Method and apparatus for controlling the sound field in auditori

Details Method and apparatus for controlling the sound field in auditori Method and apparatus for controlling the sound field in auditori

1990-10-03

1992-07-14

Isen, Forester W.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 83, 381 77, 381 80, 381 63, 381 64, H04R 2700

Patent

active

051310511

ABSTRACT:
A system for controlling the second field in auditorium having the feature that stage and audience seating areas are different acoustically, which includes a first assisted acoustics system whereby acoustical energy from the stage area is input, and then controlled acoustic energy is supplied to the audience seating area, and a second assisted acoustics which is provided independently of the first electronic acoustical augmentation system, whereby acoustical energy from the audience seating area is input, and then controlled acoustic energy is supplied to the stage area. Each assisted acoustics system includes acoustic energy input devices and acoustic energy output devices whereby a uniform rate of power decay coefficient can be effected throughout the hall, including spaces under balconies and the like. Significantly improved the degree of acoustic similarity between the stage area and audience seating area is achieved by controlling reverberation characteristics.

REFERENCES:
patent: 3614320 (1971-10-01), Volkmann
patent: 5025472 (1991-06-01), Shimizu et al.
"Delta Stereophony-A Spind System with True Direction and Distance Perception for Large Multipurpose Halls" by Gerhard Steinke, Jul./Aug. 1983. J. Andio Eng. Soc. vol. 31 No. 7 1983 Jul./Aug.

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