Method and apparatus for continuous speech recognition using a l

Details Method and apparatus for continuous speech recognition using a l Method and apparatus for continuous speech recognition using a l

1997-09-12

1999-12-21

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

G10L 506, G10L 900

Patent

active

060061812

ABSTRACT:
A continuous speech decoder that is built up of multiple layers. Each of the layers uses independent knowledge sources and rules, but all the layers cooperate to quickly decode the speech input into words. A first layer is concerned with acoustic data, a second layer with phone data of speech and a third layer concerns word data and word sequences. By separating these layers, the higher layers can be made time independent and asynchronous. Thus the asynchronous layers can process data quickly and give fast support to the first layer which keeps a dynamic record called a dynamic network of the most likely continuous speech results. The speed and separation of this decoder allows better memory efficiency and better decoder results compared to previously known continuous speech decoders.

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