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I had something like this in my mind, but I've never tried it. In a DAW, duplicate the transferred audio on two parallel tracks. Flip one out of phase and mute it during the desired audio. During moments of print-through, fade up the other track. It hopefully will cancel the echo, but only minimally effect the uncorrelated tape hiss. You might filter the second track to concentrate its effect on the particular band(s) causing trouble, in order to minimize weird coloration of the hiss or ambience spectrum. Would that actually work in practice? Labor intensive, but there might be a way to semi-automate those crossfades. Otherwise, maybe Malcolm's idea of working from full-volume signals is more effective. If somebody will upload some test audio, I'll give it a try. None of my tape machines work right now... If science doesn't work, offsetting the second track enough to overlap background during the moments of echo would make for an easy way to crossfade to non-echo moments, yet have consistent background noise spectrum at those moments. Much easier than editing-in clips of noise/ambience, while the shape of the crossfades can be used to smooth the transitions. Multitrack is very useful in ways beyond just mixing tracks in the conventional sense. -----Original Message----- From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Malcolm Rockwell Sent: Thursday, October 24, 2013 10:51 PM To: [log in to unmask] Subject: Re: [ARSCLIST] Advice needed on removing / minimizing tape bleed-through There may not be a major problem here. What has printed through is the audio from the next layer of tape, correct? With digital manipulation being what it is today it should be simple enough to grab the full volume layer of audio, attenuate it, flip the waveform and apply it "over" the printed through signal. There will probably be artifacts but if you fiddle with various parameters for a while, such as EQ, you will probably be able to find an acceptable solution to your problem. I'd apply this to softer passages and leave louder material well enough alone, though. It's worth a try. Comments? Malcolm