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DanDan · 4th February 2009

I believe there is some issue around Scalability which we are missing. This reflects my earlier comments about our Scientific inadequacies, Faux Science etc.
Frank, Glenn, I took a look, Brian's 3dB seems to be a full room, which is stretching a point, adjusting goalposts etc. Ethan's calculations look fine to me. I believe he is correct within the unworldly parameters he has latterly applied. It is those parameters I have an issue with.
A point to ponder perhaps- If Ethan were to test a patch of material, say 4 x 4 anechoically, I suspect it would have very little reflectivity below say 250 Hz? I presume that is why ISO use 10 sq metres in rev rooms big enough to be diffuse down to 125Hz.

DD

4th February 2009	#149
DanDan Lives for gear Joined: Aug 2003 Location: Cork Ireland Posts: 6,783 1 Review written	Scalability I believe there is some issue around Scalability which we are missing. This reflects my earlier comments about our Scientific inadequacies, Faux Science etc. Frank, Glenn, I took a look, Brian's 3dB seems to be a full room, which is stretching a point, adjusting goalposts etc. Ethan's calculations look fine to me. I believe he is correct within the unworldly parameters he has latterly applied. It is those parameters I have an issue with. A point to ponder perhaps- If Ethan were to test a patch of material, say 4 x 4 anechoically, I suspect it would have very little reflectivity below say 250 Hz? I presume that is why ISO use 10 sq metres in rev rooms big enough to be diffuse down to 125Hz. DD