Im not sure this is in the right forum but none of the others seemed to fit. Is it possible to take a .wav or other sound source and recode it to 5.1? If so, is there a program that will do this?
split it to 2 seperate mono channels and use vegas 4 or acid with ac3 plug in and create a 5:1 new mix or use goldwave or sound forge to create the new tracks and encode in your fav ac3 encoder .. rough guide to create 5:1 from 2ch : old left = left old right = right old left - old right(3dB down) + 15ms delay - 10dB = new left surround old right - old left(3dB down) + 15ms delay - 10dB = new right surround old left + old right - 6dB (or -10dB if no speech) = new center (there are some inverting options you can also do here to pick out more the speech center) old left + old right + 18dB per octive filter centered at 180Hz (crossover, your wave form will look like this "~~~~~\ ___________________" ) + 2dB @ 80Hz .7 octive wide + 3db @ 180Hz .8 octive wide = new subwoofer channel "-" means to take away .. "+" means to add .. With CoolEdit: Front (L/R)= Old(L/R) with VocalCut applied Center =Old(L+R)+3dB amp LFE=Center Low-Pass with 250Hz cutoff Rear(L/R)=(Old(L-R)+echochamber)-6dB
