Title:
【発明の名称】音声のセグメンテーション方法
Document Type and Number:
Japanese Patent JP2598518
Kind Code:
B2
Abstract:
PURPOSE:To perform segmentation of high precision independently of voice power by using information entropy of voice, which is obtained by regarding a voice signal as a time series signal, to perform segmentation. CONSTITUTION:A square value calculating means, an average power calculating means 3, a forecast error power calculating means 4, a normalized entropy calculating means 5, and a syllable or phoneme section detecting means are provided. An input signal 1 is, for example, a time series signal of voice subjected to A/D conversion by a sampling frequency. Information entropy of voice at the time of regarding the voice as this time series signal is noticed, and a maximum value and a minimum value of normalized entropy and sections of the change to the maximum value and time series are detected as the syllable or phoneme section of one unit to perform voice segmentation. Since segmentation is not dependent upon the voice power, segmentation is performed with a scale independent of the individual difference of speakers.
Inventors:
Keisuke Oda
Yumi Takizawa
Tokuda Kiyohito
Atsushi Fukasawa
Yumi Takizawa
Tokuda Kiyohito
Atsushi Fukasawa
Application Number:
JP14506489A
Publication Date:
April 09, 1997
Filing Date:
June 09, 1989
Export Citation:
Assignee:
Oki Electric Industry Co., Ltd.
International Classes:
G10L15/04; G10L15/02; G10L17/00; G10L25/00; (IPC1-7): G10L3/00
Attorney, Agent or Firm:
Toshiaki Suzuki