Actually I was stuck in the same question/ issue and use every solutions online. I got the white noise/static noise by installing Ubuntu 21.10 MATE on ASUS ROG G14. However by some old posts none of them solve my problem. Including editing the alsa-base:
sudo vi /etc/modprobe.d/alsa-base.conf
editing /etc/pulse/default.pa
load-module module-udev-detect tsched=0
load-module module-echo-cancel source_name=logitechsource
Applying this solution:
sudo hda-verb /dev/snd/hwC0D0 0x20 0x500 0x1b
sudo hda-verb /dev/snd/hwC0D0 0x20 0x477 0x4a4b
sudo hda-verb /dev/snd/hwC0D0 0x20 0x500 0xf
sudo hda-verb /dev/snd/hwC0D0 0x20 0x477 0x74
sudo hda-verb /dev/snd/hwC0D0 0x20 0x500 0x1b
sudo hda-verb /dev/snd/hwC0D0 0x20 0x477 0x4a4b
sudo hda-verb /dev/snd/hwC0D0 0x20 0x500 0xf
sudo hda-verb /dev/snd/hwC0D0 0x20 0x477 0x74
In the end this noise goes away by this procedure:
sudo apt purge pulseaudio* alsa-*
rm -fr .config/pulse, also I do this for sure: rm -r ~/.config/tenacity/ ~/.config/smplayer/ ~/.config/pulse ~/.config/obs-studio/ ~/.config/pavucontrol.ini
sudo apt install pulseaudio alsa-base
After the first reboot I confirm there is no more noise. and after second reboot the noise is avoided as well.
I highly believe it's the problem from the pulseaudio becauseI never got this problem on Windows 10, and the noise will also go into the audio-recording under linux. Also the noise show up on Fedora 35 as well. FYI.