38
The Modulation Matrix
The power of a versatile synthesiser lies in its 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. Summit provides considerable flexibility of control routing, and there is a dedicated menu for this, the Mod Menu. As with every other aspect of
Summit, the Modulation Matrix routings for each of the two synths generating Parts A and B may be configured independently by selecting A or B in MULTIPART CONTROL when using a
Multi Patch.
The available modulating sources and destinations to be modulated can be thought of as the inputs and outputs of a large matrix:
Osc1Ptch
Osc2Ptch
Osc3Ptch
O123Ptch
Osc1VSnc
Osc2VSnc
Osc3VSnc
Osc1Shpe
Osc2Shpe
Osc3Shpe
Osc1 Lev
Osc2 Lev
Osc3 Lev
NoiseLev
Ring Lev
VcaLevel
Filt Drv
FiltDist
Filt Res
Lfo1Rate
Lfo2Rate
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 DESTINATIONS
ModWheel
Direct
AftTouch
ExprPED1
BrthPED2
Velocity
Keyboard
Lfo1+
Lfo1+/-
Lfo2+
Lfo2+/-
AmpEnv
ModEnv1
ModEnv2
Animate1
Animate2
CV +/-
MOD SOURCES
Lfo3+
Lfo3+/-
Lfo4+
Lfo4+/-
BndWhl+
BndWhl-
FfreqSep
FM Ns>O1
FiltFreq
Velocity
Lfo2+
Osc2Shpe
Velocity
Lfo2+
Osc2Shpe
Slot 16
Slot1
Velocity
Lfo2+/-
Osc2Shpe
Depth
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”: each of the two Summit synths has
16 such slots, allowing an enormous range of modulation possibilities.
Press the Mod button
9
to open the Modulation Menu, which comprises 16 pages, one
for each slot. Select a slot with the Page I and Page H buttons. The page lets you define
which (one or two) modulation sources are to control – i.e., modulate - a ‘destination’
parameter. The routing possibilities available in each slot are identical, and hence the
control description below is applicable to all 16 slots.
The default menu display for Slot 1 is shown below:
Destin O123Ptch
:HDirect : Direct
Depth +0
The Modulation Matrix is both variable and additive. What do we mean by
‘variable’ and ‘additive’ as applied to a 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.
SOURCE 1: LFO
SOURCE 2: MOD WH EE L
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 WH EE L
SOURCE 1: MOD WH EE L
SOURCE 2:
SOURCE 1: LFO
SOURCE 2:
SOURCE 1: MOD WH EE L
SOURCE 2:
SOURCE 1: LFO
SOURCE 2:
To Next Page
Loading...
