Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Patent
1997-10-02
2000-04-25
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
704240, 434185, G10L 1508
Patent
active
060554983
ABSTRACT:
Pronunciation quality is automatically evaluated for an utterance of speech based on one or more pronunciation scores. One type of pronunciation score is based on duration of acoustic units. Examples of acoustic units include phones and syllables. Another type of pronunciation score is based on a posterior probability that a piece of input speech corresponds to a certain model, such as a hidden Markov model, given the piece of input speech. Speech may be segmented into phones and syllable for evaluation with respect to the models. The utterance of speech may be an arbitrary utterance made up of a sequence of words which had not been encountered before. Pronunciation scores are converted into grades as would be assigned by human graders. Pronunciation quality may be evaluated in a client-server language instruction environment.
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Digalakis Vassilios
Franco Horacio
Neumeyer Leonardo
Price Patti
Weintraub Mitchel
Allen Kenneth R.
Hudspeth David R.
SRI - International
Storm Donald L.
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