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Spectrum adaptation

In order to take into account the different frequency spectra of residential and traffic noise, so-called spectrum adaptation values C and Ctr for the building acoustics range of 100-3150 Hz were introduced in accordance with DIN EN ISO 717-1. They are used to adjust the weighted sound reduction index over a frequency range of 100-3150 Hz. The spectrum adaptation values C100-5000 and Ctr100-5000 additionally take into account the spectrum in the frequency range of 100-5000 Hz. The spectrum adjustment values are product properties that result from the measured sound absorption curve of the glass products, taking into account the relevant noise sources.

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