If your voice is within a different frequency range you may be able to EQ it out... If it is in a form of a normal conversation and not two voices at the same time all you need do is get a good editor and simply cut out what you don't what. I've been cutting out 'clicks' from old 78 Rpm recording that way... I just magnify the visual sound... and high light the 'click' and edit it to silence... Audicity works well for that sort of thing... later vince ka1iic vincewerber.org On Friday 09 March 2007 20:19, terrence@xxxxxxxxxxxxxxx wrote: > Hmm, actually I think the input was a mono source, so that might > not work after all. > > Terrence