2006/8/8, Clemens Ladisch <[EMAIL PROTECTED]>:
Ok. thanks,
Olivier Delhomme.
Olivier Delhomme wrote:
> Ok, if I tell arecord to use specifically the device "hw:0" or "hw:0,0"
> the error message is :
> arecord -D"hw:0,0" --channels=1 --format=S16_LE --rate=44100
> arecord: set_params:906: Channels count non available
>
> But if I tell arecord to use the "default" device (-D"default") it is Ok!
> So there IS a difference.
>
> I'll use this settings in my project, but as I'm curious i'm willing to
> know how can I do this automatic downmix using the "hw:0,0" device ?
"hw" goes directly to the hardware and thus is restricted to the
capabilities of the sound chip. "plughw" (which is what "default"
aliases to) adds a software layer the automatically converts sample
formats.
Ok. thanks,
Olivier Delhomme.
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