Sound collecting system and sound reproducing system

Details Sound collecting system and sound reproducing system Sound collecting system and sound reproducing system

1992-11-24

1994-11-22

Pascal, Robert J.

Dynamic information storage or retrieval

Combined independent audio systems

Combining signals to form composite

381 92, 360 5, H04B 120

Patent

active

053675061

ABSTRACT:
A sound collecting system and a sound reproducing apparatus by means of which an actual audio image can be reproduced. The sound collecting system includes a plurality of microphones for producing sound signals and a plurality of position detecting apparatus for detecting locations of the microphones and/or positions of sound sources to produce position signals. The sound signals and the position signals are multiplexed by a plurality of multiplexers, and the multiplexed signals are stored into respective audio channels or different channels by a signal recording apparatus. The multiplexing may be performed by a frequency multiplexing method, a time division multiplexing method or the like. Since also position information is stored into corresponding audio channels together with acoustic sound signals, at the reproducing stage, reproduction is possible taking the positions into consideration and an actual audio image can be produced. Also dimensions, directivities and so forth of the sound sources can be multiplexed in addition to the position information.

REFERENCES:
patent: 2844663 (1958-07-01), Friess
patent: 4251688 (1981-02-01), Furner
patent: 4741038 (1988-04-01), Elko et al.
patent: 4752961 (1988-06-01), Kahn
patent: 4802227 (1989-01-01), Elko et al.

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