Silence editing speech processor

Details Silence editing speech processor Silence editing speech processor

H - Electricity

04

B

354/50

H04B 14/06 (2006.01) G10L 11/02 (2006.01)

Patent

CA 1181857

- 27 - SILENCE EDITING SPEECH PROCESSOR Abstract A speech pattern is converted into a sequence of adaptive digital codes. Intervals of silence in the pattern are detected and a digital code representative of each silence interval is generated. The adaptive digital codes and the silence interval codes are combined to form a digitally coded signal representative of the pattern. The conversion of the pattern to adaptive digital codes includes forming a signal corresponding to the adaptation step-size for each digital code. The silence interval detection includes producing first and second threshold signals. A silence interval signal is initiated when the adaptation step size corresponding signal diminishes below the first threshold and the silence interval is terminated when the adaptation step-size corresponding signal increases above the second threshold after the silence interval initiation.

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