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java.lang.ObjectjAudioFeatureExtractor.AudioFeatures.FeatureExtractor
jAudioFeatureExtractor.AudioFeatures.MFCC
public class MFCC
Utilizes the MFCC code from the OrangeCow Volume project.
S. Pfeiffer, and C. Parker, and T. Vincent. 2005. OC volume: Java speech recognition engine. 2005. [cited April 14, 2005].
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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MFCC()
Construct a MFCC object, setting definition, dependencies, and offsets. |
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)
Calculate Mel Frequency Cepstrum Coeffecients from the magnitude spectrum of a signal |
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 (ie. |
Methods inherited from class jAudioFeatureExtractor.AudioFeatures.FeatureExtractor |
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getDepenedencies, getDepenedencyOffsets, getFeatureDefinition, setParent, setWindow |
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 MFCC()
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 java.lang.Object clone()
clone
in class FeatureExtractor
public java.lang.String getElement(int index) throws java.lang.Exception
FeatureExtractor
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
FeatureExtractor
setElement
in class FeatureExtractor
index
- attribute to be setvalue
- new value of the attribute
java.lang.Exception
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