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SWDFT vs. ColorChord
Автор: error
Загружено: 2020-10-25
Просмотров: 279
Описание:
Single bin Sliding Window DFT (sb-SWDFT)
Music: Tycho - Weather
My color key = 440 Hz
LUMI keyboard color key = 280 Hz (slightly offset, no green color)
ColorChord key = 275 Hz (reverse HSV)
https://github.com/cnlohr/colorchord
My program uses numerically-stable DFT with 16 bit/sample precision and resambles rectangular window.
ColorChord is unstable infinite impulse response filter (IIR) that produces geometric progression window.
My sbSWDFT runs at 10% CPU while skippy integer (4) ColorChord runs at 25%*.
Edit: * - because of CPU graphics rendering
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