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IDProjectCategoryView StatusDate SubmittedLast Update
0002974KdenliveRenderingpublic2013-02-03 04:582013-09-13 03:44
Assigned To 
Platform64 bitOSUbuntuOS Version12.10
Product Version0.9.4 
Target VersionFixed in Version 
Summary0002974: Choppy Audio and Artifacts with Rescale
DescriptionWhen scaling a video during rendering and using low bitrate audio (ie. 64kpbs), the audio in the rendered file stutters badly and is choppy. This occurs with both vorbis and AAC. It was tested with multiple players including VLC, Totem, and Mplayer. I extracted the audio from the resulting file and confirmed the problem with Audacious as well. Rescale is not usable like this. Upon increasing the bitrate (ie. 128kbps), the audio is smoother but there are many noticeable artifacts like pops and clicks. This does not happen when rescale is not used.
Steps To ReproduceRender a video with audio bitrate at 64kbps and scale down to a lower resolution.
Additional InformationProfile: f=matroska acodec=aac ab=%audiobitrate+'k' pix_fmt=yuv420p vcodec=libx264 crf=30 preset=slower tune=film subq=10 bf=5 refs=6 aspect=%dar
TagsNo tags attached.
Build/Install Method3rd party package
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kenske (reporter)
2013-09-13 03:44

Looks like this may have been fixed in 3061

- Issue History
Date Modified Username Field Change
2013-02-03 04:58 klaxian New Issue
2013-09-13 03:44 kenske Note Added: 0009608

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