마이크로폰의 이득 특성에 강인한 위치 추적

A new sound source localization method robust to microphones' gain

  • 최지성 (한국정보통신대학교 음성 음향정보연구실) ;
  • 이지연 (한국정보통신대학교 음성 음향정보연구실) ;
  • 정상배 (한국정보통신대학교 음성 음향정보연구실) ;
  • 한민수 (한국정보통신대학교 음성 음향정보연구실)
  • Choi Ji-Sung (Speech and Audio Information Lab, Information and Communication Univ.) ;
  • Lee Ji-Yeoun (Speech and Audio Information Lab, Information and Communication Univ.) ;
  • Jeong Sang-Bae (Speech and Audio Information Lab, Information and Communication Univ.) ;
  • Hahn Min-Soo (Speech and Audio Information Lab, Information and Communication Univ.)
  • 발행 : 2006.05.01

초록

This paper suggests an algorithm that can estimate the direction of the sound source with three microphones arranged on a circle. The algorithm is robust to microphones' gains because it uses only the time differences between microphones. To make this possible, a cost function which normalizes the microphone's gains is utilized and a procedure to detect the rough position of the sound source is also proposed. Through our experiments, we obtained significant performance improvement compared with the energy-based localizer.

키워드