Well this is a first! Man, just can't get rid of Protools... @^#%@$#%@&^%!!!!! Interesting suggestion Byre, except that would be a bigger alteration of the source material than the artifact in question. That's the kind of non-perfect workaround you had to do 15 years ago. Happened to be working on a 24/96 4.0 flac file too. Convert to wav, convert to mono, import into protools, swear at protools, draw out the things, interleave the files with Wave Agent, convert to flac... and we're back. Ornery...