Perceptually-based processing of directional room responses for multichannel loudspeaker reproduction

Author

Merimaa, Juha ; Pulkki, WIle

Author_Institution

Lab. of Acoust. & Audio Signal Process., Helsinki Univ. of Technol., Espoo, Finland

fYear

2003

fDate

19-22 Oct. 2003

Firstpage

51

Lastpage

54

Abstract

A novel method for processing directional room responses is proposed. Responses measured with a SoundField microphone or a comparable system are analyzed with an auditory resolution. From this data, loudspeaker responses for an arbitrary 2D or 3D surround sound reproduction system are synthesized. The processed responses yield a sharp and natural directional reproduction of the acoustics of a measured room. The methodology can also be applied to low bitrate audio coding of surround sound.

Keywords

architectural acoustics; audio signal processing; fast Fourier transforms; loudspeakers; microphones; signal synthesis; sound reproduction; 2D surround sound reproduction system; 3D surround sound reproduction system; FFT; SoundField microphone; audio coding; auditory resolution; directional room responses; loudspeaker responses; multichannel loudspeaker reproduction; perceptually-based processing; room acoustics; Acoustic measurements; Acoustic signal processing; Audio coding; Bit rate; Convolution; Laboratories; Layout; Loudspeakers; Microphones; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Signal Processing to Audio and Acoustics, 2003 IEEE Workshop on.

Print_ISBN

0-7803-7850-4

Type

conf

DOI

10.1109/ASPAA.2003.1285817

Filename

1285817