DEVICE AND METHOD OF MODELING ACOUSTIC CHARACTERISTICS WITH HMM AND COLLATING THE SAME WITH A VOICE CHARACTERISTIC VECTOR SEQUENCE

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説明

According to an embodiment, voice recognition apparatus includes units of: acoustic processing, voice interval detecting, dictionary, collating, search target selecting, storing and determining, and voice recognition method includes processes of: selecting a search range on basis of a beam search, setting and storing a standard frame, storing an output probability of a certain transition path, determining whether or not the output probability of a certain path is stored. Number of times of calculation of the output probability is reduced by selecting the search range on basis of the beam search, calculating the output probability of the certain transition path only once in an interval from when the standard frame is set to when the standard frame is renewed, and storing and using thus calculated value as an approximate value of the output probability in subsequent frames.

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詳細情報 詳細情報について

  • CRID
    1874242817219990656
  • DOI
    10.1121/1.4728401
  • ISSN
    00014966
  • データソース種別
    • OpenAIRE

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