Using Example audio-only_client.py... Unknown PCM cards

[ChZeman]

I installed pymumble using pip3 on a Raspberry Pi. I'm also running Python 3, of course. :) I'm using a USB sound card and the onboard audio is disabled. I made the USB sound card the default sound card in /usr/share/alsa/alsa.conf. I get the following errors when running the example "audio-only_client.py" and am not sure where to go from here.

pi@raspberrypi:~/Downloads $ python audio-only_client.py
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5036:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM bluealsa
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5036:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM bluealsa
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
python: src/hostapi/alsa/pa_linux_alsa.c:3641: PaAlsaStreamComponent_BeginPolling: Assertion `ret == self->nfds' failed.
Aborted

Thank you,
Chris

[azlux]

This is more an ALSA issue here. The code isn't able to connect to the ALSA server oin your raspberry.
Some search will help you : https://www.raspberrypi.org/forums/viewtopic.php?t=136974

[ChZeman]

Here's the solution for anyone else who runs into this problem (credit to: Greg Glockner, https://stackoverflow.com/users/446610/greg-glockner)

https://stackoverflow.com/questions/59006083/how-to-install-portaudio-on-pi-properly
##########
sudo apt-get remove libportaudio2
sudo apt-get install libasound2-dev
git clone -b alsapatch https://github.com/gglockner/portaudio
cd portaudio
./configure && make
sudo make install
sudo ldconfig
cd ..
##########