Design and performance evaluation of higher order ambisonics system using 32-channel array
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Authors
Bright, Gregory
Issue Date
2014-12
Type
Electronic thesis
Thesis
Thesis
Language
ENG
Keywords
Architectural sciences
Alternative Title
Abstract
Traditionally, room acoustic data is recorded via some combination of omnidirectional and figure-of-eight microphones. However, a rigid sphere microphone array can be used to develop a more detailed analysis of a room or sound field. Two of the additional possibilities opened by the use of a spherical ambisonics system include the use of spherical beamforming, as well as the use of higher order ambisonics decoding schemes. This thesis highlights the theory behind the beaforming and decoding processes, as well as design and construction of a rigid sphere microphone array and corresponding preamplifier. The array and amplifier are then used to record data to allow for validation of the decoding and beamforming processes.
Description
December 2014
School of Architecture
School of Architecture
Full Citation
Publisher
Rensselaer Polytechnic Institute, Troy, NY