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Old 1st July 2009   #20
DanDan
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Join Date: Aug 2003
Location: Cork Ireland
Posts: 5,990

Aaaaaah

My failing eyesight or other faculties have once again let me down....
I totally failed to notice that the RT graphs began at 100Hz, I just assumed full range.
That totally changes everything.
The Waterfalls show the usual horrible suck outs and booms.
Nothwithstanding that, the rest of the spectrum looks great and is a fine example of what can be done. Furthermore the Hearing is Believing bit is a great move. I believe many audio situations can be usefully shown by recording and playing back. e.g. Microphone, Preamp, Speaker, comparisons.
Unfortunately the region below 100Hz is the one I am most interested in.
It is of course the most difficult to control or even to measure. It is an octave and a half or so of full range music, i.e. most music. Some would point out that this area is by far the most important, containing vast amounts of energy, and in the case of Rock, most of the Bass and Kick Drum sound.
I am disappointed that REW only goes down to 80Hz, but perhaps that is a better call than the others have made. Similarly I welcome the 'confidence' indicators which REW, B and K and others provide. I am sure Chris of FM is watching this and will respond with such features.
If we did consider this room in terms of full range and third octave RT it would have a rising RT towards LF, generally welcome. However, and sadly, it would very much fail the earlier mentioned BBC test of third octave RTs being within 10%
But so would my Control Room which sounds wonderful and works really well.
Oh well.
DD
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