Voice override and amplitude control circuit

Details Voice override and amplitude control circuit Voice override and amplitude control circuit

1988-03-07

1989-11-14

Chin, Tommy P.

Electrical audio signal processing systems and devices

Including amplitude or volume control

381 82, 381110, H04R 2700

Patent

active

048811238

ABSTRACT:
An audio system having a voice override and voice amplification control circuitry is provided. The system provides high quality music to a listener through a set of headphones and includes a microphone and a foot operated switch to allow a user to override the music signal to communicate with the listener. The foot switch initiates a ramp voltage signal generator which gradually attenuates the normal music signal to a predetermined level and gradually increases the level of the voice signal and mixes it with the music signal. When the voice signal terminates, the music gradually returns to its normal level when the foot switch is deactivated resetting the ramp voltage signal generator.

REFERENCES:
patent: 3005873 (1961-10-01), Janowsky
patent: 3493681 (1970-02-01), Richards
patent: 3518375 (1970-06-01), Hawkins
patent: 3989908 (1976-11-01), Budrys
patent: 3992584 (1976-11-01), Dugan
patent: 4035589 (1977-07-01), Parke
patent: 4404429 (1983-09-01), Griffis
patent: 4675905 (1987-06-01), Flora

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