
Chapter 1: Introduction 1
chapter 1
Introduction
Thank you for purchasing Access Music Virus In-
digo, a real-time TDM plug-in version of Access
Music’s highly-acclaimed Virus Indigo synthe-
sizer.
Virus Indigo creates its sounds through analog
modeling. This technique uses DSP algorithms to
reproduce the sound and performance charac-
teristics of analog synthesizers. The sonic results
are virtually indistinguishable from the classic
ARP, Moog, and Oberheim synthesizers of the
70s. Virus Indigo for Pro Tools|HD
®
provides
power and flexibility far beyond these instru-
ments.
Virus Indigo features:
• Analog synthesis with FM (frequency mod-
ulation) and wave shaping
• Three oscillators per voice
• Sub oscillator
• Noise generator with white and pink noise
• Dual multimode filters (low-pass, high-
pass, band-pass, and band-reject)
• Vocoder
•Arpeggiator
• Two ring modulators
• Matrix modulation
• Chorus, phaser, reverb, and delay effects
• External input processing
• Polyphonic
• Multitimbral (eight parts per DSP)
In this guide, references to Virus Indigo also
include Virus IndigoV40. Differences be-
tween Virus Indigo and Virus IndigoV40
are noted where applicable. For more infor-
mation, see “Virus Indigo and Virus
IndigoV40” on page 2
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