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Pavel Diptan avatar Ubuntu

Microphone stops working at any volume apart from 99-100%

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Pavel Diptan

The webcam microphone volume seems to be only functional between 99-100%. At 99% it is what I would count as ~10% of real volume, at 100% it's full volume (normal) while <=98% the microphone is basically switched off.

This wouldn't be a major issue but it means automatic volume control causes issues both natively (in Plasma UI) and in software such as Slack and Google Hangouts. For some software such as Slack, there are options to Disable Automatic gain control, but Google Hangouts does not let you disable it.

I have no idea how to go about troubleshooting this. I did the Step 4 from Ubuntu sound troubleshooting and the output is here.

               .-/+oossssoo+/-.               andrea@casamercia 
        `:+ssssssssssssssssss+:`           ----------------- 
      -+ssssssssssssssssssyyssss+-         OS: Ubuntu 20.04.3 LTS x86_64 
    .ossssssssssssssssssdMMMNysssso.       Host: MS-7C02 1.0 
   /ssssssssssshdmmNNmmyNMMMMhssssss/      Kernel: 5.11.0-38-generic 
  +ssssssssshmydMMMMMMMNddddyssssssss+     Uptime: 3 hours, 4 mins 
 /sssssssshNMMMyhhyyyyhmNMMMNhssssssss/    Packages: 3672 (dpkg), 10 (snap) 
.ssssssssdMMMNhsssssssssshNMMMdssssssss.   Shell: bash 5.0.17 
+sssshhhyNMMNyssssssssssssyNMMMysssssss+   Resolution: 2560x1440, 1920x1080 
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   DE: Plasma 
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   WM: KWin 
+sssshhhyNMMNyssssssssssssyNMMMysssssss+   WM Theme: Breeze 
.ssssssssdMMMNhsssssssssshNMMMdssssssss.   Theme: Breeze [Plasma], Breeze [GTK3] 
 /sssssssshNMMMyhhyyyyhdNMMMNhssssssss/    Icons: breeze [Plasma], breeze [GTK2/3] 
  +sssssssssdmydMMMMMMMMddddyssssssss+     Terminal: konsole 
   /ssssssssssshdmNNNNmyNMMMMhssssss/      CPU: AMD Ryzen 5 3600 (12) @ 3.600GHz 
    .ossssssssssssssssssdMMMNysssso.       GPU: NVIDIA GeForce RTX 2070 SUPER 
      -+sssssssssssssssssyyyssss+-         Memory: 5446MiB / 15954MiB 
        `:+ssssssssssssssssss+:`
            .-/+oossssoo+/-.
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