Re: Mic does not work with Zoom on Chromium 92.0.4515.159.

From: Tomasz CEDRO <>
Date: Tue, 05 Oct 2021 22:34:49 UTC
On Wed, Oct 6, 2021 at 12:29 AM KIRIYAMA Kazuhiko wrote:
> I don't know how to open /dev/dsp4.0.

This is just /dev/dsp4, you can try try produce some noise on the
speaker with the same result:

cat /dev/random > /dev/dsp4

cat /dev/random > /dev/dsp4.0

See my previous detailed message on sndio configuration :-)

export AUDIODEVICE="rsnd/4"

Above should do the job.

Remember you need to export it in local terminal that you run chromium
after export, or if you put it in ~/.profile then you need to logout
and login again or start new terminal.

You can verify if the env is set with:


That should return delected device: rsnd/4