2006/8/8, Olivier Delhomme <[EMAIL PROTECTED]>:
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 ?
thanks,
Olivier Delhomme
2006/8/8, Clemens Ladisch <[EMAIL PROTECTED]>:Olivier Delhomme wrote:
> I discovered that some sound cards (C-MEDIA PCI CMI8738-MC6 for example)
> are not able to record in mono and thus defaults to stereo.
>
> Does anyone knows how to manage to live "down mix" this stereo sound to
> mono ?
The data gets automatically downmixed when you use one of the devices
that can automatically convert sample formats, like "default" or
"plughw".
HTH
Clemens
Hello, I'm using the "hw:0" device, is there a difference from "default" ?
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 ?
thanks,
Olivier Delhomme
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