I've used ffmpegx for months and I love it! I have QuickTime Pro. I moved to a new house and changed nothing but my ISP. Now, all of a sudden, when I convert an AVI file with .aac audio to an AVI DivX file with .mp3 audio, I have no sound playing through QuickTime Pro. I've tried reinstalling all software and components, but it didn't help. I can't figure out what when wrong by just changing houses. Is it a QuickTime problem? When I use DivX Doctor II, the .mov file and sound is fine. I like ffmpegx better, but I can't use it anymore! Does anyone have any suggestions that I can try? Thanks a lot!
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Could it be that the mp3 was set in VBR mode? If so, try CBR. Perhaps vanilla QuickTime has trouble with VBR.
It might be that a 3rd party DivX component (DivX®/3ivX/Perian) helps QuickTime deal with VBR mp3 audio, 'cause I haven't had such issues since OS 9...
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Originally Posted by Case
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Originally Posted by wayne36
CBR: constant bitrate: short samples all get the same bitrate, regardless of complexity, even silence.
ABR: average bitrate: a form of VBR: short samples get different bitrates, in accordance with their complexity. The bitrate that you set is the average that will be used.
In general, CBR is very predictable on a timeline, and that helps in keeping sync with other streams (such as video).
And support in players is often better with CBR.
Originally Posted by wayne36
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