Channel compensation of speaker identification based on maximum a posteriori
To solve the effect of channel changes on the performance of speaker identification system , apply the method of maximum a posteriori to specific channel compensation.First, setup a standard channel, then, use the distribution of deviation of other channel and standard channel as experience knowledg...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2009-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74654290/ |
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| Summary: | To solve the effect of channel changes on the performance of speaker identification system , apply the method of maximum a posteriori to specific channel compensation.First, setup a standard channel, then, use the distribution of deviation of other channel and standard channel as experience knowledge, and obtain the deviation of current channel by a few adaptive data, use these deviations to adjust the characteristic to gain the goal of compensation.The results show that adaptive data in 1s, it has a discrimination of 89.1%, above the method of cepstrum average reduction by 4.2%,with the increasing of self-adaptive, the performance of this system can be improved. |
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| ISSN: | 1000-436X |