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VG99WS01—Introduction to the VG-99
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Workshop
VG-99
V-Guitar System
Introduction to the VG-99
© 2008 Roland Corporation U.S.
All rights reserved. No part of this publication may be reproduced in any form without the written permission of Roland Corporation U.S.
The trademarks listed in this document are trademarks of their respective owners, which are separate companies from Roland. Those companies
are not ailiated with Roland and have not licensed or authorized Roland’s VG-99. Their marks are used solely to identify the equipment whose
sound is simulated by Roland’s VG-99.
VG99WS01
1
About the Workshop Booklets
Inside the V-Guitar System
Roland’s VG-99 V-Guitar System is, simply put, the most powerful guitar
processor ever made. It’s the third and latest generation V-Guitar system
from Roland, and it offers an astounding set of creative sound-making tools
for the guitarist. Featuring dual COSM instrument and amp modeling paths,
two independent multi-effects processors, massive realtime control options,
guitar-to-MIDI conversion, and USB, the VG-99 is a guitarist’s dream machine,
capable of creating sounds that are limited only by your imagination.
The “V” in V-Guitar stands for “virtual.” In computer
terms, virtual means to use software to create
something that doesn’t physically exist, or to recreate
something that exists in the real world in the digital
realm. The VG-99 is essentially a computer, one that’s dedicated to processing
guitar sounds. Its software uses Roland’s proprietary digital technology
called
“Composite Object Sound Modeling”—or “COSM” for short—to
process your guitar and turn it into a different guitar or another instrument,
one that’s created
virtually
, entirely within the VG-99.
Each VG-99 Workshop Series booklet focuses on one VG-99 topic, and is
intended as a companion to the
VG-99
Owner’s Manual
.
About This Booklet
In addition to instrument modeling, the VG-99 uses
COSM to create a multitude of different virtual
guitar amplifiers and speakers, from vintage to modern. To add the icing on
the cake, the VG-99 provides a staggering selection of effects to process your
sound just the way you like it, including COSM models of classic stomp box
effects. You can store all your sounds in 200 custom patches for later recall,
and control sounds and patches in real time in a number of ways.
This booklet introduces you to the VG-99. We’ll give you an overview of what
it is and what it does, and discuss its concept and application. We’ll also talk
about some of the technologies that are part of the VG-99.
The trademarks listed in this document are trademarks of their
respective owners, which are separate companies from Roland. Those
companies are not affiliated with Roland and have not licensed or
authorized Roland’s VG-99. Their marks are used solely to identify the
equipment whose sound is simulated by Roland’s VG-99.
Using USB, you can connect the VG-99 to your computer, where you can
transfer audio and MIDI back and forth, and even edit and store patches
using the VG-99 Editor software. With the Guitar to MIDI function, you can
use your guitar to trigger external MIDI instruments such as a hardware
synthesizer or a virtual instrument in a computer.
Understanding the Symbols in This Booklet
The VG-99’s versatile and convenient form
factor makes it easy to integrate into a
number of different environments. It works
great as a table-top device in a recording
studio, or it can be mounted in a rack with
the optional RAD-99 rackmount adaptor.
If desired, you can mount it on a stand for
quick access in a performance. An integrated
foot controller—the FC-300 (shown in the
image to the left)—is available as well,
which provides comprehensive foot control
for switching patches and controlling an
enormous variety of VG-99 functions.
Throughout this booklet, you’ll come across information that deserves
special attention—that’s the reason it’s labeled with one of the following
symbols.
A note is something that adds information about the topic at hand.
A tip offers suggestions for using the feature being discussed.
2
COSM Instrument Modeling
Unlocking Instrument Modeling with a Divided Pickup
With the VG-99’s COSM instrument modeling, you can turn your guitar into
a completely different instrument. That instrument could be:
an electric guitar—
Inside the VG-99 are ten electric
guitar models, including Fender Stratocasters, a
Gibson Les Paul, a Fender Telecaster, a Rickenbacker
360 12 string, a Gibson L4 archtop, and more. Each
electric guitar model has pickups that sound just
like the original articles, and you can shape the
tonality of the instruments to taste with a powerful
EQ. There’s even a “Vari” guitar model that allows
you to construct your own custom virtual electric
inside the VG-99.
an electric bass—
The VG-99 creates its virtual instruments by processing each of the guitar’s
six strings individually. This is accomplished by using a special pickup on
your guitar called a “divided” pickup, such as Roland’s GK-3. This type of
pickup is actually
six separate pickups
, one for each string. As you play, the
signal for each string—along with the output from your guitar’s normal
pickups, if desired—is sent through a special 13-pin cable to the VG-99.
Additionally, the divided pickup’s control section provides a knob and two
switches that allow you to control various VG-99 functions remotely from
your instrument, and a three-way switch for choosing the divided pickup,
the normal pickups, or both.
Six separate pickups, one for
each string
•
There are two different electric bass models, the classic
Fender Precision Bass and Fender Jazz Bass.
an acoustic instrument—
•
The VG-99 features models
of five different classic steel string flat-top guitars,
including a Martin D-28 and 000-28, a Gibson J-45
and B-25, and a Guild D-40. There’s also a nylon
string guitar, a resonator-type guitar (think
bottleneck blues), a banjo, and a sitar. As with the
electric models, there’s a variable acoustic
instrument, where you can build your own guitar,
with adjustable parameters such as body size and
type, as well as mic and pickup settings.
a synthesized instrument—
Three-way switch for
s
electing GK pickup and/
or normal guitar
GK knob and S1/S2 switches
for controlling VG-99 functions
Input for connecting the
guitar’s normal output
•
Utilizing digitally
created waveforms, the VG-99 can transform
your guitar into something completely
unique and un-guitar like. Use the Pipe model
to make your guitar sound like a woodwind
instrument, or the Organ model to impart,
well, an organ-like quality. Among the many
available synth voices is a spot-on model of the GR-300, Roland’s classic
analog polyphonic guitar synthesizer from the early 1980s.
13-pin output
Anatomy of the GK-3 Divided Pickup
A guitar’s normal pickups sense the sum total of the guitar’s six strings,
creating a single monophonic output. For this reason, they can’t be
used to drive the VG-99’s COSM instrument modeling section.
For more information on COSM instruments, see the
VG-99 Owner’s
Manual
.
Divided pickups are also sometimes called “hex,” “hexaphonic,” or
“polyphonic” pickups.
3
•
Installing a Divided Pickup
Alternate Tunings and Polyphonic Effects
The Roland GK-3 provides an easy way to add
divided pickup capabilities to your favorite guitar.
It can be easily attached to most electric guitars
with no modification to the instrument, and it
can also be attached to many steel-string acoustic
guitars as well. (Roland’s previous generation
divided pickups—the GK-2A and GK-2—can be
used with the VG-99, too.) Roland also offers the
GK-KIT-GT3, a kit version of the GK-3 that can
be permanently installed inside your instrument
(professional installation is required).
Guitar with a Roland GK-3
Divided Pickup installed
Once the VG-99 has each strings’ signals, it converts them to digital
information so they can be processed individually with its digital brain.
Besides transforming your guitar into any of the instruments described
previously, applying processing to each string individually allows for some
wild realtime pitch-shifting and effects options with COSM instruments,
such as the following.
Instant alternate tunings—
At the touch of a button, you
can instantly change your COSM instrument’s tuning
to whatever you like. DADGAD, Open D/E/G/A, and
various drop tunings are among the many presets, and you can create
your own user tunings as well.
Pitch-bend effects—
Another option is to purchase and install a piezo-type divided pickup
system. These systems incorporate pressure-sensitive piezo elements in
bridge saddles that replace the original saddles on your guitar. The output
from the six individual saddles is then fed to a preamp with a 13-pin output.
A piezo divided pickup system is necessary in applications where the GK-3
can’t be used, such as with a nylon-string instrument, or with any instrument
that has an unusually wide or narrow string spacing. A piezo system can also
be installed on a standard electric guitar as an alternative to the GK-3. Pickup
manufacturers such as RMC, L.R. Baggs, and Graph Tech Guitar Labs offer
piezo divided pickups. In most cases, professional installation is required.
•
You can change the pitch of an individual string or a
combination of strings using one of the VG-99’s controllers. This allows
you to create pedal steel and “B-bender” effects.
12-string emulation—
•
COSM lets you turn your guitar into a 12-string,
with both fine and course pitch control of the secondary strings.
Harmony—
•
Play instant harmonies based upon a key and scale that you
determine.
Polyphonic effects—
•
or“Poly FX” allow you to apply powerful
effects processing to each string individually. Available
Poly FX include compression, distortion, octave, and Slow
Gear.
So, Is It a Guitar Synthesizer?
RMC piezo pickups on a Breedlove steel-string acoustic guitar (left) and
a Godin Multiac SA nylon-string guitar (right)
Because it alters the entire guitar sound, has synth-type voices on board,
and interfaces with a divided pickup, the COSM instrument modeling in a
V-Guitar System is often mistaken for a guitar synthesizer. It’s not, however;
COSM actually does all its modeling magic in real time using super-fast
digital signal processing (DSP) chips to alter the guitar’s sound as you play.
In this way, it’s more akin to using a multi-effects processor—well, actually
multiple
super-powerful multi-effects processors, all running at once.
If you wish to purchase an instrument with a
divided pickup built in, guitar manufacturers such as
Fender, Godin, Brian Moore, Breedlove, Carvin, and
many more offer “Roland-ready” or “synth access”
guitars. These instruments are factory-equipped
with divided pickups and 13-pin outputs that can
be plugged directly into the VG-99 or any previous
V-Guitar System, as well as most Roland guitar
synthesizers and guitar-to-MIDI converters.
13-pin jack on a
Brian Moore iGuitar
4
•
Like the VG-99, a guitar synthesizer—such as Roland’s GR-20—utilizes string
information from a divided pickup. However, it processes that information
in a much different way. When a string is played and sensed by the divided
pickup, the guitar synth determines the pitch of the string, and then it
converts that pitch into digital information that
triggers
a sound engine,
either internally in the guitar synth or externally via MIDI. As such, the guitar
is only used as an input device—like the keys on a keyboard synth—to play
sounds you call up on a menu, such as piano, strings, drums, and so forth.
COSM Amps to the Max
Once you’ve created a COSM instrument—or
plugged your regular guitar into the GUITAR
INPUT—you can “amplify” it virtually using a
COSM amplifier model. The VG-99 offers 49
COSM amps, from vintage legends to modern
classics. Each amp model offers uncannily
accurate sound replication, as well as a set of
familiar controls (volume, bass, treble, bright
switch, etc.) as found on the real amp. The
amp’s speaker system—a critical component of any guitar amp’s sound—is
modeled as well, with a selection of five different virtual mics and variable
mic positioning. (You can mix and match speaker types at will, or turn the
speaker models off altogether if desired.)
With the VG-99, the guitar’s string signals are the fundamental building
blocks of the sound you hear, even when the realtime modeling process
modifies that sound into something quite unlike a guitar. As a result, playing
a COSM instrument always feels and responds just as naturally as playing
your normal guitar, with every subtle, expressive nuance coming through.
Guitar to MIDI
While COSM instrument modeling itself isn’t a guitar synthesizer,
the VG-99
does
have the ability to use the divided pickup signal
to trigger sounds in an external synthesizer or sound module via
MIDI. This is called the “Guitar to MIDI” function, and it’s basically like having
a Roland GI-20 GK-MIDI Interface built in.
Connecting a Normal Guitar Without a Divided Pickup
If you like the sound of your normal pickups as is—or you
don’t want to install a divided pickup—you can still use
your guitar with the VG-99. Just plug its output into the
VG-99’s rear-panel 1/4-inch GUITAR INPUT jack. You won’t
be able to use COSM instrument modeling (including its alternate tunings
and polyphonic effects) or the Guitar to MIDI function; those require a
divided pickup. But you can use all the rest of the VG-99’s processing options,
including COSM amps and effects.
As mentioned earlier, the Roland GK-3 and other divided pickup
systems allow you to send the guitar’s normal pickup output along
with the divided pickup output over the 13-pin cable connection. The
GK-3 control unit has an onboard switch to allow you to easily switch
between regular guitar, divided pickup output, or both, and the VG-99
has internal mixing options to blend the sounds as well.
For a detailed listing of the COSM amps and speakers, see the
VG-99
Owner’s Manual
.
5
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