Larson Davis 831, User Manual

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A-28 1/1 and 1/3 Octave Filters Model 831 Manual
Gain = 20 dB, Filter Range = Normal
FIGURE A-10 Gain = 20 dB, Filter Range = Low
1/3 Octave Filter Sum m ation
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
6.31 15.25 36.87 89.13 215.4 520.8 1259 3043 7356 17783
Frequency
Erro
r (
d
B
)
1/3 Octave Filter Sum m ation
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
6.31 15.11 36.17 86.6 207.3 496.4 1189 2846 6813 16312
Frequency
E
rro
r (
d
B
)