Decreasing time duration of recorded speech

Details Decreasing time duration of recorded speech Decreasing time duration of recorded speech

1982-06-21

1984-06-26

Kemeny, E. S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 54, G10L 100

Patent

active

RE0316148

ABSTRACT:
Disclosed is apparatus for and a method of decreasing the time duration of playback of recorded speech without distortion. Speech recorded at a normal rate is played back at a higher rate using two variable length buffers in alternating fashion to receive sampled speech segments. Threshold analysis logic circuitry is provided to continually compare the output voltage levels of both buffers and to switch the output between the buffers to a using device when the voltage level of both buffers is approximately zero and of an equal amplitude. In this way output to the using device consists of segments from both buffers joined with a minimum of generated noise and no associated dead zone without regard to any predetermined segment length.

REFERENCES:
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patent: 3621150 (1971-11-01), Pappas
patent: 3786195 (1974-01-01), Schiffman
patent: 3803363 (1974-04-01), Lee
patent: 3816664 (1974-06-01), Koch
patent: 3855424 (1974-12-01), Tharmaratnam et al.
patent: 3872503 (1975-03-01), Schutterly
patent: 3934094 (1976-01-01), Kobayashi et al.

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