Author(s)

William L. Martens, Densil Cabrera, Luis Miranda, Daniel Jimenez

The Faculty of Architecture, Design and Planning, The University of Sydney, Sydney, Australia.

A hemispherical array of 196 independent loudspeakers has been constructed for laboratory research on spatial hearing, auralization, sound-field quality and spatial audio signal processing. The array of small loudspeakers is supported by a geodesic frame with a radius is 2.4 m. With this relatively high spatial density of sound sources, spatially quantized rendering of sound fields should be viable for a variety of applications, and this paper considers the potential and limits of this approach in relation to human spatial hearing capacities. The paper also considers the combined use of multiple loudspeakers for the rendering low-frequency components of sound sources in order to extend the low-frequency response of the system.

Loudspeaker Array, Sound Field Control, Auralization, Spatial Hearing

Martens, W. , Cabrera, D. , Miranda, L. and Jimenez, D. (2015) Potential and Limits of a High-Density Hemispherical Array of Loudspeakers for Spatial Hearing and Auralization Research. Journal of Applied Mathematics and Physics, 3, 240-246. doi: 10.4236/jamp.2015.32035.