| Paper: | SP-P3.13 (ICASSP 2003 Paper) | ||
| Session: | Topics in Speaker and Langauge Recognition | ||
| Time: | Tuesday, May 18, 15:30 - 17:30 | ||
| Presentation: | Poster (ICASSP 2003 Presentation) | ||
| Topic: | Speech Processing: Adaptation/Normalization | ||
| Title: | SPEAKER ADAPTATION BY HIERARCHICAL EIGENVOICE | ||
| Authors: | Yoshifumi Onishi; NEC Corporation | ||
| Ken-ichi Iso; NEC Corporation | |||
| Abstract: | We propose a novel speaker adaptation method, Hierarchical EigenVoice (HEV). This method extends the EigenVoice through clustering the Gaussian components of HMMs into a hierarchical tree structure. It enables to autonomously control a number of adaptation parameters(model complexity) depending on the amount of adaptation utterances from a new speaker. The experimental results of Japanese large vocabulary continuous speech recognition confirmed the significant performance increase in all range of the adaptation utterance amounts compared with the conventional speaker adaptation methods. | ||
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