Speech Analysis of the Talking Robot with Human-like Artificial Vocal Tract

Vo Nhu Thanh, Hideyuki Sawada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The authors are building a mechatronic speaking system using biological inspired approach by referring to the geometry and shape of human vocalization system. The vocal cords of this talking machine are built using functionally approach of a human vocalization system. A transparent plastic container encloses a thin layer of elastic band generates an artificial sound source when vibrating. For human, the frequency of a sound source varies from 100Hz to 300 Hz relies on mutually pressure acting on the rubber band in combination with rubber band tension. The air pressure applied to the rubber band and the rubber band tension can be respectively changed by a reducing valve and a rotating mechanism. The performance evaluation of this mechanical vocalization system with a human-like vocal tract is analyzed from the generation of the five basic Japanese vowel sounds. The spectrum peaks and volume of each vowel sound are extracted to evaluate the influence of the shape of vocal tract on the sound regenerated by the talking robot. The results verified that this newly restructured vocal tract derives a pretty good sound from a mechanical vocalization system.

Original languageEnglish
Title of host publication2020 IEEE International Conference on Mechatronics and Automation, ICMA 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1912-1917
Number of pages6
ISBN (Electronic)9781728164151
DOIs
Publication statusPublished - 2020 Oct 13
Event17th IEEE International Conference on Mechatronics and Automation, ICMA 2020 - Beijing, China
Duration: 2020 Oct 132020 Oct 16

Publication series

Name2020 IEEE International Conference on Mechatronics and Automation, ICMA 2020

Conference

Conference17th IEEE International Conference on Mechatronics and Automation, ICMA 2020
CountryChina
CityBeijing
Period20/10/1320/10/16

Keywords

  • base frequency
  • Human-like vocal tract
  • pitch
  • talking robot
  • volume

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization

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