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A room design spreadsheet by hawley & williams, detailing room dimensions, sound speed, sabins, reverb time, and cost calculations for various materials and their absorption coefficients. The spreadsheet includes data for different frequencies and room modes.
Typology: Lab Reports
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Room Size: Length (ft) Width (ft) Height (ft) Volume 60 50 30 90000 Sound Speed (ft/s): 1140 Sabins Part Type 125 Hz 500 Hz 1000 Hz 2000 Hz Seat+Person* 400.00 1200.00 1800.00 2000.00 2080. Floor Concrete 3,000.00 30.00 60.00 60.00 60. Ceiling Plywood 3,000.00 1350.00 390.00 330.00 300. Wall - Back Acoustical Bo 1,800.00 450.00 1440.00 1620.00 1620. Wall - Front Plywood 1,800.00 810.00 234.00 198.00 180. Wall - Left Plasterboard 1,500.00 300.00 150.00 120.00 60. Wall - Right Curtains 1,500.00 75.00 375.00 525.00 600. Total Sabins 4215.00 4449.00 4853.00 4900. Reverb Time (s 1.068 1.011 0.927 0. Cost Calculator Building $90,000.00 Volume Rate ($/ft^3): 1 Seats $20,000. Floor $1,500. Ceiling $1,050. Wall - Back $2,250. Wall - Front $630. Wall - Left $525. Wall - Right $1,200.00 **Income Profit/Loss
Materials Absorption Coefficients Cost** 125 Hz 500 Hz 1000 Hz 2000 Hz Concrete 0.01 0.02 0.02 0.02 $0. Glass 0.19 0.06 0.04 0.03 $10. Plasterboard 0.20 0.10 0.08 0.04 $0. Plywood 0.45 0.13 0.11 0.10 $0. Carpet 0.10 0.30 0.35 0.50 $0. Curtains 0.05 0.25 0.35 0.40 $0. Acoustical Board 0.25 0.80 0.90 0.90 $1.
Room Modes:
ft^3 Quantity (ft^2 )
1 1.2^ Room Mode Distribution Frequency (Hz) 1 See next page(s) for frequency values
0 (^200400600800100012001400160018002000)
Concrete Glass Plasterboard Plywood Carpet Curtains Acoustical Board Frequency (Hz) Absorption Coeff (Sab/ft^2)
Frequency (Hz) Reverb Time (s)