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Corner bass traps???
Old 9th February 2013
Gear interested

Thread Starter
Corner bass traps???

Hello I wanted to know if anyone has done a comparison on corner bass traps made with big triangles of oc703 built in to the wall against the same idea but instead of triangles a layer lets say 6 inches then an air gap.

I've seen them fairly large in big pro studios they must be a few feet thick at least at what frequency do these go down to,

Is there a frequency to thickness chart

Old 9th February 2013
Gear Guru
Glenn Kuras's Avatar
Are you just talking about a 6" panels straddling the corner? Sure many people of tested that. Filling the corner will just reach lower frequencies.
Old 9th February 2013
Gear interested

Thread Starter
No not a panel I mean built in to a stud wall trying to see if I can save money
Old 10th February 2013
Gear Guru
DanDan's Avatar
Frequency to Thickness

You can predict absorption. Note this calculator will do a single individual of incidence (try 45-50.....up to 85) and also a diffuse reverberant field.

Porous Absorber Calculator

Here's the Gas Flow Resistivity numbers you will need.

Many will disagree about the depth needed for 'useful' absorption. Most will agree that 1/4 wave does pretty much 100%
Studio designers often use a figure of 1/10 of wavelength to achieve 'significant' absorption. (about 85%)

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