This might sound like a *really* odd question, but here goes. I'm also looking for a strictly command-line program. I have some old tapes that I'm converting to MP3s so I can get rid of the old cassettes. One of these is a tape on which I can't stand the sound of my own voice. If such a program exists, I'd love to be able to feed my voice into the program and then have it filtered out, or at least obscured from, the recording. Am I shooting at the moon or can this be done? Thanks Terrence