System and methd for reproducing sound

Dynamic information storage or retrieval – Combined independent audio systems – Combining signals to form composite

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381 92, 381 2, 360 5, H04B 120

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active

055900941

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.

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patent: 5046097 (1991-09-01), Lowe et al.
patent: 5208860 (1993-05-01), Lowe et al.
patent: 5440639 (1995-08-01), Suzuki et al.

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