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#1 2016-11-30 07:38:30

mikro
Member
Registered: 2011-01-10
Posts: 5

Reverse stereo lowers volume by 50%

I purchased speakers with very short cables which are best placed on my desk if the left speaker is on the right and vice versa. Naturally, I'd like to switch left/right channels in software so I have proper stereo output.

I found a few tutorials for pulse audio, namely adding following two lines into /etc/pulse/default.pa:

load-module module-remap-sink sink_name=reverse-stereo master=1 channels=2 master_channel_map=front-right,front-left channel_map=front-left,front-right
set-default-sink reverse-stereo

Good news is that it works. Bad news is that volume in all apps is about (exactly?) half even if all the sliders in the mixer are to the max, same for the slider in VLC for instance. Even pactl output reports 100% volume level. As soon as I remove those two lines, sounds is as it should be, it switches back to 50% and I can increase it again.

Any idea what's wrong here?

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#2 2016-11-30 13:06:09

qinohe
Member
From: Netherlands
Registered: 2012-06-20
Posts: 1,494

Re: Reverse stereo lowers volume by 50%

Volumes are handeled globaly (default), not per application, you can try

flat-volumes = no

see man pulse-daemon.conf or wiki.
I don't know if this solves your innitial problem, but, by decopling from master volume, you might be able to do just that

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