Not quite the same thing, but videogrep https://github.com/antiboredom/videogrep https://github.com/antiboredom/videogrep works along, audio -> ASR -> timed tra

Not quite the same thing, but videogrep https://github.com/antiboredom/videogrep https://github.com/antiboredom/videogrep works along, audio -> ASR -> timed transcript -> text search, lines.