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thanks for your response. Will place the question in stackoverflow. If you can help further, here is what you requested for. define DEFAULT_PERIOD_SIZE (4096) define DEFAULT_NO_OF_PERIODS (1024) static struct snd_pcm_hardware xxx_playback = { .info = SNDRV_PCM_INFO_MMAP | ...


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I have just installed audio-recorder: https://launchpad.net/audio-recorder which in its options show what you need...


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1) Check if the user is part of the audio group: id <user> If not, add the user to the group with: usermod -aG audio <user> A logout/login will probably be necessary to re-activate 2) If you have a /dev/audio device, try copying any smallish (about 50kB) to that device: cat file > /dev/audio if you hear anything, then audio is ...



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