Apparatus and method for enhancing the perceived sound image of

Details Apparatus and method for enhancing the perceived sound image of Apparatus and method for enhancing the perceived sound image of

1984-04-18

1986-06-10

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Center channel

381 18, H04R 500

Patent

active

045947309

ABSTRACT:
This invention relates to an apparatus and to a method for enhancing the perceived sound image of a stereophonic, audio reproduction system whose inputs are a right and a left signal channel by decoding the right and left signal channels into a modified right, a modified left and a center signal channels. Signal information common to the original right and left signal channels is removed within a specified bandwith to produce the modified right and modified left signal channels. The original right and left signal channels are combined and frequencies below a predetermined cutoff frequency are attenuated to produce the center signal channel.

REFERENCES:
patent: 4024344 (1977-05-01), Dolby et al.
patent: 4121059 (1978-10-01), Nakabayashi
patent: 4139728 (1979-02-01), Haramoto
patent: 4309570 (1982-01-01), Carver
patent: 4408095 (1983-10-01), Ariga et al.

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