E-Mu ProteusX Operation Manual page 154

9 - Synthesizer Basics
Dynamic Filters
100
80
Output of Filter
60
40
20
40 80
A filter that lets only the high frequencies pass is called a high-pass filter.
Initial Frequency
100
80
60
40
20
40 80 160 360 720 1440 2880
Frequency
A filter that only lets a certain band of frequencies pass is called a band-pass filter.
Center Frequency
100
80
60
40
20
40 80
154
Cutoff Frequency
160 360 720 1440 2880
Frequency
Filter Output
...
Filter
Output
Band Pass
Filter
160 360 720 1440 2880
Frequency
Low Pass
Filter
...
High Pass
Filter
...
Proteus X Operation Manual