Boost voices/dialogues in an audio file

[varunb]

Can any1 tell me how i can boost the dialog voices in a wav file ? I hav some wav files where the music is loud but the voices of the people are not. Is there any way by which i can boost the dialogues without boosting the music ? Actually the wav file is ripped from a movie trailer, so i hope u guys understand what i am trying to say.

[anonymez]

wavgain