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1.

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2.

What’s behind it


These hearing protection simulations were developed using CeoTronics AG’s special signal processing algorithms. The noises recorded were analyzed and processed using an octave filter bank. The in-phase synthesis of the dampened signals was carried out with the help of a forward-backward filtering technique.
 

 

 


As data for the soundproofing the mean insulation figure was taken from the parameters, which were determined in the framework of the type examination for these products by an external accredited test lab by means of tests on 16 subjects. This means that the playback of the individual noise scenarios is very close to reality in terms of sound reduction.
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