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An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
Published on: March 13, 2026
Information transfer in auditoria and room-acoustical quality
1Applied Research in Acoustics LLC, 1222 4th Street SW, Washington, DC 20024-2302, USA. jason.e.summers@ariacoustics.com
The Journal of the Acoustical Society of America
|April 6, 2013
Summary
Room acoustics significantly impact information transfer rates in auditoria. Spatial hearing and source diversity enhance this rate by leveraging multipath effects, improving sound quality and realism.
Area of Science:
- Acoustics and Psychoacoustics
- Information Theory
- Auditory Perception
Background:
- Room acoustics are crucial for auditory experiences.
- Auditoria can be modeled as complex communication channels.
- Previous research has not fully explained the link between acoustics and information transfer.
Purpose of the Study:
- To hypothesize and outline a theory correlating room-acoustical quality with information-transfer rate.
- To investigate the role of multipath, spatial hearing, and source diversity in auditoria.
- To explain subjective preferences and perceived realism in acoustical environments.
Main Methods:
- Modeling auditoria as multiple-input multiple-output (MIMO) communication channels.
- Developing an information-transfer theory accounting for time-variant multipath, spatial hearing, and distributed directional sources.
- Analyzing the mechanisms of source diversity and spatial hearing in overcoming spatial resolution limits.
Main Results:
- Source diversity and spatial hearing are identified as key mechanisms increasing information-transfer rate via multipath.
- The theory's predictions align with existing findings on acoustics and auditory perception.
- Explanations are provided for how musical repertoire, ensemble size, and auralization influence subjective preference and realism.
Conclusions:
- A novel theory successfully links room acoustics to information-transfer rate.
- Multipath, when combined with spatial hearing and source diversity, enhances auditory information processing.
- The theory offers insights into subjective preferences and the realism of sound reproduction.
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