Speech recognition arrangement with preselection

Details Speech recognition arrangement with preselection Speech recognition arrangement with preselection

1987-12-18

1989-08-22

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 500

Patent

active

048603589

ABSTRACT:
An arrangement and a method for recognizing a speech pattern employs a quick initial processing based upon subpatterns of speech features from which time-sequence information has been removed is followed by more conventional processing of a plurality of the best candidates. The initial processing, or pre-selection, eliminates large numbers of unlikely candidates, the best candidates being retained by setting an empirically determined threshold for similarity, as measured by a suitable distance measurement. To facilitate retrieving the complete speech feature patterns including time-sequence information for the subsequent processing, the code books of the subpatterns also contain associated indices pointing to the corresponding complete patterns.

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"Discrete Utterance Speech Recognition Without Time Normalization", ICASSP Proceedings, J. E. Shore et al., pp. 907-910.

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