Speech recognition device and speech recognition method

A speech recognition and speech technology, applied in speech recognition, speech analysis, instruments, etc., can solve problems such as misrecognition, non-verbal sounds cannot get high sound scores, and the value of useless information sound scores increases, and achieve practical value high effect
CN1698097AInactive Publication Date: 2005-11-16PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Publication Date
2005-11-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The speech recognition apparatus ( 1 ) is equipped with the garbage acoustic model storage unit ( 110 ) storing the garbage acoustic model which learned the collection of the unnecessary words; the feature value calculation unit ( 101 ) which calculates the feature parameter necessary for recognition by acoustically analyzing the unidentified input speech including the non-language speech per frame which is a unit for speech analysis; the garbage acoustic score calculation unit ( 111 ) which calculates the garbage acoustic score by comparing the feature parameter and the garbage acoustic model; the garbage acoustic score correction unit ( 113 ) which corrects the garbage acoustic score calculated by the garbage acoustic score calculation unit ( 111 ) so as to raise it in the frame where the non-language speech is inputted; and the recognition result output unit ( 105 ) which outputs, as the recognition result of the unidentified input speech, the word string with the highest cumulative score of the language score, the word acoustic score, and the garbage acoustic score which is corrected by the garbage acoustic score correcting means.
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Description

technical field

[0001] The present invention relates to a speech recognition device and a speech recognition method for speech recognition of continuous word speech recognition of useless words that do not need to be distinguished in the allowable sense. Background technique

[0002] In the past, there is a word speech recognition device that uses a sound model learned in advance from a collection of useless words—a useless information sound model to deal with useless words that do not need to be distinguished in meaning (for example, please refer to 2 people such as (Japan) Inokami Naoki, " ガ一ベジHMMを用いた自由虺虺のの广语设计技术(Using Useless Information HMM in Natural Speech Sentences to Process Useless Words)”, Journal of Electronics, Information and Communications Society A, Vol.J77-A, No.2 , pp. 215-222, February 1994).

[0003] figure 1 It is a configuration diagram showing a conventional speech recognition device.

[0004] Such as figure 1 As shown, the speech recognition device ...

Claims

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