Title:
AUDIO FILE RETRIEVAL METHOD, DEVICE, SERVER AND COMPUTER READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/100953
Kind Code:
A1
Abstract:
An audio file retrieval method, a device, a server and a computer readable storage medium, belonging to the field of audio processing. The method comprises: collecting, in real time, an audio segment to be retrieved; acquiring a difference between spectral centroids of sub-bands corresponding to every two audio frames, the timing sequences of which are adjacent, among a plurality of audio frames of the audio segment, and obtaining a plurality of differences; obtaining audio fingerprints corresponding to the two audio frames on the basis of the plurality of differences and a preset difference threshold, each bit of the audio fingerprint being determined by whether the difference corresponding to said bit satisfies a preset difference condition; and performing retrieval in an audio file library, on the basis of the audio fingerprints of the plurality of audio frames, to obtain a target audio file matching the audio segment. The method improves the accuracy of retrieving an audio file.
Inventors:
ZHANG JINGYUN (CN)
WANG HUI (CN)
WANG HUI (CN)
Application Number:
PCT/CN2018/114889
Publication Date:
May 31, 2019
Filing Date:
November 09, 2018
Export Citation:
Assignee:
TENCENT TECH SHENZHEN CO LTD (CN)
International Classes:
G06F40/00; G10L15/08
Foreign References:
| CN107918663A | 2018-04-17 | |||
| CN103854646A | 2014-06-11 | |||
| CN104464726A | 2015-03-25 | |||
| CN104091599A | 2014-10-08 | |||
| CN101364222A | 2009-02-11 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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