On Tue, Dec 05, 2006 at 23:54:03 +0100, Thomas Sattler wrote: > I've read the manpage two times now. soxmix is able to mix two different > audio files into one but all I got until now is both languages totally > mixed up in a stereo file. Maybe sox is unable to seperate them, maybe > my english is just not good enough to understand the manpage. You might need to do this in two steps - a first step to put both channels of one language to only 1 channel, a second step to mix both channels. I think the effect "avg" might help.