METHOD AND SYSTEM FOR SPEECH RECOGNITION
First Claim
1. A method for speech recognition, comprising:
- capturing at least one vocal characteristic from a speech data so as to identify a speaker identification of the speech data;
recognizing a speech in the speech data by using a first acoustic model;
calculating a confidence score of the speech according to the recognized speech and the speech data and determining whether the confidence score is over a first threshold; and
if the confidence score is over the first threshold, collecting the recognized speech and the speech data and performing a speaker adaptation on a second acoustic model corresponding to the speaker identification by using the speech data.
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Abstract
A method and a system for speech recognition are provided. In the method, vocal characteristics are captured from speech data and used to identify a speaker identification of the speech data. Next, a first acoustic model is used to recognize a speech in the speech data. According to the recognized speech and the speech data, a confidence score of the speech recognition is calculated and it is determined whether the confidence score is over a threshold. If the confidence score is over the threshold, the recognized speech and the speech data are collected, and the collected speech data is used for performing a speaker adaptation on a second acoustic model corresponding to the speaker identification.
145 Citations
20 Claims
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1. A method for speech recognition, comprising:
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capturing at least one vocal characteristic from a speech data so as to identify a speaker identification of the speech data; recognizing a speech in the speech data by using a first acoustic model; calculating a confidence score of the speech according to the recognized speech and the speech data and determining whether the confidence score is over a first threshold; and if the confidence score is over the first threshold, collecting the recognized speech and the speech data and performing a speaker adaptation on a second acoustic model corresponding to the speaker identification by using the speech data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for speech recognition, comprising:
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a speaker identification module, capturing at least one vocal characteristic from a speech data so as to identify a speaker identification of the speech data; a speech recognition module, recognizing a speech in the speech data by using a first acoustic model; an utterance verification module, calculating a confidence score of the speech according to the speech recognized by the speech recognition module and the speech data and determining whether the confidence score is over a first threshold; a data collection module, collecting the speech recognized by the speech recognition module and the speech data when the utterance verification module determines that the confidence score is over the first threshold; and a speaker adaptation module, performing a speaker adaptation on a second acoustic model corresponding to the speaker identification by using the speech data collected by the data collection module. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification