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A Manufacturer's Review of the Progress of Large Scale Electro-Acoustic Systems in Auditoria

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Reviewing large scale electro-acoustic systems for auditoria over the last 30 years, with some examples from the authors' experiences, the progress of developments is considered in relationship to some trends in the requirements. Before 1970, systems were designed to meet to multiple use, as the only one facility of this scale in each community. Therefore, the primary subject of design was to establish a good articulation of speech. Between 1971 and 982, most systems were modified to accept some popular music that was brought from the recording studio to auditoria.

This accelerated developments of some new equipment for effects such as wireless microphones, artificial reverberators and a remote mixing console operated in the audience seats. After 1983, requirements were spread and specilaized in accordance with each performance. The designs of auditoria were also varied from the traditional shape to others such as a square, circular or oval floor etc. This made the systems complicated and difficult to operate by hand. As a result, electro-acoustic systems had to adopt new technologies from computing, such as memorization and processing by stored programming. In recent systems, performance production skill and the technology of electro-acoustics are fused in combination with visual systems, which indicates the future trend of computer-aided show production.
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Document Type: Research Article

Publication date: March 1, 1998

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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