[FFmpeg-user] problem with audio/video sync after conversion

Roger Pack rogerdpack2 at gmail.com
Fri Jun 22 20:13:52 CEST 2012

>> /usr/bin/ffmpeg -i infile.mp4 -f mp4 -vcodec libx264 -vpre medium -acodec libfaac -g 15 -r 15 -b:v 360k -ar 22050 -b:a 48k -async 2 -vsync 1 -s 512x288 -t 900 outfile.mp4 2>&1
> Have you tried with 44Khz audio?

Other possibilities:

use "CBR instead of VBR" (not sure what libfaac uses).  Maybe try
another aac codec?

maybe a different version of flash player:
http://forums.adobe.com/message/4331476 and

and "add white noise" http://forums.creativecow.net/thread/3/911682


More information about the ffmpeg-user mailing list