Bug 434337

Summary: When I mute a mike no sound is recorded at all
Product: [Plasma] plasmashell Reporter: Dmitri Koulikoff <kde>
Component: Microphone Indicator widgetAssignee: Kai Uwe Broulik <kde>
Status: RESOLVED NOT A BUG    
Severity: grave CC: nate, plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.21.2   
Target Milestone: 1.0   
Platform: Slackware   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Dmitri Koulikoff 2021-03-12 18:59:04 UTC 
SUMMARY

  I'm recording our daily meetings. I use SimpleScreenRecorder. If I mute my microphone, no sound is being recorded at all.


STEPS TO REPRODUCE
1. Open any video chat in a browser.
2. Be sure the microphone icon has appeared.
3. Start video capturing the screen with the sound.
4. Mute the mike and wait a little.
5. Stop recording and replay it.

OBSERVED RESULT

  There is no sound after the mike is off.


EXPECTED RESULT

  The sound must be recorded.


SOFTWARE/OS VERSIONS
Operating System: Slackware-current
KDE Plasma Version: 5.21.2
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2
Kernel Version: 5.10.22
OS Type: 64-bit
Graphics Platform: X11
Processors: 12 × Intel® Core™ i7-9750H CPU @ 2.60GHz
Memory: 31.1 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 630 

ADDITIONAL INFORMATION
Comment 1 Nate Graham 2021-03-16 03:03:45 UTC 
Since the video's sound is being played through the speakers, the microphone is being used to record it, so muting it prevents this from working.

What I think you want to do here is pass the computer's own sound output into the recording app as an input, internally, without using the speakers at all. That will allow you to mute your computer's microphone, but have the recording app still "hear" sound from the video.
Comment 2 Dmitri Koulikoff 2021-03-16 06:19:52 UTC 
(In reply to Nate Graham from comment #1)
> Since the video's sound is being played through the speakers, the microphone
> is being used to record it, so muting it prevents this from working.

Thanks, it seems there is a bug in SSR.