Simplified Three-Microphone Acoustic Test Method
AbstractAccepted acoustic testing standards are available; however, they require specialized hardware and software that are typically out of reach economically to the occasional practitioner. What is needed is a simple and inexpensive screening method that can provide a quick comparison for rapid identification of the top candidates. This research reports on the development of an acoustical rapid-test method that achieves these objectives. The method is based upon a reformulation of the well-regarded three-microphone method. The new formulation reduces the number of required microphones to a single microphone and removes the need for simultaneous capture and extensive signal-processing analysis. The study compares the proposed simplified method to two standard methods and the three-microphone method. The results of the correlation analysis between the new method versus the original method produced a coefficient of determination of r2 = 0.994. A simulation study highlighted several unique accuracy advantages of this new proposed method in comparison to the existing standard methods. The proposed new method represents an easy-to-use technique that requires little in the way of equipment and can be set up with minimal training and expense. View Full-Text
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Pelletier, M.G.; Holt, G.A.; Wanjura, J.D. Simplified Three-Microphone Acoustic Test Method. Instruments 2017, 1, 4.
Pelletier MG, Holt GA, Wanjura JD. Simplified Three-Microphone Acoustic Test Method. Instruments. 2017; 1(1):4.Chicago/Turabian Style
Pelletier, Mathew G.; Holt, Greg A.; Wanjura, John D. 2017. "Simplified Three-Microphone Acoustic Test Method." Instruments 1, no. 1: 4.
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