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Tags: sound   pulseaudio   alsa  
Link: πŸ” See Original Answer on Ask Ubuntu πŸ”—

URL: https://askubuntu.com/q/1025066
Title: 5.1 sound - rear left & right are very quiet - DOWNMIX
ID: /2018/04/14/5.1-sound-rear-left-_-right-are-very-quiet-DOWNMIX
Created: April 14, 2018    Edited:  June 13, 2022
Upload: November 24, 2022    Layout:  post
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New version using pavucontrol

First install the app:

sudo apt install pavucontrol

Then call it from the launcher by typing the first few letters pav and selecting the icon. Follow the .gif below to click on the individual speakers and set their volume:

pavucontrol individual speaker volume

Original version not working

Your question β€œWhat kind of malformed wizardry is this?” can best be answered with this command:

$ grep channels /etc/pulse/daemon.conf
; default-sample-channels = 2

Using sudo powers edit the file /etc/pulse/daemon.conf and change the line:

; default-sample-channels = 2

to:

; default-sample-channels = 6

Save the file and exit your editor. To restart pulse audio use:

pulseaudio -k
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