I don't know why this traceback is printed, but it does not seem to affect performance. Try to use the soundcard dispite the traceback.
Le dimanche 16 février 2014 14:43:56 UTC-3, Mark Noworolski a écrit : > > I'm trying to get pyAudio operational with a C-media mic/speaker card on a > beaglebone black running ubuntu 13.04. > After many permutations of attempts, I'm seeking help here - as I simply > cannot get the combination of configuration and pyAudio to play nice here. > > I've disabled the HDMI by modifying uEnv.txt: optargs=quiet > capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN > > And I see my sound card listed: > root@ubuntu-armhf:/home/ubuntu# cat /proc/asound/devices > 2: [ 1- 0]: digital audio playback > 3: [ 1- 0]: digital audio capture > 4: [ 1] : control > 33: : timer > and: > root@ubuntu-armhf:/home/ubuntu# aplay -l > **** List of PLAYBACK Hardware Devices **** > card 1: Set [C-Media USB Headphone Set], device 0: USB Audio [USB Audio] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > Simple python code fails: > import pyaudio > p=pyaudio.PyAudio() > > s=p.open(format=pyaudio.paInt16,input_device_index=1,channels=1,rate=44100,input=True,frames_per_buffer=1024) > > with the following errors: > root@ubuntu-armhf:/home/ubuntu# python audio_test.py > ALSA lib confmisc.c:768:(parse_card) cannot find card '0' > ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_card_driver > returned error: No such file or directory > ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings > ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_concat > returned error: No such file or directory > > Attempts to change the default card to '0' have failed as well. 2 Examples: > 1. Per: http://ubuntuforums.org/showthread.php?t=1313071, adding > root@ubuntu-armhf:/etc/modprobe.d# tail -1 alsa-base.conf > options snd-card-usb-caiaq index=0 > does not seem to set the default card to 0 (this is the setting used above) > > 2. Changing asound.conf per: > http://feipengy.no-ip.biz/blog/2013/12/09/enable-audio-in-beaglebone-black/ > Similar failure is observed from pyAudio. > > Any ideas? I suspect I'm missing something really obvious here. > > > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
