Design the Correction Factors to Improve the Perfrmance of G.729B Voice Activity Detector


Hassan Farsi;Mohammad Amin Mozaffarian;


Discontinuous transmission based on speech/pause detection represents a valid solution to improve the spectral efficiency of new-generation wireless communication systems.One of the modern standards that used in speech processing systems as Voice Activity Detector (VAD) is ITU-T G.729B.In this paper,we try to improve the performance of this standard in low SNRs by minimum changes.This modification continued by new coefficients named Correction Factors.We compare the results of our proposed method in various types of noises by other standards.


Voice Activity Detection;Correction Factors;Low SNRs;True Envelope LPC;Periodicity Estimation


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Total: 16 articles

  • [1] Jong Won Shin;;Joon-Hyuk Chang;;Nam Soo Kim, Voice activity detection based on a family of parametric distributions, Pattern Recognition Letters,
  • [2] F Beritelli;;S Casale;;G Ruggeri, A psychoacoustic auditory model to evaluate the performance of a voice activity detector, Signal Processing,
  • [3] H. Farsi;M. A. Mozaffarian;H. Rahmani, A Novel Method to Modify VAD used in ITU-T G.729B for Low SNRs, International Journal of Computers and Communications,
  • [4] R. Tucker, "Voice activity detection using a periodicity measure,", Proc. Inst. Elect. Eng. 1992,


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