tal , 1 month ago

I don’t know whether this is the case today, but my understanding is that while movies don’t, sadly, ship with the voice track separate, it is apparently surprisingly common to have the voice track that’s mixed in be in mono. That means that with some clever processing, it’s possible to mostly-isolate the voice from background sound.

I’d bet that fancier processing could do a better job, and searching turns up stuff like vocalremover.org .

If one can isolate the voice, then one can boost its volume relative to other audio.