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Convention Paper

Directional Room Acoustics Measurement Using Large-Scale Microphone Arrays

Authors: Henderson, Paul D.

AES Convention 115 · Paper 5899 · October 2003

Abstract

To fully describe the sound field at a listening position in an acoustical environment, the distribution of energy arriving from varying spatial directions is required, which this research accomplishes through the use of microphone array beamforming. Using the proposed technique, a multi-microphone impulse response measurement may be used to directionally locate any direct, reflected, or scattered energy arriving at the measurement location. This data may be graphically projected onto a sphere surrounding the measurement location or onto a virtual model of the measured environment, revealing the origin of the arriving energy. Preliminary measurements conducted at a prominent concert hall are presented, illustrating the analysis capability of the technique.

Details

Published in
AES Convention 115
AES Convention
115
Paper number
5899
Publication date
October 6, 2003
Session subject
Instrumentation and Measurement
Affiliation
Program in Architectural Acoustics, Rensselaer Polytechnic Institute, Troy, NY (See document for exact affiliation information.)
Type
Convention Paper