Tuning of Estimated Sound Absorption Coefficient of Materials of Reverberation Room Method

Table 4

Variable weight adjustment.

Frequency	100	125	160	200	250	315	400	500	630
Weight	0.20	0.25	0.32	0.40	0.50	0.63	0.80	1.00	0.126
Frequency	800	1k	1.25k	1.6k	2k	2.5k	3.15k	4k	5k
Weight	0.160	0.200	0.250	0.320	0.400	0.500	0.630	0.800	1.000
Thickness	25	50
Weight	0.5	1.0
Density	32	48	73	96
Weight	0.33	0.50	0.76	1.00