Producing wind noise measurements for microphones that correlate well with practical use has always proved difficult. Characterizing the noise numerically, rather than spectrally, has proved even harder. This paper explores some novel approaches to both problems. The airflow patterns of a newly designed wind generator are mapped, and a simple method of producing turbulent flow from a laminar stream is demonstrated. In order to characterize the wind noise numerically a dual number approach is explored as a possibility. This takes the spectral curves for a protected and unprotected microphone in an airstream, and produces two numbers: one for the level of noise reduction, and a second one for the accuracy with which the two curves track, duly corrected for audibility.
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