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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nakamura, S. Shikano, K. |
| Copyright Year | 1989 |
| Description | Author affiliation: ATR Interpreting Telephony Res. Lab., Kyoto, Japan (Nakamura, S.; Shikano, K.) |
| Abstract | The authors propose a speaker adaptation algorithm which does not depend on speech recognition algorithms. The proposed spectral mapping algorithm is based on three ideas: (1) accurate representation of the input vector by separate vector quantization and fuzzy vector quantization, (2) continuous spectral mapping from one speaker to another by fuzzy mapping, and (3) accurate establishment of spectral correspondence based on the fuzzy relationship of the membership function obtained from supervised training. The spectrum dynamic features are also utilized. The algorithm is applied to hidden Markov models (HMMs) and neural networks and evaluated using a database of 216 phonetically balanced words and 5240 important Japanese words uttered by three speakers. The HMM speaker adapted recognition rate for /b,d,g/ is 79.5%. The average recognition rate for the top-three choices is about 91%. The algorithm was applied to neural networks and resulted in almost the same performance. The algorithm was also applied to voice conversion, and a preference score of 65.6% was obtained.< |
| Starting Page | 89 |
| Ending Page | 92 |
| File Size | 458883 |
| Page Count | 4 |
| File Format | |
| ISSN | 15206149 |
| DOI | 10.1109/ICASSP.1989.266370 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1989-05-23 |
| Publisher Place | UK |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Hidden Markov models Neural networks Vector quantization Histograms Speech recognition Auditory system System testing Telephony Laboratories Spatial databases |
| Content Type | Text |
| Resource Type | Article |
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