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Old 12-29-2016, 07:44 AM   #38
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Originally Posted by Xenakios View Post
That sounds like normal FFT where increasing the analysis size gives more resolution in the low frequencies, but of course needs more data per analysis frame. (Therefore the slower response.)
Agreed. Perhaps they're using 1024 for high frequencies and progressively increasing to something like 32,768 for the lowest frequencies.
The point behind all this is that this is doable and capable of running usefully in realtime even on old equipment running very slow (by today's standards) processing.
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