Publications
Development of a technique to minimise the wind-induced noise in shielded microphones
S.V. Alamshah, A.C. Zander, V.V. Lenchine (2013)
Proceedings of Acoustics 2013, Victor Harbor, SA, 17-20 NovemberAbstract:
Environmental noise measurements are usually performed in atmospheric conditions where wind and thus turbulent flow over the microphone is present. In such conditions the measured noise is highly affected by the wind-induced noise generated by turbulence structures present in the flow and microphone generated wakes. A novel approach has been employed to distinguish the contribution of wind-induced noise from the acoustic signal using Incoherent Output Power analysis between two microphone signals. Various experimental arrangements were investigated to examine the influence of the experimental parameters on the results obtained. The technique was successfully tested and validated in a series of indoor experiments in a small anechoic wind tunnel. Finally, a new approach for minimising wind-induced noise using the Coherent Output Power between two shielded microphones is proposed and tested.
This material is now only available to staff and students of the University of
Adelaide.
Should you wish to receive a copy, please contact the
AVC Group webmaster.
Note that if this article is under review, then it cannot be released and email requests will not be answered.
Published Document - NOT available for public access
