E-Mu orbit v2 사용자 설명서

Chapter 4: Programming Basics

Orbit contains a Z-plane filter for each of its 32 channels. The block
diagram of a single channel is shown below.

The Tone filter is a simple tone control and can be used to brighten
or darken the tone of an instrument. Each of the 17 Z-plane filters is a
powerful synthesizer filter which can dramatically alter the sound of
an 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.

One way to represent complex waveforms is to use a chart with fre-
quency on one axis and amplitude on the other. Each vertical line of
the chart represents one sine wave at a specific amplitude.

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