Acoustic space reproduction method, sound recording device and s

Details Acoustic space reproduction method, sound recording device and s Acoustic space reproduction method, sound recording device and s

1991-06-18

1993-11-09

Mottola, Steven

Dynamic information storage or retrieval

Combined independent audio systems

One of systems having plural concurrent signals

381 63, 381 83, H04B 120, H03G 300

Patent

active

052609200

ABSTRACT:
A system for reproducing a sound field simulating a real acousting space includes a sound collecting device, a sound recording device and a sound reproducing device. The sound collecting device includes first and second collection systems, the first collection system having non-directional microphones at respective corners of a cube defining a hypothetical three-dimensional space in the real acoustic space and the second collection system having directional microphones of the same number as the non-directional microphones concentrically within the three-dimensional space with directivity of each of the directional microphones being set in the direction of one of the non-directional microphones with which the directional microphone constitutes a pair. Collected sounds by the first and second collection systems of the sound collection device are mixed with each other and recorded on a recording medium by the sound recording device, and further provided on the sound reproducing device. The sound reproducing device has plural loudspeakers of the same number as the non-directional microphones in positions corresponding to the non-directional microphones in the three-dimensional space, and reproduces the collected sounds from the loudspeakers.

REFERENCES:
patent: 2844663 (1958-07-01), Friess
patent: 3614320 (1971-10-01), Volkmann
patent: 4649564 (1987-03-01), Bornett
patent: 5119428 (1992-06-01), Prinssen

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