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Emulator Composite.book - Creative

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Dynamic Filters<br />

Following is a block diagram of the signal path.<br />

<strong>Emulator</strong> X utilizes advanced Z-plane filters which can dramatically alter the sound of a<br />

sample.<br />

To understand how a filter works, we need to understand what makes a sound wave. A<br />

sine wave is the simplest form of sound wave. Any waveform except a sine wave can be<br />

analyzed as a mixture of sine waves.<br />

One way to represent complex waveforms is to use a chart with frequency on one axis<br />

and amplitude on the other. Each vertical line of the chart represents one sine wave at a<br />

specific amplitude and frequency.<br />

Amplitude<br />

Pitch<br />

Samples<br />

100<br />

80<br />

60<br />

Glide<br />

40<br />

20<br />

Retrigger<br />

Glide<br />

Start Offset<br />

Z-Plane<br />

Filter<br />

Freq. Q<br />

Vol<br />

Frequency vs Amplitude<br />

40 80 160 360 720 1440 2880 ...<br />

Frequency<br />

Amp<br />

12 - Synthesizer Basics<br />

Dynamic Filters<br />

E-MU Systems 287<br />

Pan<br />

L<br />

R

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