Audio spatial equalization system

Details Audio spatial equalization system Audio spatial equalization system

1991-01-18

1991-08-20

Ng, Jin F.

Electrical audio signal processing systems and devices

Binaural and stereophonic

381 28, H04S 100

Patent

active

050420682

ABSTRACT:
A television receiver includes a stereo amplifier having separate bass, treble and gain controls, for driving left and right channel loudspeakers. Separate bandpass circuits supply portions of the respective channel signals for phase inversion and feed back to respective summation circuits in the outputs of the corresponding opposite channel to produce an extended stereo effect. A switch simultaneously activates the syereo extender circuitry and operatively couples the bass and treble controls to the gain control for extending the frequency response characteristic and the volume level of the channels.

REFERENCES:
patent: 4149036 (1979-04-01), Okamoto et al.
patent: 4192969 (1980-03-01), Iwahara
patent: 4696035 (1987-09-01), Torelli et al.
patent: 4700389 (1987-10-01), Nakayama
patent: 4868878 (1989-09-01), Kunugi et al.
patent: 4980914 (1990-12-01), Kunugi et al.

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