Bug 359751

Summary:	Audo tracks mix incorrectly
Product:	[Applications] kdenlive	Reporter:	eezacque <eezacque>
Component:	Rendering & Export	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	RESOLVED FIXED
Severity:	normal	CC:	bugs.kde.org, virendersehwag823, wegwerf-1-2-3
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description eezacque 2016-02-24 12:42:51 UTC

Three audio tracks play at the same time. 
When the last track is muted, the second track is effectively muted too.

Reproducible: Always

Steps to Reproduce:
1. Add three tracks with audio; Video 1, Video 2, Video 3 (check they play audio together)
2. Mute track Video 3, by clicking its speaker icon

Actual Results:  
Video 1 still plays audio, Video 2 and Video 3 remain silent.

Expected Results:  
Video 1 and 2 play audio, Video 3 remains silent

The bug shows up, even if Video 1 is muted through an Audio Correction effect

Comment 1 Jean-Baptiste Mardelle 2016-02-25 11:07:17 UTC

I think this issue was fixed in Kdenlive 15.12.1
However I am not sure if you can find updated packages for Ubuntu...
will check that with packagers this week-end

Comment 2 virendersehwag823 2016-02-25 11:16:11 UTC

*** Spam comment removed by KDE Sysadmin ***

Comment 3 iGadget 2016-06-12 15:09:49 UTC

Confirmed on 16.04.1, with a few minor differences:
- When the *lowest track with content* is muted, only the 'foreground' track's audio is played.

Steps to reproduce:
1. in a default new project, fill the top 3 tracks (Video 4, 3 and 2 by default) with content that has audio.
2. Press play, notice the audio of all tracks is played back simultaneously.
3. Mute the lowest track with content (by default, Video 2)
4. Press play, notice how only the uppermost track with content (by default, Video 4) plays back audio.
5. Shorten the content in track Video 4, so that track Video 3 plays back a little longer
6. Press play, notice that as soon as track Video 4 runs out of content, track Video 3 plays back audio again
7. Fill track Audio 2 with content that has audio (and don't mute it)
8. Press play, notice the audio of all tracks (except Video 2) is played back simultaneously again.
9. Unmute track Video 2 and mute track Audio 2
10. Press play, notice how only the uppermost track with content plays back audio.

Comment 4 Jean-Baptiste Mardelle 2016-06-12 15:52:40 UTC

I think this is a duplicate of bug #353251
It should be fixed in Kdenlive 16.04.2 or git master

Comment 5 Wegwerf 2016-06-13 20:16:19 UTC

eezacque, can you please check and confirm that this bug has been fixed? If yes, I would like to ask you to be so kind as close this bug report as RESOLVED FIXED. Thank you very much!