An approach for partial tracking in low-rate parametric audio coding for wireless multimedia applications

Subayal Khan, Kaveh Ghaboosi, Zaheer Khan

    Research output: Contribution to conferenceConference articleScientificpeer-review

    Abstract

    MPEG-4 committee has adopted HILN as the Low Rate Parametric Audio Codec and has shown enormous potential for next generation wireless multimedia communications. HILN algorithm tracks all partials in parallel over time axis. In this article a novel partial tracking approach has been investigated and applied to extract partial trajectories in harmonic instruments. The algorithm instead of tracking all partials in parallel like HILN, records amplitude, phase and frequency information of a single partial over time. The evolving trajectories of the partials are estimated by a well known technique call Berg’s Algorithm. This novel approach has been tested with harmonic instruments having well defined non crossing partials. The algorithm acts as a framework which could incorporate other estimation techniques like Autocorrelation and Covariance method though it is beyond the scope of this paper. The scope of this paper is limited to the description of novel algorithm integrated with Berg’s approach as estimation technique. A detailed comparison of proposed algorithm with MPEG-4 HILN Low Rate Parametric Audio Codec will be presented in future research.
    Original languageEnglish
    Publication statusPublished - 2009
    MoE publication typeNot Eligible
    Event12th International Symposium on Wireless Personal Multimedia Communications, WPMC 2009 - Sendai, Japan
    Duration: 7 Sep 200910 Sep 2009

    Conference

    Conference12th International Symposium on Wireless Personal Multimedia Communications, WPMC 2009
    Abbreviated titleWPMC 2009
    CountryJapan
    CitySendai
    Period7/09/0910/09/09

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    Keywords

    • Partial tracking
    • MPEG-4
    • HILN
    • Berg’s algorithm
    • harmonic instruments

    Cite this

    Khan, S., Ghaboosi, K., & Khan, Z. (2009). An approach for partial tracking in low-rate parametric audio coding for wireless multimedia applications. Paper presented at 12th International Symposium on Wireless Personal Multimedia Communications, WPMC 2009, Sendai, Japan.