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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.BeatHistogramLabels
public class BeatHistogramLabels
A "feature extractor" that calculates the bin labels, in beats per minute, of a beat histogram.
Although this is not a useful feature for the purposes of classifying, it can be useful for calculating other features.
IMPORTANT:
The window size of 256 RMS windows used in the BeatHistogram is hard-coded into this class. Any changes to the value in that class must be made here as well.Daniel McEnnis 05-08-05 added setBinNumber, getElement, setElement, and 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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BeatHistogramLabels()
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. |
java.lang.String |
getElement(int index)
Function permitting an unintelligent outside function (ie. |
void |
setBinNumber(int n)
Sets the bin Number - changes should be linked to beatHistogramType |
void |
setElement(int index,
java.lang.String value)
Function permitting an unintelligent outside function (ie. |
クラス jAudioFeatureExtractor.AudioFeatures.FeatureExtractor から継承されたメソッド |
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getDepenedencies, getDepenedencyOffsets, getFeatureDefinition, 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 BeatHistogramLabels()
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 and other_feature_values parameters are ignored.
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 void setBinNumber(int n) throws java.lang.Exception
n
- new number of beat bins
java.lang.Exception
- thrown if new number of bins is les than 2public java.lang.String getElement(int index) throws java.lang.Exception
FeatureExtractor
内の getElement
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
内の setElement
index
- attribute to be setvalue
- new value of the attribute
java.lang.Exception
public java.lang.Object clone()
FeatureExtractor
内の clone
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前のクラス 次のクラス | フレームあり フレームなし | ||||||||
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 |