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java.lang.ObjectjAudioFeatureExtractor.AudioFeatures.FeatureExtractor
jAudioFeatureExtractor.AudioFeatures.AreaPolynomialApproximationConstantQMFCC
public class AreaPolynomialApproximationConstantQMFCC
2D Polynomial Approximation Feature Creates a set of polynomial factors for a 2D polynomial of order k*l where k is the number of terms in the x direction and l is the number of terms in the y direction. The source is a square matrix of DSP data of some sort. (This version is over FFT data.) The output is a vector of the coeffecients of the polynomial that best fits this data.
Field Summary |
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Fields inherited from class jAudioFeatureExtractor.AudioFeatures.FeatureExtractor |
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definition, dependencies, offsets, parent |
Constructor Summary | |
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AreaPolynomialApproximationConstantQMFCC()
Constructor that sets description, dependencies, and offsets from FeatureExtractor |
Method Summary | |
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java.lang.Object |
clone()
Create an identical copy of this feature. |
double[] |
extractFeature(double[] samples,
double sampling_rate,
double[][] other_feature_values)
Calculates based on windows of magnitude spectrum. |
java.lang.String |
getElement(int index)
Function permitting an unintelligent outside function (ie. |
void |
setElement(int index,
java.lang.String value)
Function permitting an unintelligent outside function (i.e. |
void |
setWindow(int n)
Function that must be overridden to allow this feature to be set globally by GlobalChange frame. |
Methods inherited from class jAudioFeatureExtractor.AudioFeatures.FeatureExtractor |
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getDepenedencies, getDepenedencyOffsets, getFeatureDefinition, setParent |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public AreaPolynomialApproximationConstantQMFCC()
Method Detail |
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public double[] extractFeature(double[] samples, double sampling_rate, double[][] other_feature_values) throws java.lang.Exception
extractFeature
in class FeatureExtractor
samples
- The samples to extract the feature from.sampling_rate
- The sampling rate that the samples are encoded with.other_feature_values
- The values of other features that are needed to calculate this
value. The order and offsets of these features must be the
same as those returned by this class's getDependencies and
getDependencyOffsets methods respectively. The first indice
indicates the feature/window and the second indicates the
value.
java.lang.Exception
- Throws an informative exception if the feature cannot be
calculated.public void setWindow(int n) throws java.lang.Exception
setWindow
in class FeatureExtractor
n
- the number of windows of offset to be used in calculating this
feature
java.lang.Exception
public java.lang.String getElement(int index) throws java.lang.Exception
getElement
in class FeatureExtractor
index
- which of AreaMoment's attributes should be edited.
java.lang.Exception
public void setElement(int index, java.lang.String value) throws java.lang.Exception
setElement
in class FeatureExtractor
index
- attribute to be setvalue
- new value of the attribute
java.lang.Exception
public java.lang.Object clone()
clone
in class FeatureExtractor
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