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A System for Multi-Channel and Binaural Room Response Measurements

The development of a system for room acoustical measurements and analysis is described. The goal of the project was a versatile system for multi-channel and binaural investigations of room and concert hall acoustics. It consists of a portable PC-based workstation with multi-channel AD/DA data acquisition, an omnidirectional sound source, a 3-D microphone grid for directional response registration, a dummy head, standard omnidirectional and cardioid microphones, and MLS-based response computation. In addition to traditional room-acoustical attribute analysis, special algorithms have been developed to investigate the time-frequency behavior of responses in different directions, for example in concert halls. Analysis cases of interesting hall measurements are discussed.

Authors: Merimaa, Juha; Karjalainen, Matti; Peltonen, Timo; Gouatarbes, Benoit; Lokki, Tapio
Affiliations: Akukon Oy Consulting Engineers,Finland ; Helsinki University of Technology, Telecommunications Software and Multimedia Laboratory, HUT, Finland ; Helsinki University of Technology, Laboratory of Acoustics and Audio Signal Processing, HUT, Finland (See document for exact affiliation information.)
AES Convention:110 (May 2001) Paper Number:5289 Import into BibTeX
Subject:Instrumentation and Measurement

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