[openob-users] Re: OB and Behringer UCA202

25 Jun 2020

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" &lt;fylbeall(a)gmail.com&gt;
> Date: Wed, June 24, 2020 5:07 pm
> To: "'James Harrison'" &lt;james(a)talkunafraid.co.uk&gt;uk>,
> &lt;openob-users(a)lists.talkunafraid.co.uk&gt;
> 
> 
> 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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