Vast Synthesis; Kb3 Tone Wheel Emulation; How The K2661 Works - Kurzweil K2661 Musician's Manual

VAST Synthesis

Variable Architecture Synthesis Technology gives the K2661 its unprecedented flexibility. While
many other synthesizers offer a fixed set of DSP tools (typically filtering, pitch, and amplitude
modulation) the K2661's Variable Architecture lets you arrange a combination of any five DSP
functions from a long list of choices. The functions you choose define the type of synthesis you
use.
Each layer of every program has its own DSP architecture, which we call an algorithm . Within
each algorithm, you can select from a variety of DSP functions. Each function can be
independently controlled by a variety of sources including LFOs, ASRs, envelopes, a set of
unique programmable functions (FUNs), as well as any MIDI control message. The many
different DSP functions and the wealth of independent control sources give you an extremely
flexible, truly vast collection of tools for sound creation and modification. When you're ready to
jump in and start creating and editing programs, turn to Chapter 6.
Variable Architecture Synthesis Technology

KB3 Tone Wheel Emulation

In addition to VAST synthesis, the K2661 offers many oscillator-based programs that give you
the classic sound of tone-wheel organs like the Hammond B 3™. KB3 mode, as we call it, is
completely independent of VAST, and has its own set of editing procedures. You'll find details in
Chapter 6.

How the K2661 Works

The K2661 integrates three MIDI-driven components: a MIDI controller (the keyboard, or an
external MIDI controller, a sound engine, and a global effects processor (KDFX). The sound
engine responds to the MIDI events generated by the MIDI controller, and turns them into
sounds that are processed within the variable architecture of the algorithms—or by oscillators
for KB3 programs. The resulting sound can then be routed through KDFX and to the audio
outputs.
Introduction
VAST Synthesis
1-3