Extending the sound impulse response of room using extrapolation

Author

Meng, Zihou ; Sakagami, Kimihiro ; Morimoto, Masayuki ; Bi, Guoan ; Alex, Kot Chichung

Author_Institution

Fac. of Eng., Kobe Univ., Japan

Volume

10

Issue

3

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

167

Lastpage

172

Abstract

An analytic method is used to extend the sound impulse response of a room. It is based on the extrapolation theory for band-limited signals. Only two matrix operations are needed for extending a discrete impulse response. Due to the approximation of the geometrical acoustic model of the observed data and the computation errors, the problem may be ill-conditioned. The optimum regularization method is used to solve the ill-posed problem. For discrete signals, the extrapolation is not unique, therefore additional constraints are used to obtain the admissible result. The method is evaluated with a set of psychoacoustic experiments. The evaluations are made on five psychological characteristics, and a general conclusion is given based on general fuzzy clustering

Keywords

acoustic signal processing; architectural acoustics; bandlimited signals; extrapolation; fuzzy set theory; pattern clustering; transient response; band-limited signals; computation errors; discrete impulse response; discrete signals; extrapolation; general fuzzy clustering; geometrical acoustic model approximation; hall acoustics; ill-conditioned. problem; matrix operations; optimum regularization method; psychoacoustic experiments; psychological characteristics; room sound impulse response; Acoustic reflection; Acoustical engineering; Bismuth; Extrapolation; Motion pictures; Production; Psychoacoustic models; Psychology; Solid modeling; Virtual environment;

fLanguage

English

Journal_Title

Speech and Audio Processing, IEEE Transactions on

Publisher

ieee

ISSN

1063-6676

Type

jour

DOI

10.1109/TSA.2002.1001981

Filename

1001981