It's a valid concern but I think it can also be solved. Compress-decompress and compare to the original using a method not susceptible to xerox effect. If the s

It's a valid concern but I think it can also be solved. Compress-decompress and compare to the original using a method not susceptible to xerox effect. If the sound has materially changed then use a fallback method, robust but less efficient, for that particular window. But idk this may be too slow for real time.