PROGRAM > MS-20EX: Patch Panel 6–1: Patch Panel
271
IN jack
This is the input to the S&H. You can connect this to the
noise generator, a VCO, an LFO, etc.
OUT jack
This is the output of the S&H, which carries the held,
“steppy” signal.
Creating the classic sample-and-hold effect
To create the classic random-stepping sample-and-hold
effect, for rhythmic, bubbling filters or “computer noise”
pitch effects:
1. Connect the WHITE or PINK output of the NOISE
GENERATOR to the SAMPLE & HOLD IN jack.
2. Connect the MG RECTANGLE output to the
CLOCK input.
3. On the MG, EG, & MODULATION page, turn the
MG WAVEFORM knob all the way to the right.
4. Connect the SAMPLE & HOLD OUT to the
modulation destination.
For instance, the LPF CUTOFF FREQ IN jack, or the
VCO 1+2 CV IN jack.
5. Adjust the MG FREQUENCY to control the speed of
the sample & hold effect.
Generating a random value at note-on
Using noise as the input signal, you can generate a random
value at note-on by connecting the KBD TRIG OUT to the
CLOCK input. This will also let through additional values at
note-off, which may or may not be desirable.
If you’d prefer to generate a random value at note-on only:
1. Connect the WHITE or PINK output of the NOISE
GENERATOR to the SAMPLE & HOLD IN jack.
2. Connect the Switch output to the CLOCK input.
3. Leave the Switch AMS source set to Off.
With the AMS source set to Off, it will automatically trigger
the CLOCK at note-on, but not do anything else.
Of course, you can also route a real AMS source to the
CLOCK input, and trigger it manually or via an LFO, Step
Sequencer, etc.
For a more diffuse, “splatty” effect, try connecting EG1
REV to the CLOCK input.
6–1e: ENVELOPE GENERATORS 1 and 2
EG outputs
For descriptions of the EG parameters, see “5–1c:
ENVELOPE GENERATOR 1” on page 264, and “5–1d:
ENVELOPE GENERATOR 2” on page 264.
EG 1 OUT jack
This allows you to route EG 1 to another point on the Patch
Panel.
Note that, when manually connected to the VCO FREQ
input, this produces a different result than the normalled
signal; for more information, see “EG1/EXT” on page 260.
EG 1 REV OUT jack
This is the inverted shape of EG 1. The signal starts at the
maximum value, falls to 0, and then releases back to the
maximum value.
EG 2 REV OUT jack
This is the inverted shape of EG 2. The signal starts at the
maximum value, falls to 0, rises up to the sustain level, and
then releases back to the maximum value.
Trigger inputs
TRIG IN jack
This lets you use an external trigger sources (such as the MG
rectangle output, the trigger output of the ESP, or a switch
controller via AMS) to trigger both EG 1 and EG 2.
The EGs trigger when the TRIG IN moves from high to low,
such as when the MG Rectangle wave switches to the
bottom portion of the waveform. When the TRIG IN signal
goes high again, the EGs enter their release phase.
Note that the MG’s LED is on when it is low. Initially, this
seems like the opposite of what one might expect. When
using the MG to trigger the EGs, however, this makes
perfect sense: the EGs start when the LED goes on, and
release when the LED goes off.
EG 1 TRIG IN jack
This is similar to the TRIG IN jack, above, but it triggers
Envelope Generator 1 only.
6–1f: Modulation VCA (MVCA)
This is a second VCA, intended for scaling modulation
signals.
For instance, to create a delayed vibrato:
1. Connect the MG triangle wave output to the MVCA
input
2. Connect the MVCA output to the TOTAL input
EG 1 is normalled to the CONTROL input, so without any
additional connections, you can simply:
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