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Thanks Waldemar. The diffuse / angle of incidence option expains the different outcomes.
I am a bit surprised by the results between 4mm Glass 68 - Rw30 and the 4mm Glass 68 + 100mm air + 6mm Glas ... |
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Im may have not explained myself well. The graph and table values are in agreement for the 4mm glass + 100mm air + 6mm glass but the calculated broadband value of Rw 29 is not in agreement with the ta ... |
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I have labarotory data from a glass manufacturer. As an example 4mm float glass - Rw 31, 6mm Rw 32, 4mm +100mm air + 6mm Rw 46.
I personally think the values are slightly high for field assessment ... |
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I am currently evaluating the 30 day trial version. SoundFlow gives values for a 6mm glass + 100mm air + 8mm glass combination as Rw 33. This seems a bit low. I was expecting Rw 40 - 45.
Any sugges ... |
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