Skip to content
University of Maryland LibrariesDigital Repository at the University of Maryland
    • Login
    View Item 
    •   DRUM
    • A. James Clark School of Engineering
    • Institute for Systems Research Technical Reports
    • View Item
    •   DRUM
    • A. James Clark School of Engineering
    • Institute for Systems Research Technical Reports
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Stereausis: Binaural Processing without Neural Delays.

    Thumbnail
    View/Open
    TR_87-165.pdf (2.131Mb)
    No. of downloads: 806

    Date
    1987
    Author
    Shamma, Shihab A.
    Shen, Naiming
    Gopalaswamy, Preetham
    Metadata
    Show full item record
    Abstract
    A biologically realistic neural network model is proposed for the binaural processing of interaural-time and level cues that closely resembles computational schemes suggested for atereopsis in vision. The network requires no neural delay lines to generate such attributes of binaural hearing as the lateralization of all frequencies, and the detection and enhancement of noisy signals. The two-dimensional network measures interaural differences by detecting the spatial disparities between the instantaneous outputs of the two ears. It achieves this by comparing systematically at various horizontal shifts, the spatiotemporal responses of the tonotopically ordered array of auditory-nerve- fibers. An alternative view of the network operation is that it computes approximately the cross-correlation between the responses of the two cochlei by combining an ipsilateral input at a given CF with contralateral inputs from locally off-CF locations. Thus, the network utilizes the delays already present in the travelling waves of the basilar membrane to extract the correlation function. Simulations of the network operation with various signals are presented; Physiological arguments in support of this scheme are also discussed.
    URI
    http://hdl.handle.net/1903/4670
    Collections
    • Institute for Systems Research Technical Reports

    DRUM is brought to you by the University of Maryland Libraries
    University of Maryland, College Park, MD 20742-7011 (301)314-1328.
    Please send us your comments.
    Web Accessibility
     

     

    Browse

    All of DRUMCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister
    Pages
    About DRUMAbout Download Statistics

    DRUM is brought to you by the University of Maryland Libraries
    University of Maryland, College Park, MD 20742-7011 (301)314-1328.
    Please send us your comments.
    Web Accessibility