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Wolfson audio card + Jasper ?

fvan

Hi,

 

has anyone been able to get Jasper (Jasper | Control everything with your voice ) to work with the Wolfson audio card ?

 

I tried getting it to work with two different approaches and ended up with the same result (which is something good I suppose).

  • Took the Wolfson image and manually installed Jasper software
  • Took the Jasper image and manually installed Wolfson drivers/kernel

 

Jasper is working via the command line, but when trying to use voice control, I get some (Alsa related?) errors.

 

Expression 'PaAlsaStream_Configure( stream, inputParameters, outputParameters, sampleRate, framesPerBuffer, &inputLatency, &outputLatency, &hostBufferSizeMode )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2762
Expression 'r' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2013
Expression 'PaAlsaStreamComponent_FinishConfigure( &self->capture, hwParamsCapture, inParams, self->primeBuffers, realSr, inputLatency )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2650

 

Full log attached.

 

Thanks!

Frederick

Attachments:
jasper_log.txt.zip
  • 0 in reply to Former Member

    Thanks Georg, I'll give it a try, as I haven't been able to get past this problem yet.

     

    Frederick

  • 0 in reply to fvan

    Hi Frederick,

    please report here if you get it running on your pi with the wolfson card. I'd be interested in this to. It would be nice to say "Shutdown" and the pi would do it :-)

    Georg

  • 0

    Hi Frederick,

    Jasper works fine with the Wolfson audio card using the .asoundrc found at the link below. It allows alsa to play/record in any rate format. I also removed the hw: references in boot.py and mic.py. The original error you got is due to the wolfson card throwing an error on the samplerate.

     

    Raspberry Pi and Karaoke Machine (Wolfson Pi Use and its Limitation)

     

    Here is where they admit the unintentional behavior:

    Re: PJSIP/PJSUA with Wolfson audio card

    Element14: "I can confirm your observation on the sample rate limitation. From our perspective it wasn’t the intention to limit the audio ADC and DAC sample rates to above 32k. At the moment we are investigating an update to the drivers which will allow full 8k to 192k support for the analogue inputs and outputs."

  • 0 in reply to willondubs

    I do believe I have it working but I cannot get sound to output. The example Wolfson gave had the sound connected to the SPKOUT and a 5v supply connected to the card. Is this the only way to get Jasper to play sound with Wolfson?

  • 0 in reply to willondubs

    I applied the .asoundrc as you described. The behaviour is now different, but it still crashes.

     

    When running jasper's main.py:

     

    Playing WAVE 'say.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround40
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_dsnoop.c:551:(snd_pcm_dsnoop_open) The dsnoop plugin supports only capture stream
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib dlmisc.c:254:(snd1_dlobj_cache_get) Cannot open shared library /usr/lib/arm-linux-gnueabihf/alsa-lib/libasound_module_rate_samplerate.so
ALSA lib pcm_rate.c:1399:(snd_pcm_rate_open) Cannot find rate converter
Segmentation fault

     

    When searching for the file, it is indeed not there:

     

    pi@raspberrypi ~/jasper/client $ sudo ls -l /usr/lib/arm-linux-gnueabihf/alsa-lib/libasound_module_rate_samplerate.so

ls: cannot access /usr/lib/arm-linux-gnueabihf/alsa-lib/libasound_module_rate_samplerate.so: No such file or directory

     

    When playing out without the "hw" referenc emanually (this is what you removed from the mic.py ?):

     

    pi@raspberrypi ~/jasper/client $ aplay beep_hi.wav
Playing WAVE 'beep_hi.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
ALSA lib dlmisc.c:254:(snd1_dlobj_cache_get) Cannot open shared library /usr/lib/arm-linux-gnueabihf/alsa-lib/libasound_module_rate_samplerate.so
ALSA lib pcm_rate.c:1399:(snd_pcm_rate_open) Cannot find rate converter
Segmentation fault

  • 0 in reply to fvan

    This might help not sure though:

     

    sudo apt-get install libasound2-plugins

     

    What jack are you using for speakers?

     

    This is how I got it working but I think I need to solder on the pins and hook up some speakers that way

     

    http://www.raspians.com/wolfson-jasper/

  • 0 in reply to malakai

    Hi Todd,

    Getting Jasper to play requires that you can play a wav file using aplay with no arguments. Once that works, you want to remove the aplay hardware references(-D hw:x,x) in /boot/boot.py and /client/mic.py

     

    Try this file:

    aplay /home/pi/jasper/static/audio/jasper.wav

     

    My standard speakers work in the line out (green plug) and from the headphone out (black). Jasper works great with the onboard digital mics.

  • 0 in reply to fvan

    Hi Frederick,

    I also had to add libasound2-plugins for it to work.

     

    The good thing about getting Jasper working is that you've completed most of the requirements for getting another project working called Blather. It's better for my uses than Jasper and supports true continuous listening.

     

    Links for the Blather project:

    Project: Jezra.net: projects: Blather - speech recognizer

    Code: https://gitorious.org/blather

     

    If you're interested in getting Blather working on the pi, let me know and I can share notes. I'm having a problem with the very last step and it would be nice if someone else is trying it too.

     

    Thanks,

    Will