A Kalman-based fundamental frequency estimation algorithm

Liming Shi, Jesper K. Nielsen, Jesper R. Jensen, Max A. Little, Mads G. Christensen

    Research output: Chapter in Book/Published conference outputConference publication

    Abstract

    Fundamental frequency estimation is an important task in speech and audio analysis. Harmonic model-based methods typically have superior estimation accuracy. However, such methods usually assume that the fundamental frequency and amplitudes are stationary over a short time frame. In this paper, we propose a Kalman filter-based fundamental frequency estimation algorithm using the harmonic model, where the fundamental frequency and amplitudes can be truly nonstationary by modeling their time variations as firstorder Markov chains. The Kalman observation equation is derived from the harmonic model and formulated as a compact nonlinear matrix form, which is further used to derive an extended Kalman filter. Detailed and continuous fundamental frequency and amplitude estimates for speech, the sustained vowel /a/ and solo musical tones with vibrato are demonstrated.

    Original languageEnglish
    Title of host publication2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017
    PublisherIEEE
    Pages314-318
    Number of pages5
    Volume2017-October
    ISBN (Electronic)9781538616321
    DOIs
    Publication statusPublished - 11 Dec 2017
    Event2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017 - New Paltz, United States
    Duration: 15 Oct 201718 Oct 2017

    Conference

    Conference2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017
    Country/TerritoryUnited States
    CityNew Paltz
    Period15/10/1718/10/17

    Bibliographical note

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    Keywords

    • extended Kalman filter
    • Fundamental frequency estimation
    • harmonic model

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