In the output, search for the index: section listing the desired device, e.g. If you want to set the volume to the "native" volume of your microphone (0dB of the hardware, without added "mic boost" that can add static noise), adjust this volume number until the top left of alsamixer shows db gain: 0.00, like so: In the configuration file /usr/share/pulseaudio/alsa-mixer/paths/nf (you might have to look for the correct file for your microphone, see below), I changed to part Īnd after a sudo alsa force-reload, applications don't magically change the microphone volume anymore.Ībove, we use volume = 40, which corresponds to the numeric value shown in alsamixer below the green level control fader as shown here. With Ubuntu, it is at least possible to prevent ALSA from responding to such requests. ![]() Sometimes it is impossible to prevent applications from trying to adjust the microphone level.
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