Tonewheel Organ ignores scale and voice allocation settings
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Tonewheel Organ ignores scale and voice allocation settings
Tonewheel Organ ignores
scale and voice allocation settings
The tonewheel organ model is quite different from the other synths. It's a monolithic model of a Hammond tonewheel organ, including all 91 tonewheels. This means that there really aren't individual notes per se, and no internal distinction between overtones and fundamentals.
For instance, if you have the 16' and 8' drawbars pulled out, and then play C2, you are playing two sine waves: C2 and C3. If you play C3, you are also playing two sine waves, an octave higher than before: C3 and C4. If you then play both C2 and C3 together, you are now playing only three sine waves - not four - at C2, C3, and C4.
So, the C3 is shared between the two notes; it is not played twice.
Since this is the way that the original instrument worked, the model sounds very similar; most importantly, it ensures perfect phase coherency between voices. This does, however, mean that the algorithm works a little differently from other OASYS PCI synths. Specifically, the settings for Scale, Number of Voices, and Voice Allocation are ignored, as described below.
Scale setting is ignored
Since the tonewheels may be shared between several different notes, a normal microtonal scale does not make sense; you can't detune one note without affecting all of the others. Because of this, the Scale setting is ignored.
Number of voices and voice allocation are ignored
Calling up the Tonewheel Organ automatically allocates all 91 tonewheels, all of which can be played simultaneously. Since all 91 tonewheels are always being produced, voice allocation settings are ignored.
Copyright 1999-2002 Korg Inc. FAQ Version: 8/19/02