Oscillating Statistical Moments for Speech Polarity Detection

  • Thomas Drugman
  • Thierry Dutoit
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7015)


An inversion of the speech polarity may have a dramatic detrimental effect on the performance of various techniques of speech processing. An automatic method for determining the speech polarity (which is dependent upon the recording setup) is thus required as a preliminary step for ensuring the well-behaviour of such techniques. This paper proposes a new approach of polarity detection relying on oscillating statistical moments. These moments have the property to oscillate at the local fundamental frequency and to exhibit a phase shift which depends on the speech polarity. This dependency stems from the introduction of non-linearity or higher-order statistics in the moment calculation. The resulting method is shown on 10 speech corpora to provide a substantial improvement compared to state-of-the-art techniques.


Speech Signal Statistical Moment Vocal Tract Speech Synthesis Emotional Speech 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Thomas Drugman
    • 1
  • Thierry Dutoit
    • 1
  1. 1.TCTS LabUniversity of MonsBelgium

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