Search found 19 matches

by bert stoltenborg
Fri, 2020-Feb-14, 07:35
Forum: The Green Room
Topic: MSM
Replies: 6
Views: 2807
Netherlands

MSM

969 That's a great explanation, thanks Stuart. Something else I've pondered about Green Glue is: does the use of screws through all layers reduce the amount of relative sliding possible, and therefore reduce the viscolelastic effect? Of course the screws are necessary as Green Glue isn't actually g...
by bert stoltenborg
Wed, 2020-Jan-15, 14:26
Forum: Fake Acoustics!
Topic: Some common acoustic myths.
Replies: 6
Views: 3087
Netherlands

Re: Some common acoustic myths and legends....

1992! I was just born then! Well.....
And still we have to debunk these topics day in day out.
by bert stoltenborg
Mon, 2019-Dec-30, 08:46
Forum: RECORDING STUDIO CONSTRUCTION
Topic: Private studio in Slovakia
Replies: 101
Views: 23626
Netherlands

Re: Private studio in Slovakia

Thanks.

I guess you don't need permits etc.
Over here it wouldn't be so easy to get such a project on the rails :) .
by bert stoltenborg
Sun, 2019-Dec-29, 15:17
Forum: RECORDING STUDIO CONSTRUCTION
Topic: Private studio in Slovakia
Replies: 101
Views: 23626
Netherlands

Re: Private studio in Slovakia

Could you elaborate on why you choose for this construction?
So how did you determine the isolation needs, and how did you calculate all this?
I suppose it's all substantiated with gory math and stuff? :D
by bert stoltenborg
Tue, 2019-Dec-24, 15:34
Forum: The Green Room
Topic: SHORT Book List
Replies: 45
Views: 18188
Netherlands

Re: SHORT Book List

Hmmm, I got this book via academia.edu. I thought they send only papers that are for free publication. Now they send me the Master Handbook, so I googled the book I posted here and it seems to be a work that is sold by Amazon, so probably this is an copyright infringement? Then I'll delete it of, of...
by bert stoltenborg
Sat, 2019-Dec-21, 13:06
Forum: The Green Room
Topic: SHORT Book List
Replies: 45
Views: 18188
Netherlands

Re: SHORT Book List

I found this. Seems a nice ducument.
by bert stoltenborg
Fri, 2019-Oct-25, 06:49
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Predictive Acoustics: Applying the Science
Replies: 8
Views: 4334
Netherlands

Re: Predictive Acoustics: Applying the Science

https://www.marshallday.com/innovation/the-listening-room/ http://www.rpgeurope.com/products/product/tools.html http://www.rhintek.com/cara/cara21desc.php https://www.roomeqwizard.com/help/help_en-GB/html/modalsim.html DD I would take CARA with a grain of salt. It calculates situations in a peculia...
by bert stoltenborg
Wed, 2019-Oct-23, 07:17
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Air Gap Discussion
Replies: 22
Views: 9573
Netherlands

Re: Air Gap Discussion

You can use it this way: If you have a source powerlevel of, say, 100 dB(A) you can correct for a specific spectrum by subtracting that spectrum. So for a popspectrum: 63 Hz - 100 dB(A) minus 27 dB = 73 dB 125 Hz - 100 dB(A) minus 14 dB = 86 dB, etc When you energetically sum these data you'll get t...
by bert stoltenborg
Wed, 2019-Oct-23, 07:11
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Air Gap Discussion
Replies: 22
Views: 9573
Netherlands

Re: Air Gap Discussion

Interesting random pic bert! On another forum deedeeyah posted spectra of presumably large gigs. Pronounced HF roll off. I have looked at Erics Baffles and Ethans fibre tests. The reason I started this ball rolling here is that I am not at all convinced that isolated panels do benefit from airgaps....
by bert stoltenborg
Sun, 2019-Oct-20, 13:25
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Air Gap Discussion
Replies: 22
Views: 9573
Netherlands

Re: Air Gap Discussion

On the laptop it works.
by bert stoltenborg
Sun, 2019-Oct-20, 10:24
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Air Gap Discussion
Replies: 22
Views: 9573
Netherlands

Re: Air Gap Discussion

A random pic works, but the pdf (500k) doesn't.
by bert stoltenborg
Sun, 2019-Oct-20, 10:18
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Air Gap Discussion
Replies: 22
Views: 9573
Netherlands

Re: Air Gap Discussion

I think Stuart explains it good. I add a document Eric Desart made that might give more feeling about this stuff. Edit: Ok, that doesn't work. Why can't I post an PDF attachment? Not sure, Bert! You SHOULD be able to post PDF! I have PDF posting enabled for all users... In fact, the forum allows pr...
by bert stoltenborg
Sat, 2019-Oct-19, 13:52
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Air Gap Discussion
Replies: 22
Views: 9573
Netherlands

Re: Air Gap Discussion

I would like to start a little discussion of the Air Gap. A suspended ceiling with say 1" Fibre tiles and a 16" Air Gap performs remarkably well, very high absorption down as far as 50Hz. Note the whole boundary is treated. But consider a typical Cloud, say four 4"x4'x2'. In this cas...
by bert stoltenborg
Sat, 2019-Oct-19, 11:34
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Air Gap Discussion
Replies: 22
Views: 9573
Netherlands

Re: Air Gap Discussion

I think Stuart explains it good.

I add a document Eric Desart made that might give more feeling about this stuff.

Edit: Ok, that doesn't work.
Why can't I post an PDF attachment?
by bert stoltenborg
Sat, 2019-Oct-19, 11:11
Forum: RECORDING STUDIO ACOUSTICS AND TREATMENT
Topic: Diffusion To Help Control Modal Problems?
Replies: 4
Views: 2797
Netherlands

Re: Diffusion To Help Control Modal Problems?

C QRD-Diffusion-lobing--pattern-graph-SML-ENH-2.PNGThe diffuser is down the bottom of the photo, and the drunk mangled rainbow pattern represents the results of the diffusion, in terms of the phase (the same happens in frequency, time, and intensity, all overlaid in the same space). - Stuart - Can ...