FFTDisplay Class Reference

#include <FFTDisplay.h>

Public Member Functions
	FFTDisplay (AudioFFTBase &fft)
void	begin ()
float	getMagnitude (int x)
int	getMagnitudeScaled (int x, int max)

Static Public Member Functions
static void	fftCallback (AudioFFTBase &fft)
	callback method which provides updated data from fft

Public Attributes
int	fft_group_bin = 1
	group result by adding subsequent bins
float	fft_max_magnitude = 700.0f
	Influences the senitivity.
int	fft_start_bin = 0
	start bin which is displayed

Protected Member Functions
void	loadMangnitudes ()

Protected Attributes
Vector< float >	magnitudes {0}
AudioFFTBase *	p_fft = nullptr

Detailed Description

Display FFT result: we can define a start bin and group susequent bins for a combined result.

Constructor & Destructor Documentation

FFTDisplay()

FFTDisplay ( AudioFFTBase &  fft )

inline

Member Function Documentation

begin()

void begin ( )

inline

fftCallback()

static void fftCallback ( AudioFFTBase &  fft )

inlinestatic

callback method which provides updated data from fft

getMagnitude()

float getMagnitude ( int  x )

inline

Returns the magnitude for the indicated led x position. We might need to combine values from the magnitudes array if this is much bigger.

getMagnitudeScaled()

int getMagnitudeScaled ( int  x, int  max  )

inline

loadMangnitudes()

void loadMangnitudes ( )

inlineprotected

Member Data Documentation

fft_group_bin

int fft_group_bin = 1

group result by adding subsequent bins

fft_max_magnitude

float fft_max_magnitude = 700.0f

Influences the senitivity.

fft_start_bin

int fft_start_bin = 0

start bin which is displayed

magnitudes

Vector<float> magnitudes {0}

protected

p_fft

AudioFFTBase* p_fft = nullptr

protected

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

• src/AudioTools/AudioLibs/FFTDisplay.h