
your audio through Jack on the transmission end?
Lorne
> -------- Original Message --------
> Subject: [openob-users] OB and Behringer UCA202
> From: "Phil Biehl" <fylbeall(a)gmail.com>
> Date: Wed, June 24, 2020 5:07 pm
> To: "'James Harrison'" <james(a)talkunafraid.co.uk>uk>,
> <openob-users(a)lists.talkunafraid.co.uk>
>
>
> Hello All,
>
> Late last year I spent a lot of time trying to get OB working on a pair of Raspberry
Pi3s. I communicated with you all on the list to try to get by the “My Mono Problem” I was
having and eventually gave up. I'm back now trying again to get this to work for a
community radio station (KBOO) backup STL that’s really needed. My configuration is:
Raspberry Pi3B+, Behringer UCA202, OB V4.0.3 running under the current version of
Raspberry Pi OS (32-bit) Lite, Kernel Version 4.19. This time I have had a bit more
success in that I have been able to get a stereo link established by running the
transmitter in PCM mode. However, when I try to use OPUS encoding the link is established
but it is again in mono.
>
>
>
> How can I get a stereo link using OPUS encoding? Help please!
>
>
>
> Thanks,
> Phil
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e pcm
>
> 2020-06-24 13:47:48,561 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:47:48,567 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:47:48,568 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:47:48,570 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:47:48,571 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to pcm
>
> 2020-06-24 13:47:48,572 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:47:48,574 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:47:48,576 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:47:48,577 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:47:48,579 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:47:48,581 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:47:48,582 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:47:48,584 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:47:48,585 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:47:48,586 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,587 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:47:48,588 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,588 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:47:48,590 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,591 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:47:48,593 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:47:48,593 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:47:48,594 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,595 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:47:48,606 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:47:48,621 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,622 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:47:48,623 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:47:48,628 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:47:48,631 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,632 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 13:47:48,643 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:47:48,661 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,663 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,671 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:47:48,674 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:47:48,674 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:47:48,677 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:47:48,692 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:47:48,794 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:47:48,796 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 13:47:49,717 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
stereo audio transmission
>
> 2020-06-24 13:47:50,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.10 R -6.90
>
> 2020-06-24 13:47:51,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -1.17 R -0.68
>
> 2020-06-24 13:47:52,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.71 R -0.64
>
> 2020-06-24 13:47:53,716 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Levels: L -2.75 R -0.79
>
>
>
>
>
>
>
> Here's terminal output for PCM Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:48:06,456 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:48:06,461 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:48:06,461 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,462 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:48:06,463 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,464 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:48:06,465 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,465 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,466 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:48:06,466 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:48:06,467 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:48:06,468 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:48:06,468 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:48:06,469 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:48:06,470 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:48:06,472 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96,
ssrc=(uint)2214917403, timestamp-offset=(uint)373598967, seqnum-offset=(uint)27244
>
> 2020-06-24 15:48:06,479 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,481 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:48:06,487 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:48:06,503 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:48:06,505 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,506 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got pcm
>
> 2020-06-24 15:48:06,509 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:48:06,511 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,512 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:48:06,521 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:48:06,556 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:48:06,558 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:48:06,559 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:48:08,359 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:48:09,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.41 R -1.36
>
> 2020-06-24 15:48:10,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.94 R 0.00
>
> 2020-06-24 15:48:11,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.10 R -0.00
>
> 2020-06-24 15:48:12,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.95 R -0.51
>
> 2020-06-24 15:48:13,358 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -0.77 R -0.21
>
>
>
>
>
>
>
> Here's terminal output for PCM Transmitter side:
>
> pi@OpenOB-TX:~ $ openob -v 192.168.0.162 test-tx-node test-link tx 192.168.0.162 -d
hw:1 -a alsa -r 48000 -j 1000 -e opus
>
> 2020-06-24 13:51:50,054 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 13:51:50,060 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 13:51:50,061 - openob.link.test-link.config - DEBUG - Set
openob:test-link:port to 3000
>
> 2020-06-24 13:51:50,062 - openob.link.test-link.config - DEBUG - Set
openob:test-link:jitter_buffer to 1000
>
> 2020-06-24 13:51:50,064 - openob.link.test-link.config - DEBUG - Set
openob:test-link:encoding to opus
>
> 2020-06-24 13:51:50,065 - openob.link.test-link.config - DEBUG - Set
openob:test-link:bitrate to 128
>
> 2020-06-24 13:51:50,067 - openob.link.test-link.config - DEBUG - Set
openob:test-link:multicast to 0
>
> 2020-06-24 13:51:50,069 - openob.link.test-link.config - DEBUG - Set
openob:test-link:input_samplerate to 48000
>
> 2020-06-24 13:51:50,071 - openob.link.test-link.config - DEBUG - Set
openob:test-link:receiver_host to 192.168.0.162
>
> 2020-06-24 13:51:50,072 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_framesize to 20
>
> 2020-06-24 13:51:50,074 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_complexity to 9
>
> 2020-06-24 13:51:50,075 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_fec to 1
>
> 2020-06-24 13:51:50,077 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_loss_expectation to 0
>
> 2020-06-24 13:51:50,078 - openob.link.test-link.config - DEBUG - Set
openob:test-link:opus_dtx to 0
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set mode to tx
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set samplerate to 48000
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,079 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 13:51:50,081 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,082 - openob.node.test-tx-node - INFO - Link test-link initial
setup start on test-tx-node
>
> 2020-06-24 13:51:50,083 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,084 - openob.node.test-tx-node.link.test-link - INFO - Starting
up transmitter
>
> 2020-06-24 13:51:50,085 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched mode, got tx
>
> 2020-06-24 13:51:50,086 - openob.node.test-tx-node.link.test-link.tx - INFO -
Creating transmission pipeline
>
> 2020-06-24 13:51:50,087 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building audio input bin
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,088 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 13:51:50,098 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 13:51:50,114 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,115 - openob.node.test-tx-node.audio_interface.default - DEBUG -
Fetched samplerate, got 48000
>
> 2020-06-24 13:51:50,117 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
audio/x-raw, rate=(int)48000
>
> 2020-06-24 13:51:50,123 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building encoder bin
>
> 2020-06-24 13:51:50,125 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 13:51:50,137 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:bitrate, got 128
>
> 2020-06-24 13:51:50,140 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_framesize, got 20
>
> 2020-06-24 13:51:50,144 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_complexity, got 9
>
> 2020-06-24 13:51:50,146 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_fec, got False
>
> 2020-06-24 13:51:50,148 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_loss_expectation, got 0
>
> 2020-06-24 13:51:50,150 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:opus_dtx, got False
>
> 2020-06-24 13:51:50,157 - openob.node.test-tx-node.link.test-link.tx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 13:51:50,177 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,179 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,181 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 13:51:50,183 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 13:51:50,184 - openob.node.test-tx-node.link.test-link.tx - INFO - Set
receiver to 192.168.0.162:3000
>
> 2020-06-24 13:51:50,186 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 13:51:50,205 - openob.node.test-tx-node.link.test-link.tx - WARNING -
Waiting for audio interface/caps
>
> 2020-06-24 13:51:50,307 - openob.node.test-tx-node.link.test-link - DEBUG - Got caps
from transmitter, setting config
>
> 2020-06-24 13:51:50,309 - openob.link.test-link.config - DEBUG - Set
openob:test-link:caps to application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)2919919452,
timestamp-offset=(uint)3754439394, seqnum-offset=(uint)23680
>
> 2020-06-24 13:51:51,228 - openob.node.test-tx-node.link.test-link.tx - INFO - Started
mono audio transmission
>
> 2020-06-24 13:51:52,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-3.87
>
> 2020-06-24 13:51:53,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-6.10
>
> 2020-06-24 13:51:54,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.67
>
> 2020-06-24 13:51:55,227 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-2.15
>
> 2020-06-24 13:51:56,230 - openob.node.test-tx-node.link.test-link.tx - DEBUG - Level:
-5.27
>
>
>
>
>
>
>
> Here's terminal output for Opus Receiver side:
>
> pi@OpenOB-RX:~ $ openob -v 192.168.0.162 test-rx-node test-link rx -d hw:1 -a alsa
>
> 2020-06-24 15:52:43,330 - openob.link.test-link.config - INFO - Connecting to
configuration host 192.168.0.162
>
> 2020-06-24 15:52:43,334 - openob.link.test-link.config - DEBUG - Set
openob:test-link:name to test-link
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set mode to rx
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set type to alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,335 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Set alsa_device to hw:1
>
> 2020-06-24 15:52:43,336 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,337 - openob.node.test-rx-node - INFO - Link test-link initial
setup start on test-rx-node
>
> 2020-06-24 15:52:43,337 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,338 - openob.node.test-rx-node.link.test-link - INFO - Waiting
for transmitter capabilities...
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,339 - openob.link.test-link.config - DEBUG - Fetched (blocking)
caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Got caps
from transmitter
>
> 2020-06-24 15:52:43,340 - openob.node.test-rx-node.link.test-link - INFO - Starting
up receiver
>
> 2020-06-24 15:52:43,341 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:name, got test-link
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched mode, got rx
>
> 2020-06-24 15:52:43,341 - openob.node.test-rx-node.link.test-link.rx - INFO -
Creating reception pipeline
>
> 2020-06-24 15:52:43,342 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building RTP transport bin
>
> 2020-06-24 15:52:43,344 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:caps, got application/x-rtp, media=(string)audio, clock-rate=(int)48000,
encoding-name=(string)OPUS, sprop-maxcapturerate=(string)48000, sprop-stereo=(string)0,
payload=(int)96, encoding-params=(string)2, ssrc=(uint)1266186479,
timestamp-offset=(uint)3427950381, seqnum-offset=(uint)22898
>
> 2020-06-24 15:52:43,351 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,353 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:multicast, got False
>
> 2020-06-24 15:52:43,359 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:jitter_buffer, got 1000
>
> 2020-06-24 15:52:43,375 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building decoder bin
>
> 2020-06-24 15:52:43,377 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:encoding, got opus
>
> 2020-06-24 15:52:43,387 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Building audio output bin
>
> 2020-06-24 15:52:43,388 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,389 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched type, got alsa
>
> 2020-06-24 15:52:43,398 - openob.node.test-rx-node.audio_interface.default - DEBUG -
Fetched alsa_device, got hw:1
>
> 2020-06-24 15:52:43,433 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:receiver_host, got 192.168.0.162
>
> 2020-06-24 15:52:43,435 - openob.link.test-link.config - DEBUG - Fetched
openob:test-link:port, got 3000
>
> 2020-06-24 15:52:43,436 - openob.node.test-rx-node.link.test-link.rx - INFO -
Listening for stream on 192.168.0.162:3000
>
> 2020-06-24 15:52:45,360 - openob.node.test-rx-node.link.test-link.rx - INFO -
Receiving stereo audio transmission
>
> 2020-06-24 15:52:46,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.49 R -3.49
>
> 2020-06-24 15:52:47,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.70 R -3.70
>
> 2020-06-24 15:52:48,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.84 R -3.84
>
> 2020-06-24 15:52:49,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -3.13 R -3.13
>
> 2020-06-24 15:52:50,360 - openob.node.test-rx-node.link.test-link.rx - DEBUG -
Levels: L -1.88 R -1.88<hr>_______________________________________________
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4 comments
3 participants
participants (3)
-
Lorne Tyndale -
Phil Biehl -
Terry O'Connor