Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015
Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
The Measurement and Calibration of Sound Reproducing Systems - July 2015
An Array Filtering Implementation of a Constant Beamwidth Acoustic Source
For acoustic arrays (microphones or loudspeakers), the main beam width of the radiation pattern is determined by the spacing between the elements in terms of lambda. Thus area coverage depends upon frequency. We have demonstrated that by controlling the spacing and frequency response of each element in an array, constant directivity of the main lobe over a wide frequency range can be achieved. Large powers can be achieved with relatively low energy densities at each element.
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