Fft Class Reference

#include <Fft.h>

Public Member Functions
	Fft (unsigned int length)
int	setup (unsigned int length)
void	cleanup ()
void	fft ()
void	fft (const std::vector< float > &input)
void	ifft ()
void	ifft (const std::vector< float > &reInput, const std::vector< float > &imInput)
float &	fdr (unsigned int n)
float &	fdi (unsigned int n)
float	fda (unsigned int n)
float &	td (unsigned int n)

Static Public Member Functions
static bool	isPowerOfTwo (unsigned int n)
static unsigned int	roundUpToPowerOfTwo (unsigned int n)

Detailed Description

A real-to-complex FFT and complex-to-real IFFT. This is a wrapper for the libne10 FFT.

Examples

Gui/frequency-response/render.cpp.

Member Function Documentation

fft() [1/2]

void Fft::fft

(

)

Perform the FFT of the signal whose time-domain representation is stored internally.

fft() [2/2]

void Fft::fft

(

const std::vector< float > &

input

)

Perform the FFT of the signal whose time-domain representation is passed as an argument.

ifft() [1/2]

void Fft::ifft

(

)

Perform the IFFT of the internal frequency-domain signal.

ifft() [2/2]

void Fft::ifft	(	const std::vector< float > &	reInput,
		const std::vector< float > &	imInput )

Perform the IFFT of the signal whose frequency-domain representation is passed as arguments.

fdr()

float & Fft::fdr ( unsigned int n )

inline

Get the real part of the frequency-domain representation at index n.

fdi()

float & Fft::fdi ( unsigned int n )

inline

Get the imaginary part of the frequency-domain representation at index n.

fda()

float Fft::fda ( unsigned int n )

inline

Get the absolute value of the frequency-domain representation at index n. The value is computed on the fly at each call and is not cached.

td()

float & Fft::td ( unsigned int n )

inline

Get the time-domain representation at index n.

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The documentation for this class was generated from the following files:

• libraries/Fft/Fft.h
• libraries/Fft/Fft.cpp