About: Spectral flux

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Spectral flux is a measure of how quickly the power spectrum of a signal is changing, calculated by comparing the power spectrum for one frame against the power spectrum from the previous frame. More precisely, it is usually calculated as the L2-norm (also known as the Euclidean distance) between the two normalised spectra. Calculated this way, the spectral flux is not dependent upon overall power (since the spectra are normalised), nor on phase considerations (since only the magnitudes are compared).

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  • Spectral flux is a measure of how quickly the power spectrum of a signal is changing, calculated by comparing the power spectrum for one frame against the power spectrum from the previous frame. More precisely, it is usually calculated as the L2-norm (also known as the Euclidean distance) between the two normalised spectra. Calculated this way, the spectral flux is not dependent upon overall power (since the spectra are normalised), nor on phase considerations (since only the magnitudes are compared). The spectral flux can be used to determine the timbre of an audio signal, or in onset detection, among other things. (en)
  • 스펙트럴 플럭스(Spectral Flux)는 신호의 스펙트럼이 얼마나 빠르게 변하는지를 측정한 양이다. 이것은 현재 프레임과 바로 전 프레임의 차이로부터 구할 수 있는데, 주로 각각의 스팩트럼을 우선 정규화 한 후 각각의 주파수 사이의 유클리드 거리를 구하는 방식으로 계산한다. (ko)
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  • 스펙트럴 플럭스(Spectral Flux)는 신호의 스펙트럼이 얼마나 빠르게 변하는지를 측정한 양이다. 이것은 현재 프레임과 바로 전 프레임의 차이로부터 구할 수 있는데, 주로 각각의 스팩트럼을 우선 정규화 한 후 각각의 주파수 사이의 유클리드 거리를 구하는 방식으로 계산한다. (ko)
  • Spectral flux is a measure of how quickly the power spectrum of a signal is changing, calculated by comparing the power spectrum for one frame against the power spectrum from the previous frame. More precisely, it is usually calculated as the L2-norm (also known as the Euclidean distance) between the two normalised spectra. Calculated this way, the spectral flux is not dependent upon overall power (since the spectra are normalised), nor on phase considerations (since only the magnitudes are compared). (en)
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  • 스펙트럴 플럭스 (ko)
  • Spectral flux (en)
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