Compression/expansion device

Details Compression/expansion device Compression/expansion device

1983-08-26

1985-08-13

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381106, 370 7, 455 72, H03G 700, H04H 500

Patent

active

045354715

ABSTRACT:
A compression/expansion device is adapted to compress and expand gains of additive and subtractive signals at each level of at least two audio signals, characterized in that each audio signal or any one of the additive and subtractive signals is compressed at the compressing side and expanded at the expanding side depending on the level of the additive signal.

REFERENCES:
patent: 3775705 (1973-11-01), Dolby
patent: 3978409 (1976-08-01), Dolby et al.
patent: 4281217 (1981-07-01), Dolby
patent: 4430754 (1984-02-01), Ishigaki

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