User Guide

Chapter 22 EVB3 329
Drawbars
The principles of additive synthesis with sine drawbars is further explained in “Additive
Synthesis With Drawbars” on page 355. You can intuitively pick up the basic principles
by playing a little with the drawbars. The further down you drag the drawbars, the
louder the selected sine choir(s) will be—the drawbars behave like reversed mixer
faders. MIDI control of the drawbars is also reversed, when using a standard MIDI fader
box.
Drawbars of the Upper and Lower manual, plus Pedal drawbars.
Pedal Drawbars
The EVB3 features two drawbars for the bass Pedals. The waveform of the bass is not a
pure sine wave, but a mixed waveform, that realistically simulates the Hammond B3
bass. The two registers differ in pitch, and in the following ways:
 The Lower 16' register contains more octaves
 The 8' register has a more prominent fifth portion
Volume
The EVB3 offers several parameters that provide control over volume.
Relative Volumes—Upper/Lower/Pedal
In the parameters section, you can set the volume of the Lower manual, and the Pedal,
relative to the Upper manual. The parameters are called Lower Volume and Pedal
Volume.