RUMBLE AND HIGH FREQUENCY FILTERS
RESPONSE IN DB
20
100
FREQUENCY
10 KC
20 KC
Figure 12. Rumble filter and high frequency filter.
LOUDNESS CONTROL
20
15
10
0
RESPONSE IN DB
-15
-20
20 100 1KC 10KC
Figure 13. Loudness control.
15
20 KC
FREQUENCY
-10
-5
5
1
KC
-30
-25
-20
-15
-10
-5
0
