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Robust speaker verification in low bit rate channels

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3 Author(s)
Altincay, H. ; Adv. Technol. Res. & Dev. Inst., Eastern Mediterranean Univ., Mersin, Turkey ; Ergun, C. ; Ahmad, W.

The coder mismatch problem in speaker verification systems is addressed. A speech coder detector is proposed that correctly classifies the coding scheme used in a given utterance having a length of 3 s with an average rate of 93%. It is shown that, with the use of the proposed speech coder detector, the average speaker verification accuracy over a pool of four different coders used in low bit rate communication channels is increased close to the average accuracy obtained in the ideal matched case.

Published in:

Electronics Letters  (Volume:39 ,  Issue: 6 )

Date of Publication:

20 March 2003

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