Distributed speech recognition with back-end voice activity...

Details Distributed speech recognition with back-end voice activity... Distributed speech recognition with back-end voice activity...

2006-04-04

2006-04-04

Knepper, David D. (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S254000, C704S225000, C704S214000, C704S215000, C704S208000, C704S210000, C704S233000, C704S270000

Reexamination Certificate

active

07024353

ABSTRACT:
In a distributed voice recognition system, a back-end pattern matching unit27can be informed of voice activity detection information as developed through use of a back-end voice activity detector25. Although no specific voice activity detection information is developed or forwarded by the front-end of the system, precursor information as developed at the back-end can be used by the voice activity detector to nevertheless ascertain with relative accuracy the presence or absence of voice in a given set of corresponding voice recognition features as developed by the front-end of the system.

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ETSI ES 201 108 v1.1.2 Standard, “Speech Processing, Transmission and Quality Aspects (STQ); Distributed Speech Recognition; Front-end Feature Extraction Algorithm; Compression Algorithms”, European Telecommunications Standards Institute, Apr. 2000, 20 pages.

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