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Subject Sabine- and statistical absorption coefs
Date
Mon Jan 19 2004 12:58
Author Anders Buen
(anb@bs-akustikk.no)
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The program has the option to calculate the absorption coeffisient both at a given incidence angle, integrated over all incidense angles (a diffuse field) and a value from a reverberation room test, a generally higher value.
1. Now, is the absorption factor we get from the diffuse calculation the same as the statistical absorption factor?
I guess the reverberation room absorption coefissient we get from the reverberation room method in the program is the Sabine abs coeff.
2. Is there a simple way to calculate the statistical abs factor from the Sabine data? Is eg. the Eyring abs factor a good guess?
I guess that by measuring the flow resistivity of the porous material thus having good input data to e.g. the Mechel porous model, a relation could be found by comparing the two results from diffuse field and reverberation field calculation method.
Thank you in advance!
Regards Anders Buen
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