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概要: 入れ子 | フィールド | コンストラクタ | メソッド | 詳細: フィールド | コンストラクタ | メソッド |
java.lang.ObjectjAudioFeatureExtractor.AudioFeatures.FeatureExtractor
jAudioFeatureExtractor.AudioFeatures.Compactness
public class Compactness
A feature extractor that extracts the Compactness. This is a measure of the noisiness of a signal.
This is calculated by comparing the value of a magnitude spectrum bin with its surrounding values.
No extracted feature values are stored in objects of this class.
Daniel McEnnis 05-07-05 added check for degenerate case of 0 in magnitude spectrum and added clone
フィールドの概要 |
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クラス jAudioFeatureExtractor.AudioFeatures.FeatureExtractor から継承されたフィールド |
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definition, dependencies, offsets, parent |
コンストラクタの概要 | |
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Compactness()
Basic constructor that sets the definition and dependencies (and their offsets) of this feature. |
メソッドの概要 | |
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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)
Extracts this feature from the given samples at the given sampling rate and given the other feature values. |
クラス jAudioFeatureExtractor.AudioFeatures.FeatureExtractor から継承されたメソッド |
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getDepenedencies, getDepenedencyOffsets, getElement, getFeatureDefinition, setElement, setParent, setWindow |
クラス java.lang.Object から継承されたメソッド |
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equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
コンストラクタの詳細 |
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public Compactness()
メソッドの詳細 |
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public double[] extractFeature(double[] samples, double sampling_rate, double[][] other_feature_values) throws java.lang.Exception
In the case of this feature, the sampling_rate parameter is ignored.
Daniel McEnnis 05-07-05 checks for degenerate case where magnitude spectrum entry is exactly zero - skips these values
FeatureExtractor
内の extractFeature
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()
FeatureExtractor
内の clone
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概要: 入れ子 | フィールド | コンストラクタ | メソッド | 詳細: フィールド | コンストラクタ | メソッド |