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Updated: Jun 18, 2026
07:52
An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
Published on: March 13, 2026
A system to simulate and reproduce audio-visual environments for spatial hearing research
Bernhard U Seeber1, Stefan Kerber, Ervin R Hafter
1Auditory Perception Lab, Department of Psychology, University of California at Berkeley, Berkeley, CA 94530-1650, USA. seeber@ihr.mrc.ac.uk
Hearing Research
|November 14, 2009
Summary
The Simulated Open-Field Environment (SOFE) enables precise sound playback for hearing research. This setup facilitates accurate comparisons of listeners, with or without hearing devices, using custom software and advanced acoustics.
Area of Science:
- Acoustics
- Auditory Neuroscience
- Human-Computer Interaction
Background:
- Accurate sound reproduction is crucial for hearing research.
- Existing setups may not fully capture individual auditory characteristics or room acoustics.
- The need for flexible, high-fidelity audio-visual research tools is growing.
Purpose of the Study:
- To describe the implementation and capabilities of the Simulated Open-Field Environment (SOFE).
- To highlight the SOFE's utility for auditory, spatial hearing, and audio-visual research.
- To discuss the technical and acoustical requirements for advanced sound playback in research.
Main Methods:
- Utilizing an anechoic chamber with multiple calibrated loudspeakers for free-field sound playback.
- Employing custom calibration software for individual loudspeaker equalization.
- Integrating room simulation software to replicate spatio-temporal reflection patterns.
- Incorporating a video projection facility for auditory-visual interaction studies.
Main Results:
- Successful implementation of the SOFE setup in two research projects.
- Demonstrated ability to play sounds at calibrated levels across a wide frequency range.
- Facilitated easy and accurate comparison between listeners with and without hearing devices.
- SOFE proved to be a versatile tool for various auditory research paradigms.
Conclusions:
- The SOFE provides a robust platform for high-fidelity sound playback in hearing research.
- Its flexible software control enables rapid experimental development.
- The system supports research into individual hearing differences, spatial hearing, and audio-visual integration.
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