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Originally Posted by Empty Planet  Yes, audio files comprise ones and zeros, though I find that alone a rather appalling simplification, but if there's a good reason to strip these complex phenomena down to such an analogy, I'm just not seeing it.  |
No, it's not an over simplification, it's literally true. Digitial audio is just a set of numbers that are processed in exactly the same way as other numbers. As I already stated, polarity flipping in digital audio is simply a case of inverting the sign of a given sample. Summing an audio file/stream against a polarity-flipped copy is simple mathematics:
+1 0 -1 0 +1
polarity flipped becomes:
-1 0 +1 0 -1
summed against each other becomes:
0 0 0 0 0
Clearly this is a simplification in the sense that a lot of superfluous details have been removed, but the bread and butter mathematics is exactly the same.