A Time-Frequency Auditory Model Using Wavelet Packets

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    Abstract

    A time-frequency auditory model is presented. The model uses the wavelet packet analysis as the preprocessor. The auditory filters are modelled by the rounded exponential filters, and the excitation is smoothed by a window function. By comparing time-frequency excitation patterns it is shown that the change in the time-frequency excitation pattern introduced when a test tone at masked threshold is added to the masker is approximately equal to 7 dB for all types of maskers. The classic detection ratio therefore overrates the detection efficiency of the auditory system.
    Original languageEnglish
    JournalJournal of the Audio Engineering Society
    Volume44
    Issue number1/2
    Pages (from-to)37-50
    ISSN1549-4950
    Publication statusPublished - 1996
    Event97th Convention of the Audio Engineering Society - San Francisco
    Duration: 1 Jan 1994 → …

    Conference

    Conference97th Convention of the Audio Engineering Society
    CitySan Francisco
    Period01/01/1994 → …

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