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Patent Searching and Data


Title:
METHOD FOR EXTRACTING INTONATION STRUCTURE OF SPEECH, AND COMPUTER PROGRAM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/043708
Kind Code:
A1
Abstract:
[Problem] To provide a method for extracting an intonation structure from a speech signal independently of language. [Solution] The method according to the present invention comprises: a step 30 for applying a zero frequency filter (ZFF) method to a framed speech signal so as to obtain a ZFF signal; steps 32, 34 for applying an algorithm for extracting an F0 pattern and an amplification pattern using the ZFF method to an amplitude signal of the ZFF signal in each glottal cycle detected from the ZFF signal so as to obtain an amplitude of the ZFF signal, a fitted curve of an amplitude sequence, and a smoothing curve of the amplitude sequence; steps 36, 38 for selecting stable speech-including frames in the ZFF signal on the basis of the amplitude of the ZFF signal; a step 40 for calculating basic frequencies of those frames and applying the abovementioned algorithm thereto so as to calculate an F0 pattern; and a step 42 for further applying the algorithm to the F0 pattern so as to extract intonation of the speech signal.

Inventors:
NI, Jinfu (4-2-1 Nukui-Kitamachi, Koganei-sh, Tokyo 95, 〒1848795, JP)
SHIGA, Yoshinori (4-2-1 Nukui-Kitamachi, Koganei-sh, Tokyo 95, 〒1848795, JP)
KAWAI, Hisashi (4-2-1 Nukui-Kitamachi, Koganei-sh, Tokyo 95, 〒1848795, JP)
Application Number:
JP2017/031581
Publication Date:
March 08, 2018
Filing Date:
September 01, 2017
Export Citation:
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Assignee:
NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY (4-2-1, Nukui-Kitamachi Koganei-sh, Tokyo 95, 〒1848795, JP)
International Classes:
G10L25/90
Attorney, Agent or Firm:
SHIMIZU, Satoshi (4th Floor, Dojima TSS Building 5-3, Sonezaki-Shinchi 2-chome, Kita-ku, Osaka-sh, Osaka 02, 〒5300002, JP)
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