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Conference Paper

Room Acoustics for Multichannel Listening: Early Reflection Control

Authors: Walker, Bob

AES Conference: UK 22nd Conference: Illusions in Sound · Paper 8 · April 2007

Abstract

This paper briefly outlines the development of control room acoustics from the earliest inception, through phases of monophonic, two-channel stereophonic and, most recently, multichannel sound. It concentrates especially on the control of early reflections from the boundary surfaces of the room and the detrimental effects of those reflections on sound stage imaging. Design methodologies are described that allow the shapes of the room boundaries to be so arranged that the early reflected sound energy does not return to the principal listener’s position until after an initial time gap. Results are presented from measurements on a conventional control room, a stereophonic room designed with minimum early reflections and from a multichannel room. Though the discussion is presented in terms of control room design, the simplified principles for multichannel design are also applicable directly to domestic listening spaces.

Details

Published in
AES Conference: UK 22nd Conference: Illusions in Sound
Paper number
8
Publication date
April 6, 2007
Session subject
Psychoacoustics and acoustics
Affiliation
Wave Science Technology Ltd. (See document for exact affiliation information.)
Type
Conference Paper