Speech synthesis integrated circuit device

Details Speech synthesis integrated circuit device Speech synthesis integrated circuit device

1979-11-16

1982-05-25

Nusbaum, Mark E.

Boots, shoes, and leggings

179 1D, 364724, G10L 100

Patent

active

043318363

ABSTRACT:
A system incorporating an integrated circuit device or chip which digitally synthesizes human speech using a linear predictive filter. The linear predictive filter comprises a single filter stage only which contains a single multiplier for selectively multiplying a plurality of coefficients, initiating the multiplication of one coefficient at a time, by using a feedback loop with multiplexing techniques so as to input multiplexed signals to the multiplier--as contrasted to a cascade of filter stages. Thus, the single multiplier of the linear predictive filter is utilized repetitively to provide the calculations required. The system also includes a memory for storage of digital filter coefficients, a controller for selectively accessing the coefficients, and a speaker for generating audible sounds.

REFERENCES:
patent: 3870818 (1975-03-01), Barton et al.
patent: 4022974 (1977-05-01), Kohut et al.
patent: 4038495 (1977-07-01), White
patent: 4052563 (1977-10-01), Noda et al.
patent: 4060848 (1977-11-01), Hyatt
Anonymous, "Talking Board Offers Speech Synthesis", Computer Design, Jul. 1976, pp. 46, 48.
M. Sambur et al., "On Reducing the Buzz in LPC Synthesis", J. Ac. Soc. Am., Mar. 1978, pp. 918-924.

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