Tone2 Saurus ANALOG SYNTHESIZER User manual

SAURUS ANALOG SYNTHESIZER
Reference MANUAL

Legal Notice
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Support and contact information
If you have any difficulties installing or using Saurus Analog Synthesizer, please contact
us by visiting our website and clicking the Support button.
Website http://www.tone2.com
User Forum http://www.tone2.org/forum/index.php
Support [email protected]
redits
Development: Markus Feil, Bastiaan van Noord
Programming & Graphics: Markus Feil
Manual: Bastiaan van Noord, Jay Levzi
Sound design: Ed Ten Eyck (E T), Himalaya (H), Massimo Bosco (MxS), Marco Scherer
(MAS), BigTone (BT) The Unshushable Coktor (TUC), Stephen Krajewski (SK), George
Zondagh (GZ), Jamie ocwra (J ), Grzegorz Bartoszek (GB), Reinhard Reschner (RR),
SupremeJA (SJA), Sean Charles (SC), Rob Fabrie (RF), Bryan Lee (XS), avid Goodwin
(KRM), aniela Schmidt ( S), Rob Lee (RL), Jay Levzi (JL), Bastiaan van Noord (BN),
Markus Feil (MF)
Thanks go to: Anna Krause, family and friends, and all Tone2 customers for their
continued support

TABLE OF ONTENTS
1 Introduction.......................................................................................................1
1.1 Welcome to Saurus Analog Synthesizer...................................................
1.2 Features....................................................................................................
2 Installation and Authorization.........................................................................2
2.1 Automatic installation for Mac & PC...........................................................
2.2 Manual installation for PC...........................................................................
2.3 Manual installation for Mac.........................................................................
3 Saurus Interface controls.................................................................................4
4 The Saurus interface.........................................................................................6
4.1 The patch browser.................................................................................
4.2 Main section.........................................................................................
4.3 Oscillator section..................................................................................
4.4 Filter section.........................................................................................
4.5 Envelopes.............................................................................................
4.6 LFOs.....................................................................................................
4.7 The Modulation Matrix..........................................................................
4.8 Arpeggiator & Gate..............................................................................
4.9 Effects sections & Boost.......................................................................
5 Modulation Matrix: the new X=value modifiers..............................................21
6 Tone2 Product atalog................................................................................24-30

1. Introduction
1.1 Welcome to Saurus Analog Synthesizer
Congratulations on purchasing Tone2's Saurus Analog Synthesizer.
Saurus is a brand new synthesizer that uses true analogue modeling. Some of the circuits
from classic synthesizers were examined, analyzed and modeled into Saurus to bring the
best sonic quality of a past age brought forward in a digital one.
Saurus pairs two oscillators with two sub-oscillators employing both standard waveforms
and more exotic waveforms modeled after the classic units examined.
Combine this with a powerful filter section, an extensive modulation system in the form of
LFO's, Envelopes and a modulation matrix, all routed into a high quality effects section
giving Saurus an incredible array of sonic possibilities at your fingertips.
1.2 Features
•True Analog Modeling Technology
•High-end sound quality
•Covers all important aspects of traditional
analog synths
•Low CPU usage
•Mono, Legato & Polyphonic modes
employing analog voice management
•Two Syncable Oscillators and two Sub
Oscillator
•Offers not only standard waveforms like
square and saw but also includes a large
number of waveform types from exotic
analog synths
•Pulse Width Modulation and Oscillator
Sync applicable to every waveform
•Oscillator drift, phase and noise
modulation controls
•Noise FM, AM and ringmodulation for
Oscillators
•High quality analog filter section with
self-oscillation, nonlinearity, 6 filter
types, filter FM and filter feedback
•LFOs capable of running at audio-rate
•Arpeggiator section with extensive
configuration possibilities; chord
steps, step velocity,...
•Modulation Matrix with several new
modulation possibilities, including
unique modulation value modifiers
•Programmable gate
•4x Stereo Unison modes with spread
and panning control
•Analog modeled istortion and Tube
amp
•Optional (on/off) Psycho-Acoustic
processing
•High-end quality Effects
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2. Installation & authorization procedure
Together with the download link from Share-it you have received attached to the product
delivery email a keyfile called 'Saurus.t2k', this file contains your personal serial number &
your name and is used to unlock the full version.
Please note:we recommend for installations on Windows7 & Vista to be done with admin.
rights using 'Run as Administrator' for both the Saurus installer and host program.
2.1 Automatic Installation (recommended) for P & Mac
1. Close your host (Logic, Live, Cubase, etc.)
2. Install the full version of the plugin. Note: the demo version can not be unlocked
3. Open your host program
4. o a plugin rescan in the host if it does not list Saurus as plugin. etailed
instructions on how to perform a rescan can be found in your host's manual
5. Open Saurus
6. Click on the registration box in the middle
7. Select your keyfile 'Saurus.t2k' to activate the full version
8. Restart the plugin. Note that some hosts programs may require a complete restart.
Click inside the activation screen to browse – select your Saurus keyfile.
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2.2 Manual installation for P
1. Close your host (Cubase, Sonar, Samplitude, Live, etc.)
2. Install the full version of the plugin. Note: the demo version can not be unlocked.
3. Copy 'Saurus.t2k' to the VST directory. Steinberg hosts often use C:\Program
files\Steinberg\VSTplugins as the default plugin path. You can also take a look at
your host's folder configuration.Note that the 'Saurus.t2k' keyfile should be inside
the same folder the Saurus.dll is.
4. Open your host program.
5. o a plugin rescan in the host if it does not list Saurus as plugin. etailed
instructions on how to do a plugin rescan are found in your host's manual.
6. Open Saurus. Now the normal user interface appears. If this is not the case close
your host and go back to step 3 as most likely you did not copy the keyfile to the
right place.
2.3 Manual installation for Mac
1. Close your host (Logic, igital Performer, Live, Cubase, etc.)
2. Install the full version of the plugin. Note: the demo version can not be unlocked.
3. Copy 'Saurus.t2k' to 'Library/Audio/Plug-ins'. The correct path for the file is:
'/Library/Audio/Plug-ins/Saurus.t2k'.
4. Open the host.
5. o a plugin rescan in the host if it does not list Saurus as plugin. etailed
instructions on how to do a plugin rescans are found in your host's manual.
6. Open Saurus. Now the normal user interface appears. If this is not the case close
your host and go back to step 3 as most likely you did not copy the keyfile to the
right place.
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3. Saurus Interface controls
Buttons
There are two types of toggle buttons in Saurus, one where clicking a button cycles
between all options available, a good example of this are the OSC1 oscillator waveform
selectors where clicking on the OSC1 button will cycle through its waveforms.
The other type is the toggle on/off buttons used for the Sync or rift options, clicking on
these will either enable or disable the feature.
To speed up the selection process options can also be switched-to directly by clicking on
the light above or below the selection. Active selections are clearly shown as ‘glowing’ as if
illuminated by a lamp.
Rotary Knobs
The rotary knob control increments a parameter value linearly from a minimum threshold
value to a maximum threshold value.
To increase a knob’s setting value, turn it clockwise: click-and-hold the knob with your
mouse and then move it up and/or to the right. To decrease, move down and/or to the left,
or anti-clockwise.
If you press the Shift key on your keyboard and then click-and-hold the left mouse button
on a knob, you will have fine control.
There are two type of value ranges for the rotary knobs, depending on the parameter the
knob is controlling. There is the unipolar knob – that goes from zero to a positive value or
the bipolar knob – that goes from a minus value to through zero and then to a positive
amount.
Bipolar values are useful for setting modulation amounts (which can be positive or
negative) or pan where zero is the center.
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ontext Menus
The small LC -style screens contain some parameters that are actually context menus
(excluding the PARAMETER ISPLAY section).
Click on a parameter to show a context menu of options. Click on the desired setting to
select and close the menu. The display changes to show the current value.
In the example pictured above clicking on 'Tutorial' will open the category menu from which
you can choose a preset category to open, clicking on the preset name 'Analog rift' will
open the list of all presets available from the Tutorial category.
Previous/Next
In Saurus, the left and right arrows in it’s browser are used to select the previous and
next patches (program) or category (bank)
Click the program up arrow to select the previous patch in the current category, click the
program down arrow to select the next patch in the current category. The browser display
changes to shows the newly selected patch.
Click the bank up arrow to select the previous patch category, click the bank down arrow to
select the next patch category. The browser display changes to show the current selected
patch category.
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4. The Saurus User Interface
The Saurus GUI is split into various sections. The oscillator section offers all controls over
the 2 main oscillators and the sub-oscillators.
The Filter section controls the filter to be used and various modulation methods. The
Effects section allows for full control of all the effects within Saurus.
There are also sections for the two LFO's and an additional envelope. The LFO's and Aux
Envelope can be routed by using the section for the Mod-Matrix and the Arp-Gate
sections. The main area is where the user can control the global settings for the synth
such as volume etc. The patch browser is where all banks and presets can be saved and
recalled. The keyboard and mod and pitch wheels can be played using a mouse control.
4.1 The Patch browser
The browser allows loading, saving and general patch management functionality.
In the blue display area of the browser you have two rows of information. The top row
shows the currently selected category. If you left or right click on the bank name, a drop-
down list will appear where you can select any other category installed on your computer.
These will include the standard categories, any additional expansions bought from Tone2
or categories you created yourself.
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The bottom row shows the currently loaded patch. If you left or right click on the patch
name, a drop-down list will appear where you can select any patch in the current category.
The bottom right of the BROWSER window serves as a parameter indicator. If you alter
any parameter in Saurus’ interface, the parameter name and value will be displayed here.
Along the bottom of the patch window are 5 buttons.
The program buttons cycle through all the presets loaded in the current bank. The bank
buttons cycle through the various category lists in the bank loaded. The file button opens a
dialog menu where you can load or save a sound, download more sounds, visit the Tone2
website, view the manual or initialize various sections of the synth.
4.2 Main section
Inside the main section you'll several controls that have to do with general operation of
Saurus: Volume, Pan, Glide, Unison controls and the psycho-Acoustic boost switch.
Master voice mode selectors
Saurus offers both monophonic and polyphonic voice modes, the following modes are
available:
•Mono - This mode sets the polyphony to 1 note (monophonic) which mimics the way the
classic analog synthesizers of the past behaved. The envelopes are retriggered each time
a new note is played.
•Legato - This mode is also monophonic but if a new note is played while an
existing note is still being played it will glide to the new note without re-triggering
the envelopes.
•OldPoly8 - In this mode the Voice handling behaves similar to that on old 8 voice
polyphonic synthesizers. If the note is already playing and the same note is triggered
again the same voice will be used and the envelopes are retriggered in a soft way. The
advantage of this mode is that the voice mix will be less 'muddy' when melodies are
played in a fast way and the CPU usage is low.
•Poly16 - Modern, polyphonic voice handling with 16 voices.
The maximum number of voices playing at the same time is 64 when 4x Unison is used together
with Poly16 mode (64 = 16x4).
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Volume & RMS meter:
The volume knob controls the amount of output level send by the plugin, in the top right
of the Saurus interface you'll notice an RMS meter which displays the average output
power level.
When designing patches it is recommended to keep its level around 0dB. To do this you
can adjust Saurus' volume to reach 0dB with three keys pressed in Polyphonic modes or
one note in Monophonic mode.
Unison controls:
The Unison section offers both a 2x and 4x Unison mode which layers multiple copies of
the oscillator's sound. The Spread knob works in combination with the two Unison modes
and allows you to select the amount of detuning and spread to applied to the different
copies of the sound.
Note that With Unision mode activated the panning (Pan) control switches to controlling
the amount of stereo separation in the unison instead of the standard left/right pan control.
When Unison is off Pan will function as a standard panning control.
Glide knob:
The Glide adjusts how much the current note's
pitch glides to the next note's pitch, the default
setting for this knob is zero (no glide)
Boost control:
The Boost control found inside of the Volume
section will switch on the Psycho
Accoustic feature which dynamically boosts
frequencies giving an enhanced boosted sound
without drastically changing overall output
volume.
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4.3 Oscillator section
OS 1 & OS 2 – These buttons cycle between the various waveforms available for
oscillators 1 and 2, the current active waveform is highlighted.
The PW knob next to the waveform selectors will morph from the current wave into
another waveform, a description of all waveforms can be seen in the list below:
1. Saw - PW morphs to double saw
2. Square - PW morphs to Pulse and Peek
3. Trianguloid - A 4step Triangle-style waveform where PW morphs to 4-step Saw
4. Sinoid - A sinoid waveform; PW morphs to Square
5. ouble square - Sounds similar to the PWM Sawtooth wave of the Alpha Juno. PW
morphs to ouble pulse
6. Comb - Sounds similar to the Comb wave of the Alpha Juno. Good for vocaloid sounds;
PW morphs the vocal
7. Organ-stack - Several stacked waves which sound similar to the analog Farsivar Organs.
PW morphs to double saw
8. ouble pulse - PW morphs to square wave
SUB 1 & 2 – The sub buttons cycle between the various waveforms available for sub
oscillators 1 and 2, the current selected sub oscillator waveform is highlighted.
The sub oscillator waveforms are:
1. Sawtooth - 1 octave lower
2. Square wave - 1 octave lower
3. Inverted Sawtooth - 1 octave lower
4. Square wave - 2 octaves lower
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5. 25% Pulse - 2 octaves lower
6. Sawtooth - 1 octave and sawtooth 2 octaves lower
7. Square wave - 1 octave and square wave 2 octaves lower
8. Triple saw - 2 octaves lower
PW – Adjusts the pulse width for the given waveform
MIX – Adjusts the mix amount between oscillator and sub oscillator.
TONE - Adjusts the tone control for this oscillator, which basically makes the sound for
that oscillator darker or brighter which can give the oscillator more bite or control the
higher harmonics for frequency modulation.
F/A Noise - The F/A Noise knob controls the amount of noise generated by either
Frequency modulation (FM)or Amplitude Modulation (AM)
The default setting for this knob is zero, turning the knob clockwise will increase the
amount of Amplitude Modulation applied whereas turning it counter clockwise will apply
and increase the amount of Frequency Modulation.
SYNC – Enabling the sync option will synchronize oscillator 2 to oscillator 1.
RING – This is the control for the amount of Ring Modulation to be used for both oscillator
1 and 2.
ETUNE – This is a control to adjust globally oscillator 1 and 2's fine tuning by +/- 100%
TUNE – This control adjusts the oscillators coarse tuning.
RIFT – The drift control available from the oscillator section will apply a certain amount of
drift to the oscillators, allowing minor inconsistencies and resulting in a more authentic
analog sound.
Note that it is recommended to switch off rift if Oscillator Sync is enabled, if both are
enabled it may lead to glitches and general degradation of how both features sound.
PHASE – this adjusts the starting phase of each oscillators waveform.
MIX 1 / 2 – This is the mix control for the amount of oscillator 1 and sub with oscillator 2
and sub.
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4.4 Filter section
RIVE – This is the control to adjust the amount of extra gain to the oscillator audio signal
before it enters the filters. It can change the characteristics of the filter completely.
KEY – This is a bi-polar control that determines how the note played on the keyboard
affects the filter cut off frequency. At positive values above 0, higher note values will
increase the cut off frequency. At negative values below 0, higher note values will
decrease the cut off frequency.
CUTOFF – This is the cutoff control for the filter
RESO – The resonance of the filter
ENV – The filters envelope modulation amount. The values for the envelope itself can be
set in the A SR controls in the filter section.
SOFT – The control for non linearity and saturation in the filter. If “soft” is activated, the
filter will sound more analogue and resonance will be less aggressive.
FILTER SELECTION BUTTON – This chooses the type of filters available in Saurus, these
include
I. 12dB Low Pass, a precise model of an analogue chamberlain filter with self oscillation and
non-linearity with a little feedback. It has character which is similar to the MS-20
II. 12dB High Pass, a precise model of an analogue chamberlain filter
III. 12dB Band Pass, a precise model of an analogue chamberlain filter
IV. 24dB Low Pass, a precise model of an analogue butterworth filter with self oscillation and
non linearity.
V. Notch filter
VI. Formant filter
FM – This determines the amount of Frequency Modulation (FM) applied to the filter.
FEE BA. - This is the feedback control for the filter, it controls how much of the signal is
fed back into the filter.
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4.5 Envelopes
There are two envelopes in Saurus that are directly tied to the relevant section they
appear in, the Amp Envelope in the global section, and the filter envelope. But Saurus
offers an additional envelope called Aux (Auxiliary). This can be used for further
modulation of various parameters which can be assigned to the envelope inside
the modulation matrix.
What is an Envelope?
An envelope generator allows a synthesizer to mimic aco stic instr ments’ properties of
changing vol me and timbre over time. Traditionally, an envelope generator prod ced a
control voltage that varied over time which co ld be sed to a tomatically change the filter
c t off or amplifier vol me.There are many different types of envelopes b t the most common
one is known as an ADSR which is an acronym for Attack, Decay, S stain and Release which
describes the fo r controls of the envelope.
Attack – Is a time val e which states how long it takes for the envelope to go from zero to
maxim m peak when a key is pressed.
Decay – is a time val e which states how long it takes for the envelope to drop to the
s stain level.
S stain – Is a level val e which states the highest val e while the key is being held down
after the Attack, Hold and Decay stages.
Release – Is a time val e which states how long it takes for the the envelope to drop back
down to zero after the key has been released.
4.6 LFOs
There are two LFO's available within Saurus. Both are freely assignable from within the
modulation matrix and can be used basically anything from modulating the filter cutoff to
modulating an oscillator's waveform (LFO>PWM)
LFO WAVEFORM BUTTON – This cycles
the waveform for the LFO to be used. The
available waveforms are :
I) Triangle
II) Square
III) Saw
IV) Ramped random
Note: Additional LFO waveforms (Like a sinoid or smoothed versions) can be created by using
the filter (X) function in the matrix.
FREQ. - This controls at which frequency the LFO runs; the LFO speed
BPM – This will synchronize the LFO's frequency to the host.
PHASE – This will adjust the starting position of the LFO's waveform, when the knob is
turned completely to the left it the LFO will be free running.
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4.7 Modulation Matrix
The MO MATRIX or Modulation Matrix is a system that allows you to flexibly assign
different modulators (such as LFOs or envelopes) to different destinations (such as the
filter, amplifier or even other modulators).
There are three modulation matrix pages available, each offering 5 different assignable
modulation options.
To use the mod matrix the procedure is very simple :
1. Choose a modulator (modulation source) in the drop-down menu. This is what
causes the modulation or changing effect
2. Choose a target (destination) in the drop-down menu. This is what gets affected
by the modulation or changing effect.
3. rag the slider in the center of the bar left or right in a negative (left) or positive
(right) direction to increase or decrease the values.
Source menu options:
Off : efault matrix source is set to off
Vol Env : The Volume envelope will be used as
modulation source
Filt Env : The Filter envelope will be used as
modulation source
Aux Env : The Auxilary envelope will be used as
modulation source
LFO1+- : LFO1 in bipolar mode as modulation
source, this uses LFO1's negative and positive
values
LFO2+- : LFO2 in bipolar mode as modulation
source, this uses LFO1's negative and positive
values
LFO1+ : LFO1 in unipolar mode as modulation source, only uses LFO1's positive values
LFO2+ : LFO1 in unipolar mode as modulation source, only uses LFO1's positive values
Arp/Step+ : Applies the arp's velocity steps as modulation source using only positive values
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Arp/Step+- : Applies the arp's velocity steps as modulation source using both positive and
negative values
Key up : Applies a On/Off Gate modulation; i.e, on key press its value is 1, on release it's 0
Key down : Applies a Off/On Gate modulation; i.e, on key press its value is 0, on release its 1
VoiceOut : Applies the amount of active Voices value to modulate
onstant: Applies a constant value to modulate, the amount is set by the value slider
Random : A random value will be used to modulate
Flipflop : An on/off value will be used as modulation source; could for example be used to pan
from left to right on keypress
WhiteNoise : Uses white noise as modulation source
PinkNoise : Uses pink noise as modulation source
Impulse : A short impulse is used as modulation source; could for example be applied to sharpen
the attack portion of a sound
Decay4ms > Decay16s : ecay will use an internal envelope to modulate, options are envelopes
that run from 4 milliseconds to 16 seconds.
X*X : Uses the X multiplied by X value modifier as modulation source
Sqrt (X) : Uses Squareroot X value modifier as modulation source
Filter (X) : Uses the filter X value modifier as modulation source
Limit (X) : Uses the Limit X value modifier as modulation source
Key : Uses the played note value as modulation source
Velocity+ : Uses the postive Velocity values to modulate
Velocity+- : Uses both the positive and negative Velocity values to modulate
Modwheel : Uses the Modulation Wheel as modulation source
Pitchwheel : Uses the Pitch Wheel as modulation source to modulate
Aftertouch : Uses the keyboard's incoming aftertouch values to modulate
Breath : Responds to breath controller (CC#2) as modulation source
Foot : Responds to Foot switch controller as modulation source
MainVol : Responds to Main Volume controller (CC#7) as modulation source
Express : Responds to Expression controller (CC#11) as modulation source
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Hold : Responds to Hold pedal (sustain) on/off (CC#69) as modulation source
16 > 19 : Responds to CC#16 to CC#19 (continuous controllers) as modulation source
Destination menu options:
Off - The default selection; no
modulation destination is selected
Volume - Selects the Master Volume
control as destination
Pan – Selects the Master Panning
control as destination
Spread – Selects the Unison Spread
control as modulation destination
utoff - Selects the Filter Cutoff as
modulation destination
Reso - Selects the Filter Resonance
as modulation destination
FM - Selects the Filter FM control as modulation destination
Drive - Selects the Filter rive control as modulation destination
Feedback - Selects the Filter Feedback control as modulation destination
FilterEnv – Selects the Filter Envelope control as modulation destination
Osc1 Tune - Selects OSC1's Tune control as destination
Osc2 Tune - Selects OSC1's Tune control as destination
Osc Mix ½ - Selects the Oscillator1 / Oscillator2 Mix control as destination
Osc1 PWM - Selects OSC1's Pulse Width Modulation (PWM) control as destination
Osc2 PWM - Selects OSC2's Pulse Width Modulation (PWM) control as destination
Osc1 Mix - Selects the Mix control for Oscillator1 / Sub-Oscillator1 as destination
Osc2 Mix – Selects the Mix control for Oscillator2/ Sub-Oscillator2 as destination
Osc1 Tone - Selects OSC1's Tone control as destination
Osc2 Tone - Selects OSC2's Tone control as destination
Osc1 Noise - Selects OSC1's Noise control as destination
Osc2 Noise - Selects OSC2's Noise control as destination
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Osc Detune - Selects the oscillator etune control as destination
Osc Ring - Selects the Ring modulation control as destination
Osc1 Fine - Selects OSC1's Fine tune control as destination
Osc2 Fine - Selects OSC2's Fine tune control as destination
Osc1 Semi - Selects OSC1's Semi notes control as destination
Osc2 Semi - Selects OSC2's Semi notes control as destination
Osc Oct - Selects the Master Octave as destination
Osc1 Oct - Selects OSC1's Octave as destination
Osc2 Oct - Selects OSC2's Octave as destination
Osc Pitch – Selects the Master Pitch as destination
Osc1 Pitch - Selects OSC1's Pitch control as destination
Osc2 Pitch - Selects OSC2's Pitch control as destination
LFO1 Speed - Selects LFO1's Frequency control as destination
LFO2 Speed - Selects LFO2's Frequency control as destination
Vol A - Selects the Volume Envelope's Attack control as destination
Vol D - Selects the Volume Envelope's ecay control as destination
Vol S - Selects the Volume Envelope's Sustain control as destination
Vol R- Selects the Volume Envelope's Release control as destination
Filt A - Selects the Filter Envelope's Attack control as destination
Filt D - Selects the Filter Envelope's ecay ccontrol as destination
Filt S - Selects the Filter Envelope's Sustain control as destination
Filt R- Selects the Filter Envelope's Release control as destination
Aux A - Selects the Auxilary Envelope's Attack control as destination
Aux D - Selects the Auxilary Envelope's ecay ccontrol as destination
Aux S - Selects the Auxilary Envelope's Sustain control as destination
Aux R - Selects the Auxilary Envelope's Release control as destination
X:=Value – Selects the X:=Value destination
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Matrix1 -> Matrix15 – Sets the modulation destination to matrix position 1 through 15
Osc1 Vol - Selects Osc1's volume control as destination
Osc2 Vol - Selects Osc2's volume control as destination
Noise Vol – Selects an internal noise generator as destination
4.8 Gate & Arpeggiator
Saurus also features a dedicated Gate which can be used to modulate volume or any
other option within Saurus' modulation system.
When the Arp/Gate menu is switched to one of the Gate modes the steps will function as
a modulation value provider, meaning that each step will output a specific value, these
values can then be routed within the Modulation Matrix to setup a Trance gate or drive
other types of modulation.
The step values can be edited by click-holding one of the small rectangle shaped steps
and dragging them up or down to in/decrease their value.
Note that when in Arp mode these same steps can still be used for Gate and/or modulation
purposes, the main difference between the Arp and Gate mode is that in Arp mode the
Arpeggiator is also active.
Saurus ships with some very good Trance and modulation gate presets, just open the
patch manager and browse to the Gate category to hear some examples.
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