[alsa-devel] Distortion in SND_PCM_FORMAT_S32 playback with Intel HDA
22 Feb
2009
22 Feb
'09
5:35 a.m.
This problem only occurs when samples very close to min/max limits is played. Sounds like integer overflows to the other side. My sample data is correct (not overflowing itself), but apparently ALSA has stricter limits.
I'm using device hw:Intel, so ALSA shouldn't be doing any sample format conversions. Thus I suspect that this might be a fault (a feature) of the hardware itself.
Can anyone confirm this?
Playing in 16 bit mode there is no problem and even -32768 seems to be playing properly.
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Lasse Kärkkäinen