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Speaker normalization using efficient frequency warping procedures
Abstract
In an effort to reduce the degradation in speech recognition performance caused by variation in vocal tract shape among speakers, a frequency warping approach to speaker normalization is investigated. A set of low complexity, maximum likelihood based frequency warping procedures have been applied to speaker normalization for a telephone based connected digit recognition task. This paper presents an efficient means for estimating a linear frequency warping factor and a simple mechanism for implementing frequency warping by modifying the filter-bank in mel-frequency cepstrum feature analysis. An experimental study comparing these techniques to other well-known techniques for reducing variability is described. The results showed that frequency warping was consistently able to reduce word error rate by 20% even for very short utterances.
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Cited by
Automatic speech recognition and speech variability: A review
Benzeghiba, M., De Mori, R., Deroo, O., Dupont, S., Erbes, T., Jouvet, D., Fissore, L., Laface, P., Mertins, A., Ris, C., et al. (2007) · Speech Communication · doi:10.1016/j.specom.2007.02.006 · Cited by 529
Self-citationA frequency warping approach to speaker normalization
Lee, L., & Rose, R. (1998) · IEEE Transactions on Speech and Audio Processing · doi:10.1109/89.650310 · Cited by 294
Self-citationCluster adaptive training of hidden Markov models
Gales, M. J. F. (2000) · IEEE Transactions on Speech and Audio Processing · doi:10.1109/89.848223 · Cited by 255
Geng, M., Xie, X., Ye, Z., Wang, T., Li, G., Hu, S., Liu, X., & Meng, H. (2022) · IEEE/ACM Transactions on Audio Speech and Language Processing · doi:10.1109/taslp.2022.3195113 · Cited by 48
Towards age-independent acoustic modeling
Gerosa, M., Giuliani, D., & Brugnara, F. (2009) · Speech Communication · doi:10.1016/j.specom.2009.01.006 · Cited by 28
Metadata
- Authors
- Lee, L., & Rose, R. C.
- Venue
- 1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings
- Publisher
- IEEE
- Published
- 2002-12-24
- Volume
- 1
- Pages
- 353-356
- ISSN
- 1520-6149 (ISSN-L)
- OpenAlex
- W2106119541
- Cited by
- 266
- References
- 0
- FWCI
- 16.04
- Type
- conference paper
- Language
- en
- Open access
- closed
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- Lee, L., & Rose, R. C. (2002). Speaker normalization using efficient frequency warping procedures. 1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings. https://doi.org/10.1109/icassp.1996.541105
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