Title:
UTTERANCE EVALUATION DEVICE, UTTERANCE EVALUATION METHOD, AND UTTERANCE EVALUATION PROGRAM
Document Type and Number:
Japanese Patent JP2018049246
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an utterance evaluation device, an utterance evaluation method, and an utterance evaluation program that can precisely determine variations in a fundamental pitch frequency even if distortion occurs to a voice waveform.SOLUTION: An utterance evaluation device includes: a frequency conversion unit that generates a first input spectrum obtained by frequency conversion of a first voice signal, and also generates a second input spectrum obtained by frequency conversion of a second voice signal before receiving the first voice signal; a spectrum conversion unit for generating a processed spectrum obtained by converting the frequency of the second input spectrum on the basis of a preset change rate; a correlation calculation unit for calculating a correlation value between the first input spectrum and the processed spectrum; and a control unit for determining variations of a pitch frequency from the first voice signal to the second voice signal on the basis of the change rate and the correlation value.SELECTED DRAWING: Figure 1
Inventors:
OTANI TAKESHI
TOGAWA TARO
KOMURA SAYURI
TOGAWA TARO
KOMURA SAYURI
Application Number:
JP2016186324A
Publication Date:
March 29, 2018
Filing Date:
September 23, 2016
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G10L25/90; G10L25/18; G10L25/60
Attorney, Agent or Firm:
Kenji Shimoda
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