Dynamic Filters - E-Mu XL-7 Command Station Owner's Manual

Dynamic
Filters
The block diagram of the XL-7's signal path is shown below.
Instrument
To understand how a filter works, we need to understand what makes up a
sound wave. A sine wave is the simplest form of sound wave. Any
waveform, except a sine wave, can be analyzed as a mix of sine waves at
specific frequencies and amplitudes.
Any waveform can be analyzed as a mixture of sine waves.
One way to represent complex waveforms is to use a chart with frequency
on one axis and amplitude on the other. Each vertical line of the chart
represents one sine wave at a specific amplitude and frequency.
100
80
60
40
20
Z-Plane
Filter
Freq. Q
40 80 160 360 720 1440 2880
Frequency
Programming Basics

Dynamic Filters

L
Amp
R
Vol Pan
...
XL-7 Owners Manual 189