[QUOTE=bmckenney;4842084]Surface area: 3 windows are 3' wide by 5' high. Then there are three angled windows above each of the 3 rectangular.
Any ideas on how to measure resonating glass?/QUOTE]
I didn't know that they were that big,
Probably the easiest and most accurate way to measure the resonance of the glass is by "pinging" it and listening to the pitch of the "ringing". If you have a spectrum analyzer plug-in on your DAW, you can record the ringing and determine this resonant frequency quite accurately.
You can test the effect of the 'fix' by recording after you place some weatherstripping. This should get you moving in the right direction.

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John H. Brandt
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