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   * **Spectral Crest**: Ratio of the maximum value of a spectral distribution to the arithmetic mean; indicator of the degree of tonality of a signal.    * **Spectral Crest**: Ratio of the maximum value of a spectral distribution to the arithmetic mean; indicator of the degree of tonality of a signal. 
  
-  * **Spectral Entropy**: Measure of the uniformity and redundancy of a signal. White noise has high uniformity and therefore a high entropy value. +  * **Spectral Entropy**: Measure for the degree of order and redundancy of a signal. White noise has low degree of order and therefore a high entropy value. 
  
-  * **Spectral Flatness**: Another measure of uniformity (cf. Spectral Entropy). +  * **Spectral Flatness**: Another measure for the uniformity (cf. Spectral Entropy). 
  
-  * **Spectral Roll-Off Point**: The //Roll-Off-Point// is that frequency below which 85% of the energy of a signal lies. +  * **Spectral Roll-Off Point**: 85% of the energy of a signal is located below its //Roll-Off-Point// frequency.  
  
-  * **Spectral Skewness**: Measure of the symmetry of a spectrum about the mean (median); a high value implies a tendency (//skewness//) to high frequency components, a low value implies a tendency to low frequency components. +  * **Spectral Skewness**: Measure for the symmetry of a spectrum above the mean (median); a high value implies a tendency (//skewness//) to high frequency components, a low value implies a tendency to low frequency components. 
  
-  * **Spectral Slope**: A measure of energy decay in the high frequency range; provides clues to the color of noise or the dominance of (high) partials in the spectrum.  +  * **Spectral Slope**: A measure for energy decay in the high frequency range; provides clues to the color of noise or the dominance of (high) partials in the spectrum.  
  
-  * **Spectral Spread**: Measure of the degree of spread of a spectrum around the [[en:tutorium_sound#spectral_centroid|spectral centroid]]; used to distinguish between periodic signals and noise. +  * **Spectral Spread**: Measure for the degree of spread of a spectrum around the [[en:tutorium_sound#spectral_centroid|spectral centroid]]; used to distinguish between periodic signals and noise. 
  
   * **Zero Crossing Rate**: Rate of zero crossings per time; a high rate indicates a noisy signal or noise.      * **Zero Crossing Rate**: Rate of zero crossings per time; a high rate indicates a noisy signal or noise.   
  • en/tutorium_sound.1645525627.txt.gz
  • Zuletzt geändert: 2025/12/04 21:08
  • (Externe Bearbeitung)