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Regularized estimation of cepstrum envelope from discrete frequency points

  • Telecom Paris

Research output: Contribution to conferencePaperpeer-review

54 Citations (Scopus)

Abstract

This paper presents an improved method for the estimation of a continuous frequency-envelope when the value of this envelope is specified only at discrete frequencies. It is based on the Galas/Rodet approach which consists of fitting a cepstral amplitude envelope to the specified frequency points by minimizing a frequency-domain least-squares criterion. This paper introduces a regularization technique which increases the robustness of the estimation procedure. Used in combination with a warped frequency-scale, the proposed method is shown to provide an efficient model for the frequency envelope of speech signals.

Original languageEnglish
Pages4
Number of pages4
Publication statusPublished - 1 Dec 1995
EventProceedings of the 1995 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics - New Paltz, NY, USA
Duration: 15 Oct 199518 Oct 1995

Conference

ConferenceProceedings of the 1995 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics
CityNew Paltz, NY, USA
Period15/10/9518/10/95

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