HVM200 Reference Manual Frequency Weighting Tables A-20
Wm, Wc, and Wd Frequency Weightings
Freq
( Hz)
Wm Ideal
(dB)
WmTyp
(dB)
Wc Ideal
(dB)
Wc Typ
(dB)
Wd Ideal
(dB)
Wd Typ
(dB)
Tolerance
(dB)
0.100 -32.04 -36.81 -24.10 -25.20 -24.09 -25.23 +2 / -
0.1259 -28.20 -32.86 -20.12 -21.23 -20.12 -21.21 +2 / -
0.1585 -23.98 -28.53 -16.19 -16.93 -16.18 -16.96 +2 / -
0.1995 -20.23 -24.53 -12.34 -13.00 -12.32 -13.00 +2 / -
0.2512 -16.71 -20.60 -8.71 -9.30 -8.68 -9.28 +2 / -2
0.3162 -13.51 -16.58 -5.51 -5.88 -5.47 -5.78 +2 / -2
0.3981 -10.98 -12.67 -3.05 -3.17 -2.98 -3.10 +1 / -1
0.5012 -9.53 -9.04 -1.47 -1.50 -1.37 -1.40 +1 / -1
0.6310 -8.71 -5.76 -0.64 -0.60 -0.50 -0.45 +1 / -1
0.7943 -8.38 -3.18 -0.25 -0.23 -0.08 -0.06 +1 / -1
1.00 -8.29 -1.59 -0.08 -0.06 +0.10 0.12 +1 / -1
1.259 -8.27 -0.85 +0.00 -0.01 +0.06 0.06 +1 / -1
1.585 -8.07 -0.61 +0.06 0.02 -0.26 -0.28 +1 / -1
1.995 -7.60 -0.64 +0.10 0.05 -1.00 -1.06 +1 / -1
2.512 -6.13 -0.86 +0.15 0.09 -2.23 -2.30 +1 / -1
3.162 -3.58 -1.24 +0.19 0.12 -3.88 -3.93 +1 / -1
3.981 -1.02 -1.78 +0.21 0.14 -5.78 -5.84 +1 / -1
5.012 0.21 -2.55 +0.11 0.04 -7.78 -7.85 +1 / -1
6.310 0.46 -3.52 -0.23 -0.31 -9.83 -9.92 +1 / -1
7.943 0.21 -4.76 -0.97 -1.06 -11.87 -11.91 0
10.0 -0.23 -6.16 -2.20 -2.25 -13.91 -13.95 +1 / -1
12.59 -0.85 -7.75 -3.84 -3.88 -15.98 +1 / -1
15.85 -1.83 -9.44 -5.74 -5.74 -17.95 +1 / -1
19.95 -3.00 -11.30 -7.75 -7.81 -20.02 +1 / -1
25.12 -4.44 -13.19 -9.80 -9.85 -15.93 -22.04 +1 / -1
31.62 -6.16 -15.12 -11.87 -11.91 -17.95 -24.05 +1 / -1
39.81 -8.11 -17.14 -13.97 -14.00 -19.97 -26.12 +1 / -1
50.12 -10.09 -19.26 -16.15 -16.20 -21.98 -28.28 +1 / -1
63.10 -12.43 -21.62 -18.55 -18.59 -24.01 -30.67 +1 / -1
79.43 -15.34 -24.40 -21.37 -21.39 -26.08 -33.45 +1 / -1
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