Bug 385250

Summary: Cannot change volume per channel
Product: [Unmaintained] plasma-pa Reporter: OlafLostViking <olaf.the.lost.viking>
Component: generalAssignee: David Rosca <nowrep>
Status: RESOLVED FIXED    
Severity: wishlist CC: karl, nicolas.fella, plasma-bugs-null, yanp.bugz
Priority: NOR    
Version First Reported In: 5.10.5   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: https://invent.kde.org/plasma/plasma-pa/-/commit/12c07e355b8cebaea61413bd870e27904b3eada6 Version Fixed/Implemented In: 5.20.0
Sentry Crash Report:
Attachments: Pavucontrol with channels locked
Pavucontrol with channels unlocked

Description OlafLostViking 2017-09-30 23:34:34 UTC 
plasma-pa cannot (or, to be fair, I cannot find it ;-) ) change the volume per channel (like left 10% louder than right) as pavucontrol or kmix can. As plasma-pa is meant to substitute kmix, this would be a regression, which makes using headphones quite unpleasant for people with hearing problems. For now I installed pavucontrol and showed the affected person how to use it. But that's merely a workaround.
Comment 1 Karl Ove Hufthammer 2018-10-28 11:15:46 UTC 
Confirming. I think the implementation used in pavucontrol is a good solution. By default, the channels are locked. But if you press a padlock key, a separate slider is shown for each channel. I’ll attach a couple of screenshots.
Comment 2 Karl Ove Hufthammer 2018-10-28 11:16:17 UTC 
Created attachment 115941 [details]
Pavucontrol with channels locked
Comment 3 Karl Ove Hufthammer 2018-10-28 11:16:52 UTC 
Created attachment 115942 [details]
Pavucontrol with channels unlocked
Comment 4 Christoph Feck 2019-09-30 00:10:26 UTC 
*** Bug 411495 has been marked as a duplicate of this bug. ***
Comment 5 Nicolas Fella 2020-11-10 00:32:17 UTC 
This has been implemented in Plasma 5.20