Assignment 6: Calculations Do the following on paper, scan or photograph your work, and submit it. You have a room that is 4 m long, 7 m wide, and has a ceiling height of 3 m. The floor is hardwood

Panel Absorbers

Panel absorbers—also known as flexural or diaphragmatic absorbers—consist of non-porous panels, generally separated from a rigid surface beyond it by an air cavity. These panels flex at their resonant frequencies, converting the sound energy to heat.

These absorbers are very effective for a bandwidth of about one octave, and can be designed for various frequencies of resonance and peak absorption. This theoretical frequency is determined by the following equation:

Assignment 6: Calculations Do the following on paper, scan or photograph your work, and submit it. You have a room that is 4 m long, 7 m wide, and has a ceiling height of 3 m. The floor is hardwood 1

In the equation, M is the mass of the panel in kg/m2, and D is the depth of the airspace behind it in meters.

For example, a 3-mm thick Masonite panel has a mass of 2.9 kg/m2. If this were spaced 4 cm from a wall, the resonant frequency would be calculated like this:

Assignment 6: Calculations Do the following on paper, scan or photograph your work, and submit it. You have a room that is 4 m long, 7 m wide, and has a ceiling height of 3 m. The floor is hardwood 2

Assignment 6: Calculations Do the following on paper, scan or photograph your work, and submit it. You have a room that is 4 m long, 7 m wide, and has a ceiling height of 3 m. The floor is hardwood 3

Assignment 6: Calculations Do the following on paper, scan or photograph your work, and submit it. You have a room that is 4 m long, 7 m wide, and has a ceiling height of 3 m. The floor is hardwood 4