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Spatialized Auditory Displays

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 43908
Amount: $70,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1999
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1429 NW Gilman Blvd; Suite 265
Issaquah, WA 98027
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ben M Clopton
 (425) 392-9436
Business Contact
 Ben M. Clopton
Phone: (425) 392-9436
Research Institution
 University of Michigan
 
4118 EECS Building; 1301 Beal Street
Ann Arbor, MI 48109
United States

 Nonprofit College or University
Abstract

We will investigate the feasibility of a signal processing system that controls the perceived location of a virtual sound source for listeners wearing headphones. Starting from an approximate head-related transfer function (HRTF) individualized HRTFs will be adaptively approximated for observers in a psychophysical task. Average HRTFs have proven inadequate for consistently placing sound sources in azimuth and elevation, especially near the frontal midline. Recently developed adaptive algorithms permit the tailoring of generic HRTFs to individuals within training periods of acceptable durations. These transfer functions will be modeled as binaural spatial filters and implemented in real time using DSP processors under the control of a PC. This system will be used for preliminary psychophysical testing. Future systems will incorporate dynamic head position to further enhance the realization of spatialized auditory displays.

* Information listed above is at the time of submission. *

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