Spectral centroid for audio signals and auditory spectrograms
The spectral centroid is calculated as described in[1]:
where
fkis the frequency in Hz corresponding to bink。
skis the spectral value at bink。
b1和b2是带有垃圾箱的带边缘,以计算光谱质心。
[1] Peeters,G。“ Cuidado Project中的声音描述(相似性和分类)的大量音频功能。”技术报告;IRCAM:法国巴黎,2004年。