#1
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Some Rockwool absorption coefficients
For anyone interested:
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Derek Coombs Youtube -> Website -> Music -> Tabs Guitars by Mark Blanchard, Albert&Mueller, Paul Woolson, Collings, Composite Acoustics, and Derek Coombs "Reality is that which when you stop believing in it, doesn't go away." Woods hands pick by eye and ear
Made to one with pride and love To be that we hold so dear A voice from heavens above |
#2
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Rick do you know if those are the ASTM C423 ratings ? it does not say
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Enjoy the Journey.... Kev... KevWind at Soundcloud KevWind at YouYube https://www.youtube.com/playlist?lis...EZxkPKyieOTgRD System : Studio system Avid Carbon interface , PT Ultimate 2023.12 -Mid 2020 iMac 27" 3.8GHz 8-core i7 10th Gen ,, Ventura 13.2.1 Mobile MBP M1 Pro , PT Ultimate 2023.12 Ventura 12.2.1 Last edited by KevWind; 10-26-2016 at 10:29 AM. |
#3
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Quote:
http://www.atsacoustics.com/media/im...ifications.pdf
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Derek Coombs Youtube -> Website -> Music -> Tabs Guitars by Mark Blanchard, Albert&Mueller, Paul Woolson, Collings, Composite Acoustics, and Derek Coombs "Reality is that which when you stop believing in it, doesn't go away." Woods hands pick by eye and ear
Made to one with pride and love To be that we hold so dear A voice from heavens above |
#4
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Quote:
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Enjoy the Journey.... Kev... KevWind at Soundcloud KevWind at YouYube https://www.youtube.com/playlist?lis...EZxkPKyieOTgRD System : Studio system Avid Carbon interface , PT Ultimate 2023.12 -Mid 2020 iMac 27" 3.8GHz 8-core i7 10th Gen ,, Ventura 13.2.1 Mobile MBP M1 Pro , PT Ultimate 2023.12 Ventura 12.2.1 Last edited by KevWind; 10-26-2016 at 11:12 AM. |
#5
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Yes. Less nasty stuff to work with though, especially for do it yourselfers.
Even with the rockwool, when I first put up the panels I felt it was a good idea to run a room air purifier 24 hours a day for a week.
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Derek Coombs Youtube -> Website -> Music -> Tabs Guitars by Mark Blanchard, Albert&Mueller, Paul Woolson, Collings, Composite Acoustics, and Derek Coombs "Reality is that which when you stop believing in it, doesn't go away." Woods hands pick by eye and ear
Made to one with pride and love To be that we hold so dear A voice from heavens above |
#6
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I would imagine particularly if you are cutting any of it.
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Enjoy the Journey.... Kev... KevWind at Soundcloud KevWind at YouYube https://www.youtube.com/playlist?lis...EZxkPKyieOTgRD System : Studio system Avid Carbon interface , PT Ultimate 2023.12 -Mid 2020 iMac 27" 3.8GHz 8-core i7 10th Gen ,, Ventura 13.2.1 Mobile MBP M1 Pro , PT Ultimate 2023.12 Ventura 12.2.1 |
#7
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ATS Acoustics has a nice comparison of the absorption characteristics for a number of materials:
http://www.atsacoustics.com/page--Se...erial--ac.html I ended up using the Roxul Rockboard 80, 4" thickness. It's apparently better at the low end than some other materials: Acoustical performance sound absorption co-efficients to ASTM C423. Sound Absorption Co-efficiences at Frequencies Thickness (inches) 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC 1_______________0.11__0.31___0.82___1.01___1.02___ _1.01____0.80 1.5_____________0.21__0.64___0.92___1.00___0.95___ _1.01____0.90 2_______________0.43__0.78___0.90___0.97___0.97___ _1.00____0.90 3_______________0.75__0.82___0.89___0.94___1.00___ _1.00____0.90 (sorry, I didn't know how to insert the table and keep the formatting)
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Chuck 2012 Carruth 12-fret 000 in Pernambuco and Adi 2010 Poling Sierra in Cuban Mahogany and Lutz 2015 Posch 13-fret 00 in Indian Rosewood and Adi Last edited by ChuckS; 10-26-2016 at 12:07 PM. |
#8
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Quote:
But yes the more inches the more t lower freq's are absorbed. Which is also why some bass traps are designed to fit a 45 degree angle to fit into corners and at floor and ceiling seams and be thicker right at the seam
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Enjoy the Journey.... Kev... KevWind at Soundcloud KevWind at YouYube https://www.youtube.com/playlist?lis...EZxkPKyieOTgRD System : Studio system Avid Carbon interface , PT Ultimate 2023.12 -Mid 2020 iMac 27" 3.8GHz 8-core i7 10th Gen ,, Ventura 13.2.1 Mobile MBP M1 Pro , PT Ultimate 2023.12 Ventura 12.2.1 |