Src Algorithms Comparison Website

Interpolation is about data that never was recorded at all, so you can’t speak of “original” data here. It is simply data that is missing between two points and is filled in by an educational guess using an algorithm.
If the analogue source that got recorded would have supplied some kind of crackle between those two sample points at 44Khz or 22Khz, the interpolated data at the higher frequencies would be incorrect as well because algorithms are not foreseeing these situations.