Extracting frequencies from a wav file
I didn't know where to post this but here goes.
I'm re-mixing an album for my friend using Sony's Sound Forge Audio Studio and several other tools. However I really need access to the tracks in the song and all I have is the final mix.
Is there a way to extract the separate tracks from the final mix? Also can I write something in C to extract data within a certain frequency range and if so how do I convert from sample value to actual frequency??
It would be nice too, to be able to write my own mixer and my own frequency readout displays that show me exactly what is going on in the music. But I'm not sure how to convert a value like 16500 into a 20 band frequency readout. FFT perhaps?