Doesn't sound like anything to me, I wonder if it'd be possible to develop an app that takes two audio files, an audio with constant noise and a speech sample of similar length and applies some basic filters like that in a certain sequence to produce a file that could most be mistaken for the speech in the second audio.
I remember having something like that for numerology to troll people by claiming they are 666 supersatans, with proof!
I remember having something like that for numerology to troll people by claiming they are 666 supersatans, with proof!