AudioPeakFeature Class Reference

#include <Audio.h>

Inheritance diagram for AudioPeakFeature:

List of all members.

Public Member Functions
virtual const string	getName () const
virtual string	toString () const
Protected Member Functions
	AudioPeakFeature (long *minval, long *maxval)
	AudioPeakFeature (long *minval, long *maxval, unsigned peaks)
Friends
class	AudioFeatureProvider

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Detailed Description

Counts the peaks in the input signal

This feature counts the peaks in the input signal. If there are high peaks the extractor becomes less sensible to lower peaks, if there are only a few low peaks the extractor becomes more sensible to them. When nextSample is called, the peak counter is reset to 0.

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Constructor & Destructor Documentation

AudioPeakFeature::AudioPeakFeature (  long *  minval, long *  maxval )  [inline, protected]

Feature constructor This constructor initializes the feature with a random value and should thus only be used for creating e.g. prototypes of points in a clustering space. For creating a specific sample of a feature, the second constructor should be used. Parameters: minval  A reference to a static variable (it must be same for all created objects of _one_ feature) for persistantly storing the minimum value. maxval  A reference to a static variable (it must be same for all created objects of _one_ feature) for persistantly storing the maximum value.

AudioPeakFeature::AudioPeakFeature (  long *  minval, long *  maxval, unsigned  peaks )  [inline, protected]

Sample constructor This constructor initializes the feature with a specific value and should thus be used for samples. Parameters: minval  A reference to a static variable (it must be same for all created objects of _one_ feature) for persistantly storing the minimum value. maxval  A reference to a static variable (it must be same for all created objects of _one_ feature) for persistantly storing the maximum value. peaks  The sample value.

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Member Function Documentation

virtual const string AudioPeakFeature::getName (   )  const [inline, virtual]

Query a features name Returns: Name of the Feature in the format "Featureprovider.Feature" Reimplemented from NumericalDiscreteFeature.

string AudioPeakFeature::toString (   )  const [virtual]

This is only for testing. Reimplemented from NumericalDiscreteFeature.

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

• amw/src/cpp/cross/contextprediction/framework/Features/Audio/Audio.h
• amw/src/cpp/cross/contextprediction/framework/Features/Audio/Audio.cpp

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