[alsa-devel] ALSA Underrun / Silence playback

Clemens Ladisch clemens at ladisch.de
Mon Dec 5 11:45:32 CET 2011

Irfan shaikh wrote:
> I have used my threshold as boundary value also and checked the audio
> performance.  I was still getting UNDERRUN's (-32).

Did you actually call snd_pcm_sw_params()?

> I was not able to get how the boundry which i get (1572864000) is more
> than the buffer size (512 X 16) which i have set.

The boundary value is a large multiple of the buffer size.


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