Device for the processing of voice signals

Details Device for the processing of voice signals Device for the processing of voice signals

1979-09-25

1981-08-25

Konick, Bernard

H04B 1500

Patent

active

042861160

ABSTRACT:
A processing device transmits speech signals of constant amplitude during periods of voice activity and interrupts transmission outside these periods, so that noise is not transmitted. To this end the processing device comprises an amplitude-compressing device preceded by a voice activity detector comprising a delay line in series with an electronic switch and a speed - noise discriminator having a common input with the delay line for receiving the voice signals. The switch is controlled by the output signal of the discriminator in such a way that it only permits the passage of the voice signals corresponding to the periods of voice activity.

REFERENCES:
patent: 3126449 (1964-03-01), Shirman
patent: 3872250 (1975-03-01), Coulter
patent: 3902123 (1975-08-01), Oomen
patent: 3947636 (1976-03-01), Edgar
patent: 3952158 (1976-04-01), Kyle et al.
patent: 4143325 (1979-03-01), Kahn
patent: 4143333 (1979-03-01), Jacobsen et al.

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