Apparatus for the detection of voice signals

Details Apparatus for the detection of voice signals Apparatus for the detection of voice signals

H - Electricity

03

G

354/50

H03G 3/32 (2006.01) G10L 11/02 (2006.01)

Patent

CA 1156762

ABSTRACT OF THE DISCLOSURE APPARATUS FOR THE DETECTION OF VOICE SIGNALS A detection apparatus for receiving an input signal containing noise and for detecting the presence of voice signals therein comprises means for attenuat- ing the input signal and a comparator of the amplitude of the attenuated input signal relative to a variable threshold voltage. This threshold voltage is generated by control means which make the threshold voltage dependent on the peak amplitude value of the input signal. A control signal corres- ponding to the detection of voice signals is supplied by decision means which carry out a time analysis of the output signal of the comparator.

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