https://bugs.kde.org/show_bug.cgi?id=379033
Bug ID: 379033
Summary: Timeline Audio Waveform Delayed by About 100ms
Compared with Image of Speaker
Product: kdenlive
Version: 16.12.3
Platform: Kubuntu Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: sbc_hates_s...@yahoo.com.au
Target Milestone: ---
Created attachment 105126
--> https://bugs.kde.org/attachment.cgi?id=105126&action=edit
This example shows the Rendered mp4 file with the Camera MTS file.
I have Kdenlive 16.12.3 on Kubuntu 17.04 with KDE plasma 5.9.4 and Frameworks
5.31. The problem described below also occurred on Kubuntu 16.10 with the same
version of Kdenlive.
When I load MTS camera files from the same camera, the audio timeline is
delayed by about 100ms from the image of the speaker. Using the camera audio
with the image there is no problem with this waveform delay.
However, I need to load an audio file from the sound desk and create an mp3
audio file which gives better quality than that recorded by the camera. The
problem is that when I use the audio timeline waveform to sync with the camera
waveform the sound is out of sync with the image and I have to advance it by at
least 100ms.
This problem occurs randomly on MTS files. I was originally thinking that it
was a problem associated with copying files, but because I could reproduce this
problem I now think it is with Kdenlive.
To illustrate this problem, I rendered the Camera MTS file as a mp4 file. I
then put both files into Kdenlive and they play in unison with the exception
that the audio timeline waveforms are displaced.
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