Quote:
Originally Posted by Kamero6
Thanks for confirming. It would act as if thyou stick a weight in the cone of a speaker (roughly speaking). It would change the frequency and amplitude of the sound.
Isn't the dynomat effect also the weight that adds to the panel? the thicker and heavier the better?
I can imagine they might have equipment to measure a "sound heatmap" to be able to determine in which places apply the sealant.
|
Adding weight alone just changes the resonant frequency, but doesn't reduce the duration of the resonance. A constrained layer damping product works using two pieces - the elastomeric damping product (the soft, sticky stuff) is constrained from moving by the aluminum layer. The compliance of the damping product, when properly tuned with the constraining product, is what determines performance.
I have used acoustical cameras before, and am trying to build a 360 acoustical camera with low frequency resolution. I agree that they likely determined what and where, using as little product as possible.