Method and apparatus for voice emulation

Details Method and apparatus for voice emulation Method and apparatus for voice emulation

1985-04-22

1986-05-13

Dwyer, James L.

Electrical audio signal processing systems and devices

Voice controlled

381 51, A63H 333

Patent

active

045891389

ABSTRACT:
A voice emulation device, operation of which is initiated by a person's voice, is disclosed. The device includes detector circuitry that responds to a voice to produce a binary indication of the voice that is delayed by a serial shift register. The delayed binary indication is coupled to a digital-to-analog converter where the rising and falling edges of the binary indication are "shaved" to provide the delayed binary indication with attack and decay characteristics to form an amplitude envelope. The amplitude envelope is modulated by a modulation signal of a pseudo-randomly varying (audio) frequency to generate an output signal which, when converted to aural form, produces a pseudo-articulate sound (i.e., voice emulation).

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patent: 4470150 (1984-09-01), Ostrowski
patent: 4516950 (1985-05-01), Berman et al.

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