FFDSHOW and AC-3 ACM

Hey,

I’m trying to get FFDshow to work with a .avi. the avicodec says this about the audio:
448 Kbps, 48000 Hz, 5 channels, 0x2000 = AC-3 ACM Codec, CBR, , Supported

And i was wondering how do i get FFDshow to decode this so i can get higher volume.

Get the free ac3dec, then adjust the prefs.