CAPTURING AND MODELING A THREE-DIMENSIONAL STATIONARY NOISE SOURCE DIRECTIVITY PATTERN WITH A DYNAMIC ARRAY IN THE NEAR FIELD

TL;DRAbstract

Capturing and Modeling a Three-Dimensional Stationary Noise Source Directivity Pattern with a Dynamic Array in the Near Field.The author has studied several legacy landmark methodologies to develop an original measurement technique.Spherical harmonics modeling practices were leveraged to accurately represent a source directivity pattern.In this thesis a lightweight microphone measurement array that was manually maneuvered around a static noise source was employed.The measurement technique consisted of inserting a head-tracker sensor onto the microphone array to allow the location of the captured acoustic Sound Pressure Level (SPL) to be investigated.By leveraging the historical methodologies the acoustic SPL and location data collected with this technique were processes to represent a directivity pattern of the compressor source chosen.The results indicated that the measurement technique is valid for capturing acoustic SPL and location data of a static noise source with a dynamic array

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