Strange problem with music - please help!

[B.M.]

Thank you for your idea, but I don't think I'm using it, just the volume 
effect.

BUT: I noticed something and now I'm at least one step further!

If I start kdenlive by opening a project file from within dolphin, music plays 
fine.

If I start kdenlive by clicking on my desktop icon, via the start menu or by 
executing /usr/bin/kdenlive from within konsole it doesn't work. Unfortunately 
I cannot blame firejail because executing /usr/bin/kdenlive bypasses it 
completely.

That's also the reason why I had the impression that it sometimes worked, but 
most of the time it didn't...

systemsettings -> applications shows "kdenlive %U" for mimetype x-kdenlive, as 
does my desktop icon. I'm not sure what exactly dolphin is doing.

It's still strange and I'm definitely interested in the reason for that 
behaviour, but at least I have now a workaround :-)

Bernd


On Dienstag, 19. März 2019 13:57:58 CET farid abdelnour wrote:
> Hi replying quickly from phone. Are you by any chance using the gain
> effect? Could you try to disable it if so and test.
> 
> Em ter, 19 de mar de 2019 06:18, B.M. <b-misc at gmx.ch> escreveu:
> > Well, now I have the same problem with the second user as well. Most of
> > the
> > 
> > time it doesn't work, but once yesterday it did work:
> > 
> > 
> > 
> > First I started rendering of my 1h movie, but music was missing entirely
> > 
> > (although it played fine before and a short testfile did play as well as
> > render
> > 
> > fine before).
> > 
> > 
> > 
> > After the render had finished and I'd noticed the missing audio, I somehow
> > 
> > could at least render just the audio to a wav file, including all music
> > clips.
> > 
> > I than just replaced the audio in the mp4 using ffmpeg.
> > 
> > 
> > 
> > But: today, when I wanted to correct a few minor things in the whole
> > movie, I
> > 
> > could open the project with working music, neither for my user neither for
> > 
> > yesterday's.
> > 
> > 
> > 
> > I already removed all config and cache files named *kdenlive*...
> > 
> > Any hint where I can look at?
> > 
> > 
> > 
> > Thank you so much!
> > 
> > Bernd
> > 
> > On Montag, 18. März 2019 08:43:05 CET B.M. wrote:
> > > I'm one step further now:
> > > 
> > > If I open the project file with kdenlive started by another user it
> > > works
> > > 
> > > fine. So there has to be a problem with my kdenlive settings files (not
> > > 
> > > project settings/project file).
> > > 
> > > 
> > > 
> > > Bernd
> > > 
> > > Am 16. März 2019 10:29:52 MEZ schrieb "B.M." <b-misc at gmx.ch>:
> > > >Hi list
> > > >
> > > >
> > > >
> > > >I'm encountering a really strange problem with kdenlive - steps to
> > > >
> > > >reproduce
> > > >
> > > >it:
> > > >
> > > >
> > > >
> > > >Create new project (HD or, QHD, doesn't matter)
> > > >
> > > >Add audio to project bin (e.g. flac 44100 Hz or wav 48000, doesn't
> > > >
> > > >matter)
> > > >
> > > >Play audio: it works
> > > >
> > > >Add it to an audio track: it works
> > > >
> > > >Save file
> > > >
> > > >Restart kdenlive
> > > >
> > > >Open project file
> > > >
> > > >Play audio clip in timeline or project bin: it doesn't work, i.e. I
> > > >
> > > >cannot
> > > >
> > > >hear any sound
> > > >
> > > >Remove audio clip from project file (and timeline)
> > > >
> > > >Re-add it to project bin: it plays normally
> > > >
> > > >Re-add it to the timeline: it plays
> > > >
> > > >
> > > >
> > > >But note: if I add video clips (which include audio as well), they work
> > > >
> > > >as
> > > >
> > > >expected. So in my main project (not this minimalistic test project),
> > > >
> > > >all
> > > >
> > > >audio tracks work except the music audio track.
> > > >
> > > >
> > > >
> > > >Version: 18.08.2 on Debian stable, but it doesn't matter - app image
> > > >
> > > >17.12.0d
> > > >
> > > >doesn't work either.
> > > >
> > > >
> > > >
> > > >Any hint, where to look at?
> > > >
> > > >
> > > >
> > > >Best regards and thanks a lot for your help,
> > > >
> > > >Bernd