Humidity Characteristics; Reduction Of Wind Noise By Windscreen - Acoustic Research Ngara User Manual

7.7.4 Humidity Characteristics

The humidity characteristics of a microphone indicate how sensitivity changes at various humidity levels.
Figure 45 shows the humidity characteristics for a UC-53A microphone at 250Hz.

7.7.5 Reduction of Wind Noise by Windscreen

During outdoor measurements wind noise can falsify measurement results. To counter such problems, the recom-
mended windscreen WS-10 should be mounted on the microphone. The characteristics of the WS-10 windscreen are
shown below. The attenuation of wind noise produced by the windscreen is about 25dB with frequency weighting A
and 15dB with frequency weighting C.
Version — 25-7cd7566
Figure 44: UC-53A Thermal Response
Figure 45: UC-53A Humidity Response
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