System and method for speech verification using out-of-vocabulary models

Autor: Lex Olorenshaw, Ruxin Chen, Xavier Menendez-Pidal, Duanpei Wu
Rok vydání: 2005
Předmět:
Zdroj: The Journal of the Acoustical Society of America. 117:3361
ISSN: 0001-4966
DOI: 10.1121/1.1948288
Popis: A system and method for speech verification using out-of-vocabulary models includes a speech recognizer that has a model bank with system vocabulary word models, a garbage model, and one or more noise models. The model bank may reject an utterance or other sound as an invalid vocabulary word when the model bank identifies the utterance or other sound as corresponding to the garbage model or the noise models. Initial noise models may be selectively combined into a pre-determined number of final noise model clusters to effectively reduce the number of noise models that are utilized by the model bank of the speech recognizer to verify system vocabulary words.
Databáze: OpenAIRE