How to do dynamic compression on audio

[buch75]

I would like to use Cooledit's dynamic compression to lower the highs and raise the lows on the volume on some movies. Some are avi files and some I've already converted to mpgs. I'm not sure how you separate the audio from the video so I can just work on the audio part, and can I do this with both avis and mpgs?

Ed

[Baldrick]

you demultiplex the audio and then multiplex it back.
www.vcdhelp.com/faq#multiplex
www.vcdhelp.com/faq#demultiplex

[CryptKeeper]

so what you're trying to do is Normalize the audio?

[House de Kris]

No, he is trying to compress the dynamics, not normalize.

[buch75]

For some reason, some movies make the action scenes very loud, and the dialog quiet, so I have to turn the volume on the TV way up to hear the dialog, but then the music blasts during the action scenes. My wife is always yelling at me to turn down the volume. The Tarzan Disney movie is a good example. I tried using TMPGEnc to Normalize the volume, but that didn't help. I think what I need is Dynamic Compression. I've tried Cool Edit, and that looks like it will do what I need, if I can just figure out how to use it! Anyone know if I can just use one of the Cool Edit presets to do what I want?

Ed

[CryptKeeper]

so then you're trying to normalize the audio

to get a constant loudness from it

cooledit isn't that good a program

I'd tried it and the first time I loaded a wav file and normalized it
it ran great!
brought all the low peaks to 100% and the high peaks remained at 100%

tho the next time I tried to normalize another wav file, it just brought the highest peaks to 100% and brought the low peaks just a little higher

still can't figure out why it did that

and if I could, I'd be able to tell you, exactly what to do to get your audio file normalized