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  • Research Article
  • Open Access

Accuracy of MFCC-Based Speaker Recognition in Series 60 Device

  • 1Email author,
  • 1,
  • 1 and
  • 1
EURASIP Journal on Advances in Signal Processing20052005:878210

  • Received: 1 October 2004
  • Published:


A fixed point implementation of speaker recognition based on MFCC signal processing is considered. We analyze the numerical error of the MFCC and its effect on the recognition accuracy. Techniques to reduce the information loss in a converted fixed point implementation are introduced. We increase the signal processing accuracy by adjusting the ratio of presentation accuracy of the operators and the signal. The signal processing error is found out to be more important to the speaker recognition accuracy than the error in the classification algorithm. The results are verified by applying the alternative technique to speech data. We also discuss the specific programming requirements set up by the Symbian and Series 60.

Keywords and phrases

  • speaker identification
  • fixed point arithmetic
  • round-off error
  • MFCC
  • FFT
  • Symbian

Authors’ Affiliations

Department of Computer Science, University of Joensuu, P.O. Box 111, Joensuu, 80101, Finland


© Saastamoinen et al. 2005