In /usr/share/pulseaudio/alsa-mixer/paths/analog-input-internal-mic.conf
and /usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic.conf
:
- Under
[Element Internal Mic Boost]
set volume tozero
. - Under
[Element Int Mic Boost]
set volume tozero
. - Under
[Element Mic Boost]
setvolume
tozero
Find your source name from the following command; mine is alsa_input.pci-0000_00_1f.3.analog-stereo
$ pacmd list-sources | grep 'name:.*input'
Edit /etc/pulse/default.pa
and add the following lines, where INPUT_NAME
is name of the input source from above step:
`load-module module-remap-source source_name=record_mono master=INPUT_NAME master_channel_map=front-left channel_map=mono`
`set-default-source record_mono`
Then restart PulseAudio:
$ pulseaudio -k
$ pulseaudio --start
Does anyone know if this fix works for Ubuntu 20.04 LTS too? I noted some mentioned fields to have value
off
in this version and was not sure if it should move tozero
. Besides that I also got a message saying daemon was not running when I tried to tunpacmd list-sources