No mp3 sound anymore

[wayne36]

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!

[Case]

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...

[wayne36]

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...

Thanks a lot for the suggestion. I don't know what VBR, CBR, or ABR modes mean, but I tried all 3 and still no sound. It was set on CBR I guess by default. I have DivX, 3ivX and Perian installed. I don't know what else to try, but since DivX Doctor II works, at least I can get sound with it! It's just driving me crazy trying to figure out what the heck happened! LOL

[Case]

what VBR, CBR, or ABR modes mean

VBR: variable bitrate: short samples get different bitrates, in accordance with their complexity. The bitrate that you set is either the maximum that will be used, or it can be ignored if the software sets a constant quality parameter at a high setting (similar to Qmin=Qmax=2 for video).
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.

It's just driving me crazy trying to figure out what the heck happened!

Hard to say, without access to your source file.