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Old 18th September 2020 | Show parent
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Originally Posted by Kyle P. Gushue View Post
Thanks again for yet another amazing resource!

How would one determine if the leafs are close enough together they act almost like a single mass, or far enough apart that the resonance is low enough that the 3 leaf situation isn't an issue?

In these cases, would you use the calcs for MAM or still use 3 leaf math, when adding the additional leaf?

Sorry if im muddying the thread.
About an inch. See LONG Architectural Acoustics chapter 9 or more information.

There is no generalization for not using the proper equations when I am working for a client. For related information read Canadian Builders Digest CBD-240 and note figures 3 and 9.
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