« on: February 28, 2012, 01:00:52 PM »
Thought for a while I'd be able to trick the math of "mkvmerge --sync" into applying an offset a certain number of frames in, but that never panned out.
Ended up using Audacity, plus the ffmpeg library for Audacity to read and export AAC, and inserted the 1-second bump directly into the AAC/M4A audio file at the necessary offset. Saved the ACC audio back to the same file, then simply re-ran the mkmerge command line already in the StaxRip log to re-mux everything into a new MKV.
So not too painful, but maybe an option that could be useful if it doesn't already exist in some form. (Add/remove X milliseconds at a particular offset.)