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22 CHAPTER 4
Introduction
THE FIRST FILTER
Now we will take a look at a component
of a synthesizer that is generally
regarded as the most important func-
tional unit as it enables drastic sound
shaping measures: the filter - or in the
case of the Virus, the two filters.
But first we will concentrate on just one
of the two filters.
Use the UP or DOWN buttons to activate
the filter section FILT. The second enco-
der knob in this row is labeled CUTOFF
(not to be confused with CUTOFF 2!).
Rotate the encoder to the left and right
and note how the sound becomes mud-
dier and clearer in response to the direc-
tion in which you turn the encoder. (To
ensure this effect and the following
aural experiments are most pro-
nounced, adjust the amplifier envelope
so that the Virus generates a constant
level while you hold a key down).
This is how a low pass filter works: it sup-
presses, or in technical jargon, attenu-
ates the higher frequencies in a signal
and allows the lower frequencies
through. Think of the CUTOFF encoder
as a bouncer and the Virus as your pub.
You can tell it which frequencies to let in
and which frequencies to keep out. The
frequencies above the so-called cutoff or
filter frequency are suppressed, those
below it remain unaffected.
Summary of Contents for VIRUS C SERIES
Page 1: ......
Page 3: ...Table Of Contents ...
Page 7: ...ACCESS VIRUS RACK 5 ...
Page 11: ...ACCESS VIRUS RACK 9 ...
Page 15: ...Introduction ...
Page 33: ...ACCESS VIRUS RACK 31 The Second Filter ...
Page 35: ...ACCESS VIRUS RACK 33 Filter Routing Her is the filter routings capabilities of the Virus ...
Page 54: ...52 CHAPTER 4 Introduction ...
Page 55: ...Concept and Operation ...
Page 60: ...58 CHAPTER 5 Concept and Operation ...
Page 61: ...Operation ...
Page 67: ...All About The Memory ...
Page 70: ...68 CHAPTER 7 All About The Memory ...
Page 71: ...Modmatrix And Definables ...
Page 75: ...Master Clock And Midi Clock ...
Page 77: ...The Effects Section ...
Page 79: ...Audio Inputs ...
Page 83: ...Audio Routing ...
Page 85: ...Categories ...
Page 87: ...Random Patch Generator ...
Page 90: ...88 CHAPTER 14 Random Patch Generator ...
Page 91: ...Additional Functions ...
Page 94: ...92 CHAPTER 15 Additional Functions ...
Page 95: ...The Parameters ...
Page 132: ...130 CHAPTER 16 The Parameters ...
Page 163: ...The Vocoder ...
Page 169: ...The Virus and Sequencers ...
Page 173: ...ACCESS VIRUS RACK 171 Organizational Information ...
Page 180: ...178 CHAPTER 18 The Virus and Sequencers ...
Page 181: ...Tips Tricks Words Of Wisdom ...
Page 201: ...ACCESS VIRUS RACK 199 MIDI ...
Page 204: ...202 CHAPTER 19 Tips Tricks Words Of Wisdom ...
Page 205: ...Appendix ...
Page 215: ...ACCESS VIRUS RACK 213 FCC Information U S A ...
Page 217: ...ACCESS VIRUS RACK 215 FCC Information CANADA ...
Page 219: ...ACCESS VIRUS RACK 217 Other Standards Rest of World ...
Page 223: ...ACCESS VIRUS RACK 221 Garantie Bestimmung ...
Page 225: ...ACCESS VIRUS RACK 223 Warranty ...
Page 226: ...224 CHAPTER 20 Appendix ...
Page 227: ...ACCESS VIRUS RACK 225 Warranty ...