Quote:
Originally Posted by Finnish
Hi RJHOllins,
Thanks for your input!
Well, here's something that needs a rerun, I was using 75db or below SPL levels. Gonna do it again today, with 85db levels.
Here's what I found out about room modes, my room dimensions are in that calculator (calculator here http://www.marktaw.com/recording/Aco...WaveCalcu.html:
So, I'd say room modes has a big influence here! But how to manage it or deal with it?
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There is something very wrong with those frequencies Finnish, I havent worked out what you've done yet, but these are the actual figures for axial modes for that room...
Code:
x y z freq(Hz)
1 39.88372093
1 45.73333333
1 68.05555556
2 79.76744186
2 91.46666667
3 119.6511628
2 136.1111111
3 137.2
4 159.5348837
4 182.9333333
5 199.4186047
3 204.1666667
5 228.6666667
6 239.3023256
4 272.2222222
6 274.4
7 279.1860465
8 319.0697674
7 320.1333333
5 340.2777778
9 358.9534884
8 365.8666667
10 398.8372093
I've sorted them into frequency order for you -watch out for that 136, 137Hz conjunction!!
(and 275Hz!)
Edit: I used c=343m/s rather than your 344, but very small difference. c(sound) is 343m/s at 20 degC.
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