[dlzc]

Dear dude-guy:

On Sep 29, 6:24*am, dude-guy wrote:
On 26 Sep., 15:09, "N:dlzcD:aol T:com \(dlzc\)"
wrote:

Dear dude-guy:
Are you completely sure mass is the only thing
to consider?

Only thing, no. *The material's ability to dampen
vibration (good for polymer, poor for glass), and
mechanical isolation. *Triple

Yes, this is also what I thought...

Polymer = good at damping vibrations...
Glass = has higher density...

What should I choose?

Both, if sandwiched.

What is the optimal / the best, when there's
already 1 layer of glass (actually 2 thin
layers, it's a thermo-isolating window for cold
winters)...

paned glass is like a wall, for both sound
and heat transfer
(well...)

Does it matter whether it's high or low frequent
noise?

The spacing between panes will decide whether
it dampens / isolates or resonates / amplifies
the noise.

How to find the best spacing for absorbing noise
from church bells?

What would you recommend?

The mathematics on spacing will be similar to the length of an organ
pipe, only closed at both ends. 1 to 2 inches in length (separation)
will not respond well to the first few harmonics of the bell's tone.

Almost anything will be better than nothing.

David A. Smith