发明名称 |
METHODS, SYSTEMS, AND CIRCUITS FOR SPEAKER DEPENDENT VOICE RECOGNITION WITH A SINGLE LEXICON |
摘要 |
Embodiments reduce the complexity of speaker dependent speech recognition systems and methods by representing the code word (i.e., the word to be recognized) using a single Gaussian Mixture Model (GMM) which is adapted from a Universal Background Model (UBM). Only the parameters of the GMM need to be stored. Further reduction in computation is achieved by only checking the GMM component that is relevant to the keyword template. In this scheme, keyword template is represented by a sequence of the index of best performing component of the GMM of the keyword model. Only one template is saved by combining the registration template using Longest Common Sequence algorithm. The quality of the word model is continuously updated by performing expectation maximization iteration using the test word which is accepted as keyword model. |
申请公布号 |
US2014200890(A1) |
申请公布日期 |
2014.07.17 |
申请号 |
US201313854133 |
申请日期 |
2013.03.31 |
申请人 |
STMicroelectronics Asia Pacific Pte Ltd. |
发明人 |
Kurniawati Evelyn;George Sapna |
分类号 |
G10L15/14 |
主分类号 |
G10L15/14 |
代理机构 |
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代理人 |
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主权项 |
1. A method of speaker dependent speech recognition where the word model is represented by a single Gaussian Mixture Model adapted from the Universal Background Model. |
地址 |
Singapore SG |