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Handling Noise Analysis in Large Cavity Microphone Windshields. Improved Solution

Pressure gradient microphones are well known to be highly sensitive to vibrations. Respectable suspensions are made in to create the best isolation possible, but when the microphone is placed inside a large cavity windshield, the external skin behaves as a drum excited by the vibrations of the support (boom or stand). As a consequence, structure-borne noise is also transmitted acoustically to the microphone, due to its hard proximity effect. Some theoretical aspects and practical measurements are presented, in conjunction with a proposed improved solution.

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