Estimation of the waveform of a sound source by using an iterative technique with many sensors

Author

Abe, Masato ; Fujii, Kiyohito ; Nagata, Yoshifumi ; Sone, Toshio ; Kido, Ken´iti

Author_Institution

Dept. of Comput. & Inf. Sci., Iwate Univ., Morioka, Japan

Volume

6

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

24

Lastpage

35

Abstract

This paper proposes a method to estimate the waveform of sound sources. This is accomplished by using a microphone array where the microphones are not situated close to the sound sources. The waveform is estimated using the sound velocity and positions of the microphones and sound sources as the only fixed parameters. The positions of the sound sources can be estimated in advance by using a conventional method such as multiple signal classification method (MUSIC). An iteration method is introduced to reduce the effect of direct sounds and of significant image sources due to reflected noise and/or other sound sources, whose positions are known. Computer simulations and an experiment with loudspeakers were conducted to demonstrate the effectiveness of our method

Keywords

acoustic noise; acoustic radiators; acoustic signal processing; acoustic transducer arrays; array signal processing; audio recording; direction-of-arrival estimation; iterative methods; microphones; pattern classification; waveform analysis; MUSIC; computer simulations; direct sounds; experiment; human voice recording; image sources; iterative technique; microphone array; microphone positions; multiple signal classification; noisy environment; reflected noise; sensor array; sound source; sound velocity; waveform estimation; Acoustic noise; Acoustic sensors; Array signal processing; Circuit noise; Delay; Laboratories; Microphone arrays; Multiple signal classification; Music; Working environment noise;

fLanguage

English

Journal_Title

Speech and Audio Processing, IEEE Transactions on

Publisher

ieee

ISSN

1063-6676

Type

jour

DOI

10.1109/89.650307

Filename

650307