CQParameters Class Reference

#include <CQParameters.h>

Public Types
enum	WindowType {   SqrtBlackmanHarris, SqrtBlackman, SqrtHann, BlackmanHarris,   Blackman, Hann }
enum	DecimatorType { BetterDecimator, FasterDecimator }

Public Member Functions
	CQParameters (double _sampleRate, double _minFrequency, double _maxFrequency, int _binsPerOctave)

Public Attributes
double	sampleRate
double	minFrequency
double	maxFrequency
int	binsPerOctave
double	q
double	atomHopFactor
double	threshold
WindowType	window
DecimatorType	decimator

Detailed Description

Common parameters for constructing Constant-Q implementation objects (both forward and inverse transforms).

Member Enumeration Documentation

enum CQParameters::DecimatorType

Enumerator
BetterDecimator
FasterDecimator

enum CQParameters::WindowType

Enumerator
SqrtBlackmanHarris
SqrtBlackman
SqrtHann
BlackmanHarris
Blackman
Hann

Constructor & Destructor Documentation

CQParameters::CQParameters ( double  _sampleRate, double  _minFrequency, double  _maxFrequency, int  _binsPerOctave  )

inline

Construct a set of parameters with the given input signal sample rate, frequency range, and number of bins per octave. The remaining parameters will take their usual defaults; if you want to change them, just assign the respective data members after construction.

Member Data Documentation

double CQParameters::atomHopFactor

Hop size between temporal atoms, where 1 == no overlap and smaller values indicate overlapping atoms.

int CQParameters::binsPerOctave

Number of output frequency bins per octave.

DecimatorType CQParameters::decimator

Quality setting for the sample rate decimator.

double CQParameters::maxFrequency

Maximum frequency to include in Constant-Q output.

double CQParameters::minFrequency

Minimum frequency desired to include in Constant-Q output. The actual minimum will normally be calculated as a round number of octaves below the maximum frequency, and may differ from this.

double CQParameters::q

Spectral atom bandwidth scaling factor. q == 1 is optimal for reconstruction, q < 1 increases redundancy (smearing) in the frequency domain but improves time resolution.

double CQParameters::sampleRate

Sampling rate of input signal.

double CQParameters::threshold

Sparsity threshold for Constant-Q kernel: values with magnitude smaller than this are truncated to zero.

WindowType CQParameters::window

Window shape to use for the Constant-Q kernel atoms.

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

• CQParameters.h