Abstract
This work explores the use of speech enhancement for enhancing degraded speech which may be useful for text dependent speaker verification system. The degradation may be due to noise or background speech. The text dependent speaker verification is based on the dynamic time warping (DTW) method. Hence there is a necessity of the end point detection. The end point detection can be performed easily if the speech is clean. However the presence of degradation tends to give errors in the estimation of the end points and this error propagates into the overall accuracy of the speaker verification system. Temporal and spectral enhancement is performed on the degraded speech so that ideally the nature of the enhanced speech will be similar to the clean speech. Results show that the temporal and spectral processing methods do contribute to the task by eliminating the degradation and improved accuracy is obtained for the text dependent speaker verification system using DTW.
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Acknowledgements
The authors would like to thank Mr. Rajib Sharma, in the EEE department of IITG, Guwahati, for his help in making this work come to fruition.
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Khonglah, B.K., Bhukya, R.K. & Prasanna, S.R.M. Processing degraded speech for text dependent speaker verification. Int J Speech Technol 20, 839–850 (2017). https://doi.org/10.1007/s10772-017-9451-z
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DOI: https://doi.org/10.1007/s10772-017-9451-z