Sin x/x wrote on Tue, 10 October 2006 13:17 |
How is it possible that acoustic foam can absorb low frequency's when placed in a corner? Of cause the thickness of the foam determines the lowest frequency, but when placed in a corner it seems to absorb much more lower frequency's. How is that possible? (please ignore if double posted) |
Sin x/x wrote on Wed, 11 October 2006 07:14 |
Foam absorbs sound by reducing the velocity of the air molecules. But in a corner the air molecules have hardly any velocity, so how the **** can it absorb sound/low frequency's? Anyone? |
franman wrote on Thu, 12 October 2006 21:28 |
Low (or zero) velocity right at the corner but plenty of motion just off the corner. Corners are great bass trap locations because: a) LF energy is always high at boundaries(Max PRESSURE!!) b) corners are connection of multiple boundaries c) always lotsa modal action at (or right near) the corners |
Sin x/x wrote on Fri, 13 October 2006 01:35 |
Foam is a not such a smart way to eliminate acoustic problems. |