Are you saying that a cryptographic signature could survive postprocessing? Well, it may, but when you post-process a sound clip, that sound changes itself. I m

Are you saying that a cryptographic signature could survive postprocessing? Well, it may, but when you post-process a sound clip, that sound changes itself. I mean, imagine playing cutups with a dialogue track; that actor may or may not want to attest that the final result is theirs. That's the whole thing. If you cut out three words of dialogue, it is no longer cryptographically signed.