Opens in a new tab

AES E-Library

← Back to search

Journal Article

Signal Mixing for a 5.1-Channel Surround Sound System'Analysis and Experiment

Authors: Bosun, Xie

Journal of the Audio Engineering Society · Volume 49 · Issue 4 · pp. 263–274 · April 2001

Abstract

The image direction in 5.1-channel surround sound reproduction is analyzed by means of equations for multichannel sound localization. It is proven that by using pairwise signal mixing, a 5.1-channel system is capable of recreating a stable image in the front directional area. The system is also capable of recreating an image in the rear directional area, and image direction is frequency dependent. However, the image in the lateral directional area is unstable. In particular there is a hole in the image in the area of 54.6~ < 0 < 110~. Therefore the lateral image is very poor. A new signal mixing method is proposed which makes it possible to recreate a 360% image within a reasonable frequency range (up to 800 Hz). Finally, a sound image localization experiment is carried out to prove the theoretical analysis.

Details

Publication
Journal of the Audio Engineering Society
Volume
49
Issue
4
Pages
263–274
Publication date
April 6, 2001
Affiliation
South China University of Technology, Applied Physics Department, Guangzhou, P. R. China (See document for exact affiliation information.)
Type
Journal Article