Bug 359475

Summary:	Rendering audio fragment from long clip does not work.
Product:	[Applications] kdenlive	Reporter:	eezacque <eezacque>
Component:	Rendering & Export	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	RESOLVED WAITINGFORINFO
Severity:	normal	CC:	wegwerf-1-2-3
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description eezacque 2016-02-16 18:24:52 UTC

I am using a short (30 seconds) fragment near the end of a long (1 hour, 44 minutes) audio clip.
Preview plays okay, but rendering yields a low rumbling sound, like the original at a low pitch.
Picking a fragment closer to the beginning works fine.
Cutting the audio clip in kdenlive doesn't work.
Cutting the audio clip in audacity works.

Reproducible: Always

Steps to Reproduce:
1. Import a wav audio clip, at least 1 hour, 44 minutes, and include it in the timeline
2. Render a zone from 1:40:00-1:40:30
3. Play the resulting video file

Actual Results:  
The start of the video is a low-pitched rumbling, later on it seems to catch up and play ok.

Expected Results:  
I expect the audio to play normal, as in preview, ot any other audio player.

Comment 1 Wegwerf 2016-08-12 15:19:33 UTC

eeuacque, can you please so kind as to check if this problem is still present with recent stable Kdenlive 16.04.2 and MLT 6.2.0+ at least? If not, please be so kind as to close this bug report. If the bug is still present, you you please supply a minimized Kdenlive project that triggers the bug. If you render using a rendering script, does the problem still persist? If yes, I would assume that this is in fact an upstream MLT bug, so I would ask you to file a bug report with the MLT project then, as it wouldn't be a Kdenlive bug. Thank you very much for your cooperation!