Hi all
What’s the status with a RPi 4b, using a USB sound device? I know that this used to result in choppy audio with old Pis, are the newer ones up to it?
Thanks
R
Hello,
We've successfully got openOB up and running, streaming over the web with zerotier as a tunnel. We are however, experiencing around 1 second of latency.
The audio is coming through jack and a usb sound card (focusrite scarlette 2i2), we can do a local loopback in jack and experience near to zero latency. Then running openOB on either a LAN or WAN we can get the extra latency.
We've had success using jacktrip running on Pi's with low latency and the local loopback working suggests there's an issue with our open OB config.
Any help or pointers would be greatly appreciated. Currently using the below commands for tx/rx.
openob xxx.xxx.xxx.xxx rpi link1 tx xxx.xxx.xxx.xxx -a jack -jn TX -jp a
openob xxx.xxx.xxx.xxx rpi link1 rx -a jack -jn RX -jp a
Kind Regards,
Dan
Hi
I installed OpenOb on a RasPi3 B+ using 'Stretch lite' OS, with a UCA222
USB audio interface connected at both ends. After about one hour, the
receive end CPU shot to 100%, temp went up to 65 C and the audio
stopped, though network lights on the Pi's still flashing.
Stopped the receiver, let it cool, then restarted and audio started
streaming again. Ran for about 1 hour, then audio dropped out again, CPU
at 102%.
I re-formatted the SD card and reloaded OpenOb, same problem (also tried
with Buster lite, same problem).
The prerequisites I used:
apt install gstreamer1.0-plugins-base gir1.2-gstreamer1.0
gstreamer1.0-plugins-ugly gstreamer1.0-tools gstreamer1.0-plugins-good
gstreamer1.0-plugins-bad gstreamer1.0-alsa
apt install python-setuptools python-gst-1.0 python-gi python-redis
python-pip
apt install redis-server (Receive end)
pip install openob
Has anyone come across this problem before ?, am I missing something
with the prerequisites ?
Any suggestions would be appreciated.
Evan
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Hi all
I’ve installed openob, but on the receiver I get the following error. This usually comes when I start the tx end on the other pc. I can’t then restart the rx end - I have to do a FLUSHALL in redis. Can anyone tell me what’s going on?
2020-10-24 17:52:07,015 - openob.node.nas.link.test - INFO - Waiting for transmitter capabilities...
2020-10-24 17:52:07,015 - openob.node.nas.link.test - INFO - Got caps from transmitter
2020-10-24 17:52:07,015 - openob.node.nas.link.test - INFO - Starting up receiver
2020-10-24 17:52:07,016 - openob.node.nas.link.test.rx - INFO - Creating reception pipeline
2020-10-24 17:52:07,018 - openob.node.nas.link.test - ERROR - Receiver crashed for some reason! Restarting...
Traceback (most recent call last):
File "build/bdist.linux-x86_64/egg/openob/node.py", line 60, in run_link
receiver = RTPReceiver(self.node_name, link_config, audio_interface)
File "build/bdist.linux-x86_64/egg/openob/rtp/rx.py", line 20, in __init__
self.build_pipeline()
File "build/bdist.linux-x86_64/egg/openob/rtp/rx.py", line 41, in build_pipeline
self.decoder = self.build_decoder()
File "build/bdist.linux-x86_64/egg/openob/rtp/rx.py", line 107, in build_decoder
decoder.set_property('use-inband-fec', True) # FEC
AttributeError: 'NoneType' object has no attribute 'set_property'
2020-10-24 17:52:07,118 - openob.node.nas.link.test - INFO - Waiting for transmitter capabilities...
2020-10-24 17:52:07,118 - openob.node.nas.link.test - INFO - Got caps from transmitter
2020-10-24 17:52:07,118 - openob.node.nas.link.test - INFO - Starting up receiver
2020-10-24 17:52:07,119 - openob.node.nas.link.test.rx - INFO - Creating reception pipeline
2020-10-24 17:52:07,121 - openob.node.nas.link.test - ERROR - Receiver crashed for some reason! Restarting...
Traceback (most recent call last):
File "build/bdist.linux-x86_64/egg/openob/node.py", line 60, in run_link
receiver = RTPReceiver(self.node_name, link_config, audio_interface)
File "build/bdist.linux-x86_64/egg/openob/rtp/rx.py", line 20, in __init__
self.build_pipeline()
File "build/bdist.linux-x86_64/egg/openob/rtp/rx.py", line 41, in build_pipeline
self.decoder = self.build_decoder()
File "build/bdist.linux-x86_64/egg/openob/rtp/rx.py", line 107, in build_decoder
decoder.set_property('use-inband-fec', True) # FEC
AttributeError: 'NoneType' object has no attribute 'set_property'
^CTraceback (most recent call last):
File "/usr/local/bin/openob", line 4, in <module>
__import__('pkg_resources').run_script('OpenOB==4.0.3', 'openob')
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 534, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 1445, in run_script
exec(script_code, namespace, namespace)
File "/usr/local/lib/python2.7/dist-packages/OpenOB-4.0.3-py2.7.egg/EGG-INFO/scripts/openob", line 87, in <module>
File "build/bdist.linux-x86_64/egg/openob/node.py", line 65, in run_link
KeyboardInterrupt
