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An
Introductory Guide to Subwoofers
Room Mode and RT60
Modeling Software
This page is under
construction
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In the EQ and bass trap pages, we talked about using both those tools together to obtain the best in-room response. But before building a bunch of traps, it's a good idea to simulate the in-room subwoofer performance.
The two most famous retail programs for this type of testing
are..........
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CARA (Computer Aided Room Acoustics) with it's VERY processor intensive 3D SPL plotting.
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RPG Acoustics Room Optimizer
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Also there are numerous freeware Excel spreadsheets that perform
this function. Most are limited in the information they provide. And all but one
(see below) fail to have any form of graphical display of the room interaction.
A Google search for "Room Mode Calculators" will return many hits for
these more simplistic calculators. _____________________________________________________________________________________________
Although it's wood grain wallpaper is a little garish, Eric Desart's Room
Modes and Reverberation Time Calculator is much easier for the
inexperienced Excel user, since it contains pop-up dialog boxes for entering
your data. For example ......
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When modeling in-room performance, it's handy to have access to the absorption
coefficients of various building material.
http://www.saecollege.de/reference_material/pages/Coefficient%20Chart.htm
http://www.wsdg.com/downloads/abscoeff.xls
http://forum.studiotips.com/download.php?id=836
http://forum.studiotips.com/download.php?id=837
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This is a list of links to large acoustics related websites
Note if any of the links are broken, post the old URL into the Wayback
Machine
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http://www.aes.org/technical/documents/AESTD1001.pdf
http://literature.usg.com/pdf/SA924.pdf
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