How to increase sound in an AC3 movie

First, my apologies if my english is not too good. :D :D

I have a trouble with a movie with AC3 audio compression. The sound is too low and all volume controls (the one in windows, the bsplayer one) are on 100%. Now comes my question: I would to know if exists some type of equalyzer (inside bsplayer) so i can increase up the volume output of the movie.

NOTE: I actually use the version 0.86 build 494. Does that i'm looking for exist in later versions of bsplayer?

Thanks and "hello" from Spain :D

[adicoto]

No, but install ac3filter. it can do that.