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Close range sounds, wind, and fast movements of the microphone boom, all may 
cause interfering noises. To avoid these unwanted sounds, windscreen accessories 
are available. 
 Typically, they are made out of open-cell polyurethane foam. These windscreens 
do not cause interfering resonances and do not influence the directional 
pattern. Only in the upper frequency range is the output level slightly 
attenuated.
 
 The wind noise attenuation was measured without electrical filtering in a 
turbulent air stream traveling at 20 km/h, generated by a noiseless wind 
machine.
 
 Wind noise attenuation 27 dB. Attenuation at 15 kHz approx. 3 dB. Diameter 90 
mm. Color black.
 
 Order Information
 WS 89 black Cat. No. 007197
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