spectral centroid


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spectral centroid

[′spek·trəl ′sen‚trȯid]
(optics)
An average wavelength; specifically, for a light filter or other light-transmitting device, a weighted average of the spectral energy distribution of the incident light, the transmittance of the device, and the luminosity function.
References in periodicals archive ?
Five psychoacoustics metrics, including loudness, sharpness, tonality, spectral centroid and Kurtosis, are analyzed for the cases with various gear faults.
Five subjective metrics, including loudness, sharpness, tonality, spectral centroid and Kurtosis, are analyzed for the cases with various gear faults.
Besides those standardized metrics, there are some other psychoacoustic metrics including the tonality, spectral centroid and Kurtosis, which are also very useful in revealing the features of the human perception of sound.
It can be easily observed that the kurtosis, total loudness, spectral centroid and sharpness of the noise increase gradually as the gear tooth wear increases.
Through combining all the information provided by the results of total loudness, sharpness, kurtosis, spectral centroid, specific loudness and tonality, the wear can be detected.
It can be easily seen that, from normal case to the Case G, the spectral centroid and sharpness firstly increase significantly and then level off slightly.
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