Arrangement for discriminating speech signals

Details Arrangement for discriminating speech signals Arrangement for discriminating speech signals

G - Physics

10

L

354/50

G10L 11/02 (2006.01)

Patent

CA 1090919

Abstract of the disclosure An arrangement providing for a decision of high precision with relatively simple circuits. The input signal is delayed by a time D by means of a delay line. A first test signal of energetic character relative to the output signal of the delay line is produced. A circuit fed by the input signal produces a second test signal for identifying voiced sounds, this signal being prolonged by a time d. An AND-gate supplies the speech decision signal, relative to the output signal of the delay line, in the presence both of the first test signal and of the prolonged second test signal. The times D and d allow for the possible presence of an unvoiced consonant preceding a voiced sound and of an unvoiced consonant following a voiced sound. - 1 -

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