报告厅混响时间计算表格

a S*a a S*a a 1吊顶271.600.0410.860.0821.730.122穿孔吸音板54.040.3317.830.7540.530.923条纹吸音木板

98.300.3332.440.7573.730.924木饰面22.000.040.880.040.880.035木门15.120.16 2.420.15 2.270.106灯光口24.520.25 6.130.409.810.507地胶垫27.300.010.270.010.270.028大理石50.400.010.500.010.500.029座位满(人数)

170.000.2745.900.4373.100.4910地毯26.300.10 2.630.10 2.630.2011

窗8.28

0.35

2.90

0.25

2.07

0.18

4mV S*a总和S总和767.86

a平均-ln(1-a)T60/s

250Hz

500Hz

0.36122.77

227.52278.780.51

0.170.350.45序号项目材料面积S 1.31

0.65

0.160.30吸125Hz

吸声系数和吸声单位

500Hz1kHz2kHz4kHz S*a a S*a a S*a a S*a

32.590.3697.780.72195.55 1.00271.60

49.720.7238.910.6937.290.7439.99

90.440.7270.780.6967.830.7472.74

0.660.030.660.030.660.020.44

1.510.10 1.510.10 1.510.10 1.51

12.260.5513.490.6014.710.6014.71

0.550.020.550.030.820.030.82

1.010.02 1.010.02 1.010.03 1.51

83.300.4881.600.5186.700.5491.80

5.260.25

6.580.30

7.890.359.21

1.490.120.990.070.580.040.33

9.8123.97 78.78313.84424.35528.63

0.360.410.550.69

0.450.530.80 1.17

0.510.430.280.19

容积1089.60