Re: Hot to use speakers from one sound card an mic from another?

On Sun, May 02, 2021 at 08:55:27AM +0200, Federico Giannici wrote:
> SHORT VERSION: How can I make Chromium to use the speakers from the internal
> soundcard and the the microphone from an USB card?

You could do what you want with AUDIORECDEVICE environment variable
(see sndio(4) man page).

$ doas sysctl kern.audio.record=1
$ export AUDIORECDEVICE=snd/1
$ chrome

it will makes libsndio to open 'snd/1' device for recording and open
'default' (usually 'snd/0') for playing.

Please note that it is working for chromium as it is opening two
devices: one for recording and another for playing. A program which is
opening ONE device for playing AND recording couldn't work with this
trick (like firefox for example).

Thanks.
--
Sebastien Marie