Word model candidate preselection for speech recognition using p

Details Word model candidate preselection for speech recognition using p Word model candidate preselection for speech recognition using p

1995-01-25

1997-10-28

MacDonald, Allen R.

395 25, 395 252, 395 261, G10L 506

Patent

active

056824645

ABSTRACT:
In the large vocabulary speech recognition system disclosed herein, a preliminary screening of vocabulary models is provided by applying high speed distance measuring functions. The distance measuring functions utilize subsampled or otherwise reduced representations of the unknown speech segment and the vocabulary models. The initial screening functions achieve very high speed by precalculating, for each utterance, a comparison table of distance values which can be used for all vocabulary models. The building of each comparison table is facilitated by a method which utilizes default values as initial entries and only adjusts entries which are meaningfully different from the default value.

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