A computer-controlled sound system for multipurpose event spaces, such as theaters and large arenas, is described. The authors have installed many professional sound systems for multipurpose event spaces and, using their experience, have developed a DSP-based digital multiprocessor (WZ-DM30) which provides compression, equalization, delay, and crossover. Sound localization systems cannot be designed without these signal-processor functions in order to control both signal delay and sound-level attenuation. Also described is a digital sound-field controller (WZ-DF28A) to reinforce the architectural sound field, comprising 20-bit floating-type A/D conversion, multistage noise-shaping-type D/A conversion, and FIR filters. The network system, which can link multiples of the above components, is also described.

Authors: Takeuchi, Matsumi; Seki, Nobuyuki; Matsuyama, Ikuo; Ohmachi, Ryohichi
Affiliation: Matsushita Communication Industrial Co. Ltd.,Yokohama City, Japan
AES Conference: 13th International Conference: Computer-Controlled Sound Systems (December 1994)
Paper Number: 13-040
Publication Date: December 1, 1994
Subject: Computer-Controlled Sound Systems

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