A frequency warping approach to speaker normalization

@article{Lee1998AFW,
  title={A frequency warping approach to speaker normalization},
  author={Li Lee and Richard C. Rose},
  journal={IEEE Trans. Speech and Audio Processing},
  year={1998},
  volume={6},
  pages={49-60}
}
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… CONTINUE READING
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  • The results have shown that frequency warping is consistently able to reduce word error rate by 20% even for very short utterances.

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