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by sjwright
5352 days ago
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> Ok so you don't like electronic dance/club music On the contrary, I really love it. I also love the cognitive dissonance which suggests that even a slight loss of fidelity in the 'inaudible bits' is far worse than a distinct loss of fidelity that occurs with an astonishingly imprecise trip through a multitude of lossy analogue processes. Or that the addition of audible hiss, wow and surface noise doesn't matter. You seem to suggest that algorithms like MP3 and AAC work primarily by throwing out the inaudible bits. A bit of that does happen, but most of the compression occurs by removing redundant data. After all, over 50% of the data can be removed before even a single bit has to change -- you can remove a shitload more if you're willing for it to be a very very very very very very close approximation instead. Psychoacoustic modelling is used to ensure that priority is given to sound that matters more over sound that matters less. |
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