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    VLSI implementation of an AMDF pitch detector


    Smith, Tony and Gittel, Falko and Schwarzbacher, Andreas and Hilt, E. and Timoney, Joseph (2003) VLSI implementation of an AMDF pitch detector. In: Irish Signals and Systems Conference 2003, July 2003, University of Limerick, Limerick, Ireland.

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    Abstract

    Pitch detectors are used in a variety of speech processing applications such as speech recognition systems where the pitch of the speaker is used as one parameter for identification purposes. Furthermore, pitch detectors are also sued with adaptive filters to achieve high quality adaptive noise cancellation of speech signals. In voice conversion systems, pitch detection is an essential step since the pitch of the modified signal is altered to model the target voice. This paper describes a VLSI implementation of the computationally efficient and accurate pitch detection algorithm known as the Average Magnitude Difference Function (AMDF). The superior speed of a hardware pitch detect6or is essential particularly for use in real-time signal processing devices such as mobile phones.

    Item Type: Conference or Workshop Item (Paper)
    Keywords: Pitch detection; AMDF; VLSI; CMOS design;
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Faculty of Science and Engineering > Electronic Engineering
    Item ID: 4208
    Depositing User: Joseph Timoney
    Date Deposited: 20 Feb 2013 10:20
    Refereed: Yes
    URI:

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