Hi all,
My application records one second of sound every 5 seconds. The sound card 'sndrpiwsp' is properly open, and recording works fine for roughly one to two hours. Then suddenly the recording stops with the alsa error:
ALSAAudioError: Device or resource busy
I tried various parameters with always the same disappointing failure:
- capture with PCM_NORMAL or PCM_NONBLOCK
- sampling rate at 48000Hz or 96000Hz
- period size at 64, 128, 256
Any idea or suggestion to try?
Thank you
Eric
Note: I tried to reopen the card when the busy device error is received but this fails too.
Note 2: the same software was working fine (i.e for days long) with my USB sound card before installing the Wolfson.