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

From: Hans Petter Selasky <hps_at_selasky.org>
Date: Thu, 7 Oct 2021 14:04:44 +0200
On 10/7/21 2:01 PM, KIRIYAMA Kazuhiko wrote:
> On Thu, 07 Oct 2021 10:51:59 +0900,
> KIRIYAMA Kazuhiko wrote:
>>
>> On Wed, 06 Oct 2021 07:34:49 +0900,
>> Tomasz CEDRO wrote:
>>>
>>> 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:
>>>
>>> echo $AUDIODEVICE
>>>
>>> That should return delected device: rsnd/4
>>
>> I've set bellow :
>>
>> export AUDIOPLAYDEVICE="rsnd/5"
>> export AUDIORECDEVICE="rsnd/4"
>>
>> and start zoom on chromium, then /dev/dsp4.0
>> grew. And tested mic by :
>>
>> % aucat -o tmp/test.wav
>> % aucat -i tmp/test.wav
>>
>> My voice sound from my speaker (/dev/dsp5.0) :-)
>> Thanx Tomasz !!!
>>
>> BTW mic volume is low and I set sndiod with :
>>
>> # /usr/local/bin/sndiod -a on -m rec -f rsnd/4 -v 127
>>
>> but volume not changed. Is there any way to control mic
>> volume ?
> 
> Thats' mixer. I've set max input of mic as follows :
> 
> % mixer -f /dev/mixer4
> Mixer mic      is currently set to  25:25
> Recording source: mic
> % mixer -f /dev/mixer4 mic 100
> Setting the mixer mic from 25:25 to 100:100.
> %

Hi,

FYI

virtual_oss can over-gain the signal and add a so-called compressor in 
the end to avoid clipping.

I'm not sure about sndiod.

--HPS
Received on Thu Oct 07 2021 - 12:04:44 UTC

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