Sensing of particular speakers for the construction of voice interface utilized in noisy environment

Hideyuki Sawada*, Minoru Ohkado

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A human is able to exchange information smoothly using voice under different situations such as a noisy environment in a crowd and with the existence of multiple speakers. We are able to detect the position of a source sound in three-dimensional space, extract a particular sound from mixed sounds, and recognize who is talking. By realizing this mechanism with a computer, new applications will be presented for recording a sound with high quality by reducing noise, presenting a clarified sound, and realizing microphone-free speech recognition by extracting particular sounds. The paper will introduce real-time detection and identification of a particular speaker in a noisy environment using a microphone array based on the location of a speaker and the individual voice characteristics. The study will be applied to develop an adaptive auditory system for a mobile robot which collaborates with a factory worker.

Original languageEnglish
Pages (from-to)78-86
Number of pages9
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Issue number3
Publication statusPublished - 2008 Feb 1
Externally publishedYes


  • Cepstrum
  • Microphone array
  • Noisy environment
  • Sound localization
  • Speaker identification

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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