Lithuanian Speech Synthesis by Computer using Additive Synthesis

  • G. Pyz VU Institute of Mathematics and Informatics
  • V. Simonyte Lithuanian University of Educational Sciences
  • V. Slivinskas Lithuanian University of Educational Sciences
Keywords: Speech synthesis, Lithuanian language, phoneme, Fourier series, additive synthesis method

Abstract

We present a new Lithuanian speech phoneme synthesis method based on the principle of additive synthesis in this paper. An assumption is made that phoneme models consist of the sum of harmonics which could be generated by properly chosen formant synthesizer parameters. In order to estimate the synthesizer parameters, we use the real sound signals that are expanded into harmonics by the inverse fast Fourier transform method. The harmonic synthesizer parameters (amplitudes, damping factor, and phases) are estimated by Levenberg-Marquardt method. We present an example of the synthesized female vowel /a/ and compare it with the true sound signal.

DOI: http://dx.doi.org/10.5755/j01.eee.18.8.2631

Published
2012-10-26
Section
SYSTEM ENGINEERING, COMPUTER TECHNOLOGY