I'm making copies of a sound file and I want to confirm by sight and sound that the original and the copy are bit-for-bit accurate. Are there any Linux audio applications that would allow me to invert a WAV file and sum it (mix it) with another file and then display the resulting waveform? If they're identical I'd get a flat line (the two would sum to silence); if not I'd hear see and hear noise. With a graphic display I'd also be able to see if there are any patterns to the errors. Thanks! Len Moskowitz
