audio volume normalize

[CONAN]

i have on hd my own film from holidays. Now i want to add to avi my voice with commentary. I records commentary in 15 parts , because film is very long and when i want to record commentary in one part i'm doing lots of errors ).
and now is my problems. Some parts of this commentary are loudly then other!!!! and i want to change all parts of my waves to the same volume????

help me )

sorry for my english

[Dr Evil]

CONAN,
You should be able to download a free trial version of CoolEdit Pro 2000. This software will allow you to first join all of the audio clips together, then normalize the entire audio. You can also do cool stuff like remove background hiss, noise, etc...

[VidGuy]

The problem is that you really don't want to normalize all the parts together - normalization won't work if one of the parts is loud and the others are soft. Normalization increases all audio by the same percentage to use up all available "volume" without clipping. What you need to do is load all of the parts into cooledit, then "amplify" the ones that are too small (you should be able to tell by looking at the amplitude of the waves on the screen) - what you want to do is normalize each of your 15 commentaries separately, then join them together with the film.