dplug.fft.fft

High-level interfaces for providing FFT analysis, real FFT, and resynthesis from grains.

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Enums

FFTDirection enum FFTDirection: Undocumented in source.

Functions

convertFFTBinToFrequency float convertFFTBinToFrequency(float fftBin, int fftSize, float samplingRate): Converts a FFT bin to a frequency.
convertFFTBinToFrequencyInv float convertFFTBinToFrequencyInv(float fftBin, float invFFTSize, float samplingRate): Converts a FFT bin to a frequency.
convertFFTBinToNormalizedFrequency float convertFFTBinToNormalizedFrequency(float fftBin, int fftSize): Converts a FFT bin to a normalized frequency.
convertFFTBinToNormalizedFrequencyInv float convertFFTBinToNormalizedFrequencyInv(float fftBin, float invFFTSize): Converts a FFT bin to a normalized frequency.
convertFrequencyToFFTBin float convertFrequencyToFFTBin(float frequencyHz, float samplingRate, int fftSize): Converts a frequency to a FFT bin.
convertFrequencyToFFTBinInv float convertFrequencyToFFTBinInv(float frequencyHz, float invSamplingRate, int fftSize): Converts a frequency to a FFT bin.
convertNormalizedFrequencyToFFTBin float convertNormalizedFrequencyToFFTBin(float normalizedFrequency, int fftSize): Converts a normalized frequency to a FFT bin.
forwardFFT void forwardFFT(Complex!T[] buffer): Perform in-place FFT. Equivalent to std.numeric.fft, but this one is nothrow @nogc.
inverseFFT void inverseFFT(Complex!T[] buffer): Perform in-place inverse FFT. Equivalent to std.numeric.inverseFft, but this one is nothrow @nogc.
minimumPhaseImpulse void minimumPhaseImpulse(T[] inoutImpulse, Complex!T[] tempStorage): From an impulse, computes a minimum-phase impulse Courtesy of kasaudio, based on Aleksey Vaneev's algorithm See: http://www.kvraudio.com/forum/viewtopic.php?t=197881 MAYDO: does it preserve amplitude?
tempBufferSizeForMinPhase int tempBufferSizeForMinPhase(T[] inputImpulse)

Structs

FFTAnalyzer struct FFTAnalyzer(T): From a signal, output short term FFT data. Variable overlap. Introduces approximately windowSize/2 samples delay. Uses a real FFT to gain some speed.
RFFT struct RFFT(T): Perform a FFT from a real signal, saves up CPU.
Segmenter struct Segmenter(T): From a signal, output chunks of determined size, with optional overlap. Introduces approximately windowSize/2 samples delay.
ShortTermReconstruction struct ShortTermReconstruction(T): From short term windowed data, output the summed signal. Segments can be irregular and have different size.

dplug.fft.fft

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