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Originally Posted by DanDan  So, completely ignoring that, I would be happy to join a discussion on how various materials 'sound'. |
Great, back on track again.
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I do however think it best to start a new thread with an appropriate title, and I still think this one should be culled.
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As far as I'm concerned this thread could be snipped right after my Post #5 where I said, "There's no difference in sound between concrete and wood, or at least not enough to worry about. Both reflect sound."
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Omitting below the 125Hz and above the 4kHz Octaves is ignoring three musically vital octaves.
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Agreed completely. I'm not so concerned about below 125 Hz in this case because we're talking about solid slabs. But I do wish the data included 8 KHz because if there's a meaningful difference between drywall and glass, it will be up there. I'm still hoping Max will come back with the data from Table 10 in Beranek's book he mentioned. Maybe that includes the 8 KHz band?
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those Coefficients apply to a diffuse sound field, which doesn't exist in our listening rooms.
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Yes, but that doesn't mean they're not useful. Absorption coefficients apply nicely to bass traps and RFZ panels in a bedroom size studio.
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Alton Everest ... said 'to measure is to know'
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Hey, that's been
my point all along!
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hearing is subjective and the trained ear might very well detect flaws in a studio, elegant graphs and measurements to the contrary.
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This is where we part views because I firmly believe that measuring trumps hearing every time. Assuming you know what and how to measure of course! Hearing is very fragile, and a mix that sounds great one day can sound terrible the next even when nothing has changed. If you've ever tweaked the EQ on a snare track to perfection only to discover later you were adjusting the vocal, you know what I mean. That, and all the people who believe they hear the sound change when they replace a power cord. Measuring is the only way to separate fact from belief.
--Ethan