Size: |
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21.5 x 14.8 x
9.2 |
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Floor |
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Carpet with mat over suspended
wood, vinyl sheeting between pad and carpet |
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Walls |
Left |
5/8" drywall over frame
construction with fiberglass |
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Right |
5/8" drywall on hat channel
with RSICs at 16" and 32" centers, with fiberglass insulation |
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Front |
Guilford FR701 fabric, open to
projector room, projection screen, 5/8" drywall above screen |
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Rear |
5/8" drywall over frame
construction with fiberglass, topped with 1/2" plywood |
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Ceiling |
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5/8" drywall on hat channel
with RSICs over frame construction with fiberglass |
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Volume: |
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2897 |
cu ft. |
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Material |
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S |
125 Hz |
250 Hz |
500 Hz |
1 Khz |
2 Khz |
4 Khz |
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sq ft. |
a |
Sa |
a |
Sa |
a |
Sa |
a |
Sa |
a |
Sa |
a |
Sa |
Carpet
with pad over wood floor |
196 |
0.10 |
19.6 |
0.27 |
52.8 |
0.39 |
76.2 |
0.34 |
66.5 |
0.48 |
93.8 |
0.63 |
123.2 |
Carpet
with pad over wood riser |
123 |
0.40 |
49.3 |
0.35 |
43.2 |
0.39 |
48.1 |
0.34 |
41.9 |
0.48 |
59.2 |
0.63 |
77.7 |
Left
wall (- acoustic treatment) |
171 |
0.29 |
49.5 |
0.10 |
17.1 |
0.05 |
8.5 |
0.04 |
6.8 |
0.07 |
12.0 |
0.10 |
17.1 |
Right
wall (- acoustic treatment, door) |
165 |
0.34 |
56.0 |
0.20 |
33.0 |
0.06 |
9.9 |
0.04 |
6.6 |
0.07 |
11.5 |
0.10 |
16.5 |
Uncovered
door |
6 |
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Back
wall (- acoustic treatment) |
78 |
0.29 |
22.6 |
0.10 |
7.8 |
0.05 |
3.9 |
0.04 |
3.1 |
0.07 |
5.4 |
0.10 |
7.8 |
Front
wall (- screen & above) |
90 |
0.85 |
76.2 |
0.85 |
76.2 |
0.85 |
76.2 |
0.85 |
76.2 |
0.90 |
80.7 |
1.00 |
89.6 |
Front
wall above screen |
17 |
0.29 |
4.9 |
0.10 |
1.7 |
0.05 |
0.8 |
0.04 |
0.7 |
0.07 |
1.2 |
0.10 |
1.7 |
Rear
projection screen |
30 |
0.35 |
10.4 |
0.25 |
7.4 |
0.18 |
5.3 |
0.12 |
3.6 |
0.07 |
2.1 |
0.04 |
1.2 |
Ceiling
(-acoustic treatment) |
294 |
0.34 |
100.0 |
0.20 |
58.8 |
0.06 |
17.7 |
0.04 |
11.8 |
0.07 |
20.6 |
0.04 |
11.8 |
Air
(per 1000 cu ft) |
2.9 |
0.00 |
0.0 |
0.00 |
0.0 |
0.00 |
0.0 |
0.90 |
2.6 |
2.30 |
6.7 |
7.20 |
20.9 |
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Acoustic
Treatments |
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Left
wall fiberglass absorption |
15 |
0.90 |
13.5 |
0.92 |
13.8 |
1.00 |
15.0 |
1.00 |
15.0 |
1.00 |
15.0 |
1.00 |
15.0 |
Left
wall angled reflectors |
12 |
0.34 |
4.1 |
0.69 |
8.3 |
0.26 |
3.1 |
0.14 |
1.7 |
0.17 |
2.0 |
0.20 |
2.4 |
Right
wall fiberglass absorption |
15 |
0.90 |
13.5 |
0.92 |
13.8 |
1.00 |
15.0 |
1.00 |
15.0 |
1.00 |
15.0 |
1.00 |
15.0 |
Right
wall angled reflectors |
12 |
0.34 |
4.1 |
0.69 |
8.3 |
0.26 |
3.1 |
0.14 |
1.7 |
0.17 |
2.0 |
0.20 |
2.4 |
Rear
wall bass trap diffusors |
58 |
1.40 |
81.7 |
1.80 |
105.0 |
1.50 |
87.5 |
0.90 |
52.5 |
0.50 |
29.2 |
0.30 |
17.5 |
Ceiling
Skyline diffusors |
24 |
0.00 |
0.0 |
0.34 |
8.2 |
0.28 |
6.7 |
0.29 |
7.0 |
0.19 |
4.6 |
0.16 |
3.8 |
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Audience
(on leather sofas) |
7 |
4.00 |
28.0 |
5.00 |
35.0 |
5.50 |
38.5 |
6.50 |
45.5 |
5.20 |
36.4 |
4.00 |
28.0 |
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Total
Sabins |
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533.3 |
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490.2 |
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415.6 |
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358.1 |
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397.4 |
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451.5 |
Reverberation
Time |
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0.27 |
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0.29 |
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0.34 |
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0.40 |
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0.36 |
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0.31 |
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