I tried to use kdenlive to change the aspect ratio of a video, this is the original file: 

Stream 0
Video, Codec: MPEG-4 Video (XVID), Resolution: 640x272
Frame rate: 23.976044, Decoded format: Planar 4:2:0 YUV

Stream 1
Type: Audio, Codec: MPEG Audio layer 1/2/3 (mpga)
Channels: Stereo, Sample rate: 44100 Hz, Bitrate: 112 kb/s

The lenght of the video is 02:18:04 (138 minutes)

I tried to render to the same format but changing resolution for 640x360, so I applied a "crop" effect.

When I preview the video in a timeline, I can't detect any problem with audiosync. Even I exported "sections" of the video using "guides", and I can't detect any sync problem either.

But when I export the whole video, the audio is out of sync for some seconds.

I'm using Lubuntu 12.10 with kdenlive 0.9.2, Thanks.


Antonio Rojas Soto
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