Stereo WAV -> Mono WAV DLL?

[Qjimbo]

Hey all,
I'm writing a program in Delphi and I need to add the ability to convert a Stereo wav file to a Mono one, preferably by mixing both channels together. Does anyone know any DLL's that can do this that I could call as an external command? Or how I could code this in Delphi?
Thanks!

[Qjimbo]

Ah no worries, I ended up simply using SoX (http://sox.sourceforge.net/) from the command line, works like a charm :)