it gives you possibility to control "master" "voice" "surround"

when these 3 options are on the maximum then all sounds in the mp3 are same loudly
for example you have song where the begining is quiet and then you have loudlier parts and again queit etc etc
but when you listen mp3 with matrix mixer all sounds - ALL - are same loudly
you can hear sounds that you even didnt hear before
its great thing
so i search or alternative for matrix mixer or help how to aplicate it in FOOBAR
thanks