dplug.dsp.fft

Members

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.

Structs

FFTAnalyzer

struct FFTAnalyzer(T)

From a signal, output short term FFT data. Variable overlap. Introduces approximately windowSize/2 samples delay.

Segmenter

struct Segmenter(T)

From a signal, output chunks of determined size, with optional overlap. Introduces approximately windowSize/2 samples delay.

ShortTermReconstruction

struct ShortTermReconstruction

From short term windowed data, output the summed signal. Segments can be irregular and have different size.

• delayline
• envelope
• fft
• fir
• iir
• noise
• rfft
• smooth
• wavetable
• window