Arch Linux

LNZ

Member

Registered: 2020-03-25

Posts: 2

Microphone records everything, including system's audio

I'm using arch linux with KDE plasma and every time I record something with my microphone or try to call a friend on discord (or Google Hanghouts) my friends can hear what's happening on my pc (system sounds, game audio ecc...). Switching microphone doesn't fix the problem.

uname -a:
Linux arch 5.5.11-arch1-1 #1 SMP PREEMPT Sun, 22 Mar 2020 16:33:15 +0000 x86_64 GNU/Linux

I apologize for the trouble and for eventual grammatical errors, english is not my first language. Thank you in advance.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,365

Re: Microphone records everything, including system's audio

Post

aplay -l
amixer -c$correct index number from aplay$
dmesg | grep snd
#If using pulse, and during active recording
pacmd list-cards
pacmd list-sources

in [ code ] [ /code ] tags without the spaces.

LNZ

Member

Registered: 2020-03-25

Posts: 2

Re: Microphone records everything, including system's audio

aplay -l
dmesg | grep snd
amixer -c 1
pacmd list-cards
pacmd list-sources

Last edited by LNZ (2020-03-25 19:44:55)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,365

Re: Microphone records everything, including system's audio

Whoops forgot to mention the

pacmd list-source-outputs

From what we see so far most things look in order. Loopback Mixing is disabled and on pulse's side the monitor source is not used. So from a system/software perspective there doesn't seem to be anything actively leading to a loopback of pc sounds. Can you reproduce this yourself with a test call? Maybe generally lower the capture volume on the mic. The only thing I see of relevance though the associated Mic control seems to be muted might be that the front mic boost is on full blast that's often not what you want:

amixer -c1 set 'Front Mic Boost',0 0