METHOD AND APPARATUS FOR DETECTING RHYTHM POINTS, AND ELECTRONIC DEVICE

WIPO Patent Application WO/2021/120602

A1

A method and apparatus for detecting rhythm points, and an electronic device, which relate to the technical field of music analysis. The method comprises: acquiring an audio signal to be subjected to detection, and generating an audio feature curve according to said audio signal (S102); determining a music style category of said audio signal (S104); determining a detection peak threshold value and a detection frame width threshold value according to the music style category of said audio signal (S106); and determining rhythm points of the audio feature curve on the basis of the peak threshold value and the frame width threshold value (S108). The rhythm points of the audio feature curve can be determined on the basis of the peak threshold value and the frame width threshold value, thereby realizing an automatic detection process of rhythm points; moreover, the audio feature curve fuses an energy feature curve and a spectrum feature curve, such that the detection of the rhythm points is more accurate. The peak threshold value and the frame width threshold value are determined according to the music style, and therefore, the detection of rhythm points can be performed on audio signals of different styles, thereby effectively meeting requirements for music rhythm detection.

LEI JIN (CN)
TAN ZHIPENG (CN)
CHEN KANG (CN)
ZHANG WEIDONG (CN)

PCT/CN2020/100701

June 24, 2021

July 07, 2020

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NETEASE HANGZHOU NETWORK CO LTD (CN)

G10H1/00; G10H1/40; G10L25/51

CN111128100A	2020-05-08
CN109670074A	2019-04-23
CN107682642A	2018-02-09
CN101615302A	2009-12-30
US5606144A	1997-02-25

KSK IP AGENCY (CN)

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