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Title:
REVERBERATION TIME ESTIMATION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/024058
Kind Code:
A1
Abstract:
Provided are a reverberation time estimation method and apparatus, used for solving the problem, in existing reverberation time estimation methods based on speech models, of the reverberation time of reverberation speech for which the reverberation time is smaller than a preset threshold being overestimated. The reverberation time estimation method is: in a reverberation environment, obtaining a current reverberation speech signal (101); determining an autocorrelation function on the basis of historical reverberation speech signals and the current reverberation speech signal (102); according to the autocorrelation function and a preset maximum-likelihood estimation model, determining the reverberation time of the current reverberation speech signal (103).

Inventors:
ZHAO, Yali (NO. 40 Xueyuan Rd, Haidian District, Beijing 1, 100191, CN)
LIANG, Min (NO. 40 Xueyuan Rd, Haidian District, Beijing 1, 100191, CN)
SHA, Yongtao (NO. 40 Xueyuan Rd, Haidian District, Beijing 1, 100191, CN)
Application Number:
CN2017/090887
Publication Date:
February 08, 2018
Filing Date:
June 29, 2017
Export Citation:
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Assignee:
CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY (NO. 40 Xueyuan Rd, Haidian District, Beijing 1, 100191, CN)
International Classes:
G01H7/00; G10K15/08
Attorney, Agent or Firm:
TDIP & PARTNERS (Room 1304-05, A Zhizhen Building No. 7 Zhichun Road, Haidian District, Beijing 1, 100191, CN)
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