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Active localization of virtual sounds.

J M Loomis1, C Hebert, J G Cicinelli

  • 1University of California, Santa Barbara 93106.

The Journal of the Acoustical Society of America
|October 1, 1990
PubMed
Summary
This summary is machine-generated.

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Simple virtual sound displays effectively create the impression of external sounds for easy navigation. This study shows that simulating ear canal effects is not essential for accurate sound localization outside the head.

Area of Science:

  • Auditory Perception
  • Virtual Acoustics
  • Human-Computer Interaction

Background:

  • Accurate sound localization is crucial for navigating virtual environments.
  • Previous research often focused on complex models, including pinna effects, for realistic sound simulation.

Purpose of the Study:

  • To describe a simple virtual sound display system.
  • To evaluate the effectiveness of this display in creating a sense of external sound and enabling user locomotion.
  • To determine if complex pinna simulation is necessary for extracranial sound localization.

Main Methods:

  • Development of a virtual sound display using a microcomputer and analog hardware.
  • Implementation of primary sound localization cues in the ear-level plane.
  • Conducting an experiment comparing user homing behavior to virtual and real sounds.

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Main Results:

  • Informal user observations indicated ease of locomotion towards virtual sounds.
  • Objective experimental data supported the effectiveness of the display.
  • Users could easily locomote towards virtual sounds, demonstrating effective spatialization.

Conclusions:

  • Simple virtual sound displays are effective in generating the perception of external sounds.
  • User locomotion towards these simulated sounds is facile.
  • Simulation of direction-dependent spectral shaping by the pinnae is not a prerequisite for extracranial sound localization.