Article
Accurate vocal compensation for sound intensity loss with increasing distance in natural environments
The Journal of the Acoustical Society of America
(2007)
Abstract
Human abilities to adjust vocal output to compensate for intensity losses due to sound propagation over distance were investigated. Ten normally hearing adult participants were able to compensate for propagation losses ranging from −1.8 to −6.4dB/doubling source distance over a range of distances from 1 to 8m. The compensation was performed to within 1.2dB of accuracy on average across all participants, distances, and propagation loss conditions with no practice or explicit training. These results suggest that natural vocal communication processes of humans may incorporate tacit knowledge of physical sound propagationproperties more sophisticated than previously supposed.
Keywords
- Sound propagation,
- acoustical measurements,
- loudspeakers,
- microphones,
- acoustic noise rating
Disciplines
Publication Date
2007
Publisher Statement
Copyright 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Citation Information
Pavel Zahorik and Jonathan W. Kelly. "Accurate vocal compensation for sound intensity loss with increasing distance in natural environments" The Journal of the Acoustical Society of America Vol. 122 (2007) Available at: http://works.bepress.com/jonathan_kelly/8/