![[Hole in wall]](/anvc/images/reverb2.gif)
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Reverberation Rooms
The School has two reverberation chambers for use in sound
transmission loss testing and sound aborption testing.
For sound transmission loss testing, the sample is installed
in a hole in the wall between the two rooms.
Sound in the source room will then pass through the test sample into
the receiver room,
where a traversing microphone or fixed microphones measure the sound
pressure level in the room.
Source Room
| Dimensions |
6.085 x 5.175 x 3.355 m |
| Volume |
105.6 m^3 |
| Surface Area |
138.5 m^2 |
| Opening Area |
9.71 m^2 |
| Small Test Panel Opening |
1100 wide x 1605 tall mm |
| Small Test Panel Size |
1000 wide x 1505 tall mm (inside clamping frame) |
| Volume between chambers |
9.42 m^3 |
| Rotating Diffuser |
Hemi-conical shape
2.5m height
1.5m diam top
3.0m diam bottom
Swept Volume 10.31m^3 |
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![[Source Room]](/anvc/images/reverb1.gif)
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Receiver Room
| Dimensions |
6.840 x 5.565 x 4.720 m |
| Volume |
179.7 m^3 |
| Surface Area |
193.2 m^2 Including opening area |
| Opening Area |
9.71 m^2 |
| Small Test Panel Opening |
1100 wide x 1605 tall mm |
| Small Test Panel Size |
1000 wide x 1505 tall mm (inside clamping frame) |
| Volume between chambers |
9.42 m^3 |
| Rotating Diffuser |
Hemi-cylindrical shape
2.4m height
3.5m diam
Swept Volume 23.09 m^3 |
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![[Anechoic Room]](/anvc/images/anecho1.gif)
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Anechoic Room
The anechoic room is used to measure acoustic radiation patterns
from objects and when a quiet measurement environment is required.
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