Speech recognition system distinguishing dictation from commands

Details Speech recognition system distinguishing dictation from commands Speech recognition system distinguishing dictation from commands

1996-06-24

1998-08-11

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

704239, 704251, 704253, G10L 506

Patent

active

057941963

ABSTRACT:
In the speech recognition system disclosed herein, an input utterance is submitted to both a large vocabulary isolated word speech recognition module and a small vocabulary continuous speech recognition module. The small vocabulary contains command words which can be combined in sequences to define commands to an application program. The two recognition modules generate respective scores for identified large vocabulary models and for sequences of small vocabulary models. The score provided by the continuous speech recognizer is normalized on the basis of the length of the speech input utterance and an arbitration algorithm selects among the candidates identified by the recognition modules. Without requiring the user to switch modes, text is output if a score from the isolated word recognizer is selected and a command is output if a score from the continuous speech recognizer is selected.

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Jeffrey C. Scott, "The voices of automation", Computer Shopper, vol. 16, No. 9, p. 550(6), from Computer Select, Aug. 1997.

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