[alsa-devel] multi channels input and single channel out

Lu Guanqun guanqun.lu at intel.com
Fri May 6 02:23:23 CEST 2011

On Fri, May 06, 2011 at 07:47:55AM +0800, hong zhang wrote:
> List,
> I have 8 channels of hdmi input and one channel output on my board.
> When arecord -f dat hdmi-rx.wav to store 8 channels data, aplay -f dat hdmi-rx.wav releases noise.
> Ia there any way arecord stores each channel data to 8 different files?

check out the "--separate-channels" option for arecord.
see if it meets your needs.

> Or I have to do beam forming to sort 8 channels out by custom application?
> Thanks.
> ---henry
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