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Output of `pactl list sources` (truncated):
Source #4
State: SUSPENDED
Name: alsa_input.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__Mic2__source
Description: Comet Lake PCH-LP cAVS Headphones Stereo Microphone
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 48000Hz
Channel Map: front-left,front-right
Owner Module: 6
Mute: no
Volume: front-left: 22937 / 35% / -27,36 dB, front-right: 52428 / 80% / -5,81 dB
balance 0,56
Base Volume: 6554 / 10% / -60,00 dB
Monitor of Sink: n/a
Latency: 0 usec, configured 0 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Note this line:
Base Volume: 6554 / 10% / -60,00 dB
I am in fact debugging an issue where my headset mic is not working.
But after extensive search, I was not able to find a means to change the value of that "Base Volume".
I have been able to change its normal volume with
pactl set-source-volume 4 80%
Bonus question: the same output for the same source also prints:
Ports:
[In] Mic2: Headphones Stereo Microphone (type: Mic, priority: 200, available)
Active Port: [In] Mic2
Formats:
pcm
I see there priority: 200, can that priority be changed as well somehow?
Just trying out stuff....
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Hello!
Pulseaudio takes this value from ALSA, so to change it you need to use alsamixer.
The value basically determins what Pulseaudio considers to be 100%. Increasing the value would make the volume setting of Pulseaudio more sensitive — i.e. the volume difference between two percentages increases — whereas decreasing the value allows finer tuning.
To change the value, open alsamixer in a terminal. Press F6 and select your device. Use left/right arrow keys to select an item, and up/down arrow keys to adjust the level. When done, press Escape to exit alsamixer, and run "sudo alsactl store" to save your new settings.
Good luck!
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