> you might still get artifacts Made me think, what about audio compression? Psychoacoustic algorithms might want to alter the signal, or cut off the some of t

> you might still get artifacts Made me think, what about audio compression? Psychoacoustic algorithms might want to alter the signal, or cut off the some of the frequencies entirely. This could make the record neither valid nor invalid according to this method, since the hum would be too altered to be a valid information source.