Method for speech recognition
First Claim
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1. A computer-implemented method for speech recognition of a spoken expression, which comprises a first expression part and remaining expression parts to be recognized, comprising performing by a processor operations of:
- conducting a partial speech recognition on the first expression part using a Hidden-Markov-Model, wherein the remaining expression parts are covered by fill data, the partial speech recognition using a first vocabulary having a list of search terms for the first expression part;
selecting N best fitting hits for the first expression part from the list of search terms;
creating a second vocabulary, different than the first vocabulary, the second vocabulary comprising a list of search term combinations depending on the selected N best fitting hits for the first expression part, the second vocabulary having a list of search term combinations that covers the remaining expression parts previously covered by the fill data;
conducting a second speech recognition on the remaining expression parts using the second vocabulary; and
providing a result, including a speech-recognized result of the first expression part and a speech-recognized result of the remaining expression parts.
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Abstract
A method for the voice recognition of a spoken expression to be recognized, comprising a plurality of expression parts that are to be recognized. Partial voice recognition takes place on a first selected expression part, and depending on a selection of hits for the first expression part detected by the partial voice recognition, voice recognition on the first and further expression parts is executed.
24 Citations
16 Claims
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1. A computer-implemented method for speech recognition of a spoken expression, which comprises a first expression part and remaining expression parts to be recognized, comprising performing by a processor operations of:
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conducting a partial speech recognition on the first expression part using a Hidden-Markov-Model, wherein the remaining expression parts are covered by fill data, the partial speech recognition using a first vocabulary having a list of search terms for the first expression part; selecting N best fitting hits for the first expression part from the list of search terms; creating a second vocabulary, different than the first vocabulary, the second vocabulary comprising a list of search term combinations depending on the selected N best fitting hits for the first expression part, the second vocabulary having a list of search term combinations that covers the remaining expression parts previously covered by the fill data; conducting a second speech recognition on the remaining expression parts using the second vocabulary; and providing a result, including a speech-recognized result of the first expression part and a speech-recognized result of the remaining expression parts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A speech recognition device to recognize a spoken expression, which comprises a first expression part and remaining expression parts to be recognized, the speech recognition device comprising:
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a database including a memory and providing at least one of search terms and a phonemic transcription of the search terms; and a control unit connected to the database and configured to; conduct a partial speech recognition on the first expression part using a Hidden-Markov-Model, wherein the remaining expression parts are covered by fill data, the partial speech recognition using a first vocabulary having a list of search terms for the first expression part; select N best fitting hits for the first expression part from the list of search terms; create a second vocabulary, different than the first vocabulary, the second vocabulary comprising a list of search term combinations depending on the selected N best fitting hits for the first expression part, the second vocabulary having a list of search term combinations that covers the remaining expression parts previously covered by the fill data; conduct a second speech recognition on the remaining expression parts using the second vocabulary; and provide a result, including a speech-recognized result of the first expression part and a speech-recognized result of the remaining expression parts. - View Dependent Claims (11, 12, 13, 14)
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15. A computer readable storage medium storing a program, which when executed by a computer performs a method for speech recognition of a spoken expression, which comprises a first expression part and remaining expression parts to be recognized, the method comprising:
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conducting a partial speech recognition on the first expression part using a Hidden-Markov-Model wherein the remaining expression parts are covered by fill data, the partial speech recognition using a first vocabulary having a list of search terms for the first expression part; selecting N best fitting hits for the first expression part from the list of search terms; creating a second vocabulary, different than the first vocabulary, the second vocabulary comprising a list of search term combinations depending on the selected N best fitting hits for the first expression part, the second vocabulary having a list of search term combinations that covers the remaining expression parts previously covered by the fill data; conducting a second speech recognition on the remaining expression parts using the second vocabulary; and providing a result, including a speech-recognized result of the first expression part and a speech-recognized result of the remaining expression parts. - View Dependent Claims (16)
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Specification