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Conference Paper

Coding Principles for Virtual Acoustic Openings

Authors: Harma, Aki S.

AES Conference: 22nd International Conference: Virtual, Synthetic, and Entertainment Audio · Paper 000240 · June 2002

Abstract

Acoustic opening is a multichannel audio communications system. It consists of an array of microphones in the transmitting room and an array of loudspeakers in the receiving room. The goal is to provide listeners in the receiving room an impression that there is only an opening, or a window, on the wall between the two rooms. This can be done using a large number of audio channels and performing rendering using wavefield synthesis techniques. Nowadays, an acoustic opening can be built using standard audio components. However, the problem how to code and transmit of a huge number of highly correlated but nonidentical audio signals is almost untouched. This coding problem is studied in the current article. A general framework is formulated and some of alternative techniques are studied.

Details

Published in
AES Conference: 22nd International Conference: Virtual, Synthetic, and Entertainment Audio
Paper number
000240
Publication date
June 6, 2002
Session subject
Virtual, Synthetic and Entertainment Audio
Affiliation
Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology, Espoo, Finland (See document for exact affiliation information.)
Type
Conference Paper