User Manual

26
The Modulation Matrix
The heart of a versatile synthesiser lies in the ability to interconnect the various controllers,
sound generators and processing blocks such that one block is controlling – or
“modulating” - another, in as many ways as possible. Peak provides considerable flexibility
of control routing, and there is a dedicated menu for this, the Mod Menu. The available
modulating sources and destinations to be modulated can be thought of as the inputs and
outputs of a large matrix:
The example here shows how any two sources, in this case Velocity and LFO 2, can
simultaneously modulate the same parameter, in this case Osc 2 Shape. Many mod matrix
assignments will only use a single source. Note that the two modulation sources are
effectively multiplied together, and that the Depth parameter controls the overall degree of
modulation.
The diagram depicts a single matrix “slot”; Peak has 16 such slots, allowing an enormous
range of modulation possibilities.
Press the Mod button
56
to open the Modulation Menu, which comprises two pages. The
menu may be visualised as a system for connecting controlling sources to a specific area of
the synth. Each such connection assignment is termed a ‘slot’, and there are 16 such slots,
accessed on Page 1). Each slot defines how one or two control sources are routed to a
controlled parameter. The routing possibilities available in each of the 16 slots are identical,
and the control description below is applicable to all of them.
MOD MATRIX 1/2
Slot 1 h
Destin 0123Ptch
Depth +0
MOD SLOT 1 2/2
SourceA Direct h
SourceB Direct
Depth +0
Direct
0123Ptch
Osc1Ptch Osc2Ptch Osc3Ptch
Osc1VSnc Osc2VSnc Osc3VSnc
Osc1Shpe Osc2Shpe Osc3Shpe
Osc1 Lev Osc2 Lev Osc3 Lev
NoiseLev
Ring Lev
FiltFreq
VcaLevel
Filt Drv
FiltDist
Filt Res
AmpEnv A
AmpEnv D
AmpEnv R
ModEnv1A
ModEnv1D
ModEnv1R
ModEnv2A
ModEnv2D
ModEnv2R
FM O1>O2 FM O2>O3 FM O3>O1
O3>FiltF
Ns>FiltF
MOD SOURCES
MOD DESTINATIONS
ModWheel
AftTouch
ExprPED1
BrthPED2
Velocity
Keyboard
Lfo1+
Lfo1+/-
Lfo2+
Lfo2+/-
AmpEnv
ModEnv1
ModEnv2
Animate1
Animate2
CV +/-
Velocity
Lfo2+
Osc2Shpe
Velocity
Lfo2+
Osc2Shpe
Velocity
Lfo2+
Osc2Shpe
Velocity
Lfo2+
Osc2Shpe
Velocity
Lfo2+
Osc2Shpe
Velocity
Lfo2+
Osc2Shpe
Number 16
Number 1
Velocity
Lfo2+/-
Osc2Shpe
Depth
The Modulation Matrix is both variable and additive. What do we mean by
a ‘variable’ and ‘additive’ matrix?
By ‘variable’, we mean that it is not just the routing of a controlling source to a controlled
parameter which is defined in each slot, but also the “magnitude” of the control. Thus
the ‘amount’ of control – or Depth – used is up to you.
By ‘additive’ we mean that a parameter may be varied by more than one source, if
wished. Each slot allows for two sources to be routed to a parameter, and their effects
are multiplied together. This means that if either of them is at zero, there will be no
modulation. However, there is no reason why you can’t have further slots routing these
or other sources to the same parameter. In this case, the control signals from different
slots “add” to produce the overall effect.
Mod Wheel Position
SOURCE 1: LFO
SOURCE 2: MOD WHEEL
SOURCE 1: LFO
MOD SLOT NO 1
MOD SLOT NO 1
MOD SLOT NO 1
MOD SLOT NO 1
MOD SLOT NO 2
MOD SLOT NO 2
SOURCE 2: MOD WHEEL
SOURCE 1: MOD WHEEL
SOURCE 2:
SOURCE 1: LFO
SOURCE 2:
SOURCE 1: MOD WHEEL
SOURCE 2:
SOURCE 1: LFO
SOURCE 2: