math

Documentation

Index

• func DFT(input []wave.Frame) []complex128
• func FFT(input []wave.Frame) []complex128
• func HFFT(input []wave.Frame, freqs []complex128, n, step int)

Functions

func DFT

func DFT(input []wave.Frame) []complex128

DFT is a discrete fourier transformation on the input frames DEPRECATED Please use FFT unless you are sure you want this one..

func FFT

func FFT(input []wave.Frame) []complex128

FFT (Fast Fourier Transform) implementation

func HFFT

func HFFT(input []wave.Frame, freqs []complex128, n, step int)

HFFT mutates freqs!