https://bugs.kde.org/show_bug.cgi?id=427507
Bug ID: 427507
Summary: Multi-track audio gets distorted when changing gain in
the tracks properties
Product: kdenlive
Version: 20.08.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Effects & Transitions
Assignee: vpi...@kde.org
Reporter: s...@0x7be.de
Target Milestone: ---
When im porting a video with multi-track (here: a video with two audio tracks)
audio both of the tracks are imported and are shown individually when dragging
the clip to the time line. This works as expected. It is also possible to set
individual volume to the tracks via “rightclick -> Insert an effect -> Volume
(keyframable)”. This also works as expected.
The problem is, when I try to set the audio track’s “master volume” by clicking
the imported clip, and switching to the audio tab in the clip’s properties and
selecting the audio track in question and then change gain to any value the
audio gets heavily distorted. It sounds a bit like extreme volume but clipped
to some level. Even when setting the value to 0db again the audio stays
distorted.
STEPS TO REPRODUCE
1. Import a video with multiple audio tracks
2. Add the clip to the timeline
3. Play around with the gain setting of the clip’s audio track
OBSERVED RESULT
At some random point the audio gets heavily distorted (or set to an extremely
high volume and gets clipped) and stays like that until Kdenlive is restarted
and/or the clip is re-imported.
EXPECTED RESULT
Gain is applied to the track without distorting it.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Linux 5.8.13-arch1-1 x86_64 (uname -rms)
KDE Plasma Version: [not using KDE as my DE]
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
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