Adaptive voice mode extension for a voice activity detector

Details Adaptive voice mode extension for a voice activity detector Adaptive voice mode extension for a voice activity detector

2011-07-19

2011-07-19

Wozniak, James S (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S213000, C704S214000, C704S221000

Reexamination Certificate

active

07983906

ABSTRACT:
There is provided a voice activity detection method for indicating an active voice mode and an inactive voice mode. The method comprises receiving a first portion of an input signal; determining that the first portion of the input signal includes an active voice signal; indicating the active voice mode in response to the determining that the first portion of the input signal includes the active voice signal; receiving a second portion of the input signal immediately following the first portion of the input signal; determining that the second portion of the input signal includes an inactive voice signal; extending the indicating the active voice mode for a period of time after determining that the second portion of the input signal includes the inactive voice signal, wherein the period of time varies based on one or more conditions; and indicating the inactive voice mode after expiration of the period of time.

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