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Measurement Techniques for Evaluating Microphone Performance in Windy Environments

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The traditional solution for controlling microphone wind response (foam windshield) is of limited benefit in minature applications. The use of ECM and MEMS type microphones is typically associated with DSP-type solutions to reduce the unwanted output from air mass flow. Such solutions vary widely in their effectiveness. The situation is compounded by the range of techniques in current use to evaluate microphone wind response. This paper discusses the essential elements necessary for consistent microphone wind measurements and proposes a standard measurement technique that will be of use to all developers and manufacturers concerned with controlling microphone wind noise. Practical implementation of the technique and results obtained for a range of microphones are presented.

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