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Patent Searching and Data


Title:
SOUND QUALITY IDENTIFICATION METHOD AND DEVICE FOR SOUND FILE
Document Type and Number:
WIPO Patent Application WO/2017/206900
Kind Code:
A1
Abstract:
A sound quality identification method and device for a sound file. The sound quality identification method comprises: converting the format of a sound file to be identified into a pre-set reference audio format (1022); performing framing and Fourier transform processing on the sound file in the reference audio format so as to obtain a frequency spectrum of each frame of the sound file (103, 104); performing mode matching according to the frequency spectrum of each frame of the sound file so as to obtain a preliminary classification result of the sound file (1051); determining an energy change point of the sound file according to the frequency spectrum of each frame of the sound file (1052); and determining the sound quality of the sound file according to the preliminary classification result of the sound file and the energy change point thereof (106).

Inventors:
ZHAO, Weifeng (35/F, Tencent Building,Kejizhongyi Road, Midwest District of Hi-Tech Park Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
Application Number:
CN2017/086575
Publication Date:
December 07, 2017
Filing Date:
May 31, 2017
Export Citation:
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Assignee:
TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED (35/F, Tencent Building,Kejizhongyi Road, Midwest District of Hi-Tech Park Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
International Classes:
G10L25/60
Attorney, Agent or Firm:
DEQI INTELLECTUAL PROPERTY LAW CORPORATION (7/F Xueyuan International Tower, Haidian District No.1 Zhichun Road, Beijing 3, 100083, CN)
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