 Posted: Mon Nov 06, 2006 5:57 pm |
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| datrobban |
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| Joined: 29 Apr 2005 |
| Posts: 17 |
| Location: Sweden |
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| I have recived Lambert diffusion in % in octaveband between 125-4000 Hz.
Does anyone know if those values are directly transferable into EASE 4.1 Wall material database or do i have to handle it in any different way?
Will EASE calculate diffusion in the same way as CATT does?
Best regards
Robert Nilsson |
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| Posted: Tue Nov 07, 2006 5:28 am |
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| Bruce |
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| Joined: 19 Apr 2005 |
| Posts: 460 |
| Location: Minneapolis, MN, USA |
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| The EASE MaterialBase accepts scattering coefficients according to ISO standard 17497. The EASE AURA (Analysis Utility for Room Acoustics) module then uses Lambert's Law to calculate the scattered reflections. The MaterialBase allows entering these coefficients as octave values and can then interpolate the values to the one-third octave resolution used by EASE. |
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_________________
Best Regards,
Bruce C. Olson |
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| Posted: Wed Nov 15, 2006 8:35 pm |
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| datrobban |
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| Joined: 29 Apr 2005 |
| Posts: 17 |
| Location: Sweden |
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| I have an acoustical consultant who demands to have it confirmed in a report, what are the official signal Source used in SPL calculations and in the AURA module?
Does it follow any standard and does the signal source have any crest factor?
Best regards
Robert Nilsson |
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