jAudioFeatureExtractor.AudioFeatures
クラス HarmonicSpectralSmoothness
java.lang.Object
jAudioFeatureExtractor.AudioFeatures.FeatureExtractor
jAudioFeatureExtractor.AudioFeatures.HarmonicSpectralSmoothness
public class HarmonicSpectralSmoothness
- extends FeatureExtractor
A peak based calculation of smoothness. Caculated by evaluting the log of a
partial minus the average of the log of the surrounding partials. Is based
upon Stephan McAdams Spectral Smoothness in (McAdams 1999).
McAdams, S. 1999. Perspectives on the contribution of timbre to musical
structure. Computer Music Journal. 23(3):85-102.
- 作成者:
- Daniel McEnnis
メソッドの概要 |
java.lang.Object |
clone()
Proviede a complete copy of this feature. |
double[] |
extractFeature(double[] samples,
double sampling_rate,
double[][] other_feature_values)
Extract the peak based spectral smoothness from the window. |
クラス java.lang.Object から継承されたメソッド |
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
HarmonicSpectralSmoothness
public HarmonicSpectralSmoothness()
- Basic constructor that sets dependencies, definition, and offsets.
extractFeature
public double[] extractFeature(double[] samples,
double sampling_rate,
double[][] other_feature_values)
- Extract the peak based spectral smoothness from the window.
- 定義:
- クラス
FeatureExtractor
内の extractFeature
- パラメータ:
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.
- 戻り値:
- The extracted feature value(s).
- 例外:
java.lang.Exception
- Throws an informative exception if the feature cannot be
calculated.- 関連項目:
FeatureExtractor.extractFeature(double[],
double, double[][])
clone
public java.lang.Object clone()
- Proviede a complete copy of this feature. Used to implement the prottype
pattern
- 定義:
- クラス
FeatureExtractor
内の clone