Sound field control device and method for controlling a sound fi

Details Sound field control device and method for controlling a sound fi Sound field control device and method for controlling a sound fi

1994-11-08

1995-09-19

Isen, Forester W.

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 82, H03G 300

Patent

active

054523605

ABSTRACT:
A sound field control device for simulating a sound field of a small space such as a concert hall in a large space such as an open outdoor space and a large indoor space comprises loudspeakers for controlling a sound field disposed at or in the vicinity of positions in a real space corresponding to positions on a hypothetical peripheral plane which defines a hypothetical space in the real space, and a hypothetical reflected sound synthesizing section for synthesizing hypothetical reflected sounds on the basis of the sounds from a real sound source and supplying the synthesized hypothetical reflected sounds to the loudspeakers. The hypothetical reflected sounds are synthesized so that they will simulate sounds which are emanated from the real sound source and reflected from the hypothetical peripheral plane of the hypothetical space. A natural sound field in which one feels as if he was in an indoor concert hall can be obtained in the whole hypothetical space.

REFERENCES:
patent: 4237343 (1980-12-01), Kurtin et al.
patent: 4593404 (1986-06-01), Bolin
patent: 4731848 (1988-03-01), Kendall et al.
patent: 4937875 (1990-06-01), Hayashi
patent: 5142586 (1992-08-01), Berkhout

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