BlackmanNuttall Class Reference

BlackmanNuttall FFT Window function. More...

#include <FFTWindows.h>

Inheritance diagram for BlackmanNuttall:

Public Member Functions
	BlackmanNuttall ()=default
virtual void	begin (int samples)
	Setup the window function providing the fft length.
float	factor (int idx)
float	factor_internal (int idx) override
const char *	name () override
int	samples ()
	Provides the number of samples (fft length)

Protected Member Functions
float	ratio (int idx)

Protected Attributes
const float	fourPi = 12.56637061f
int	i_half_samples = 0
int	i_samples = 0
float	samples_minus_1 = 0.0f
const float	sixPi = 18.84955593f
const float	twoPi = 6.28318531f

Detailed Description

BlackmanNuttall FFT Window function.

Author

Phil Schatzmann

Copyright

GPLv3

Constructor & Destructor Documentation

BlackmanNuttall()

BlackmanNuttall ( )

default

Member Function Documentation

begin()

virtual void begin ( int  samples )

inlinevirtualinherited

Setup the window function providing the fft length.

Reimplemented in BufferedWindow.

factor()

float factor ( int  idx )

inlineinherited

Provides the multipication factor at the indicated position. The result is symetrically mirrored around the center

factor_internal()

float factor_internal ( int  idx )

inlineoverridevirtual

Implements WindowFunction.

name()

const char * name ( )

inlineoverridevirtual

Implements WindowFunction.

ratio()

float ratio ( int  idx )

inlineprotectedinherited

samples()

int samples ( )

inlineinherited

Provides the number of samples (fft length)

Member Data Documentation

fourPi

const float fourPi = 12.56637061f

protectedinherited

i_half_samples

int i_half_samples = 0

protectedinherited

i_samples

int i_samples = 0

protectedinherited

samples_minus_1

float samples_minus_1 = 0.0f

protectedinherited

sixPi

const float sixPi = 18.84955593f

protectedinherited

twoPi

const float twoPi = 6.28318531f

protectedinherited

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

• src/AudioTools/AudioLibs/FFT/FFTWindows.h