dB magnitude of Complex logarithmic Spectrum
1 unit <==>   0.0 dB
step=  1.000terc
 15.85 	-85.51
 19.95 	-77.04
 25.12 	-64.03
 31.6 	-47.59
 39.8 	-44.42
 50.1 	-41.59
 63.1 	-44.43
 79.4 	-39.06
 100.0 	-33.96
 125.9 	-31.24
 158.5 	-23.14
 199.5 	-22.98
 251.2 	-24.97
 316 	-23.93
 398 	-22.26
 501 	-21.77
 631 	-19.75
 794 	-19.79
 1000 	-18.89
 1259 	-18.94
 1585 	-21.45
 1995 	-22.40
 2512 	-25.33
 3160 	-27.81
 3980 	-27.46
 5010 	-26.93
 6310 	-33.08
 7940 	-36.48
 10000 	-36.85
 12590 	-38.57
 15850 	-45.45
 19950 	-57.09
 25120 	-67.18