Understanding acoustic events and monitoring their occurrence is a useful aspect of many research projects. In particular, acoustic goniometry allows researchers to determine the source of an event based solely on the sound it produces. The vast majority of acoustic goniometry research projects used custom hardware targeted to the specific application under test. Unfortunately, due to the wide range of sensing applications, a flexible general purpose hardware/firmware system does not exist for this purpose. This article focuses on the development of such a system which encourages the continued exploration of general purpose hardware/firmware and lowers barriers to research in projects requiring the use of acoustic goniometry. Simulations have been employed to verify system feasibility, and a complete hardware implementation of the acoustic goniometer has been designed and field tested. The results are reported, and suggested areas for improvement and further exploration are discussed.
This document was originally published in Sensors by the Multidisciplinary Digital Publishing Institute (MDPI). This work is provided under a Creative Commons Attribution 4.0 license. Details regarding the use of this work can be found at: http://creativecommons.org/licenses/by/4.0/. doi: 10.3390/s16050622
Pook, Michael L. and Loo, Sin Ming. (2016). "A Small Acoustic Goniometer for General Purpose Research". Sensors, 16(5), 622-1 - 622-22. http://dx.doi.org/10.3390/s16050622