Localizing sound source by incorporating biological auditory mechanism

Author

Sugie, Noboru ; Huang, Jie ; Ohnishi, Noboru

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

fYear

1988

fDate

24-27 July 1988

Firstpage

243

Abstract

A novel system for multiple sound-source localization has been developed. It consists of three microphones, to resolve the anterior-posterior ambiguity inherent in the binaural time-difference cue. As in the biological auditory system, acoustic signals are decomposed into their frequency components via a set of bandpass filters and the intermicrophone phase differences are obtained around the onsets of the transiently changing signals. The phase differences at various frequencies are utilized to resolve the ambiguity in the correspondence relationship between the onsets derived from pairs of microphones. The scheme has been implemented as a personal-computer-based system and applied successfully to systems of two sound sources as well as a single sound source.<>

Keywords

acoustic variables measurement; band-pass filters; computerised signal processing; filtering and prediction theory; microcomputer applications; microphones; position measurement; acoustic signals; anterior-posterior ambiguity; bandpass filters; binaural time-difference cue; biological auditory mechanism; frequency components; intermicrophone phase differences; microcomputer; microphones; multiple sound-source localization; personal-computer-based system; signal decomposition; Acoustic measurements; Bandpass filters; Filtering; Microcomputer applications; Microphones; Position measurement; Prediction methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Networks, 1988., IEEE International Conference on

Conference_Location

San Diego, CA, USA

Type

conf

DOI

10.1109/ICNN.1988.23935

Filename

23935