D4
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HIGH SAMPTE RATE 16
BIT DRUM MODUTE / STEREO SAMPTES
External
Trigger
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Set-Up
Guide
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EXIERNAL
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QUIGK
5EI-UP
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The D4 has twelve
trigger
inputs
designed
to
accommodate
the
most
widely
used
drum
pads
and other triggering
sources.
It's
triggering
mechanism is an advanced
signal to midi converter
which
incorporates
five user controllable parameters.
Trigger
parameters
are independent for
each of the twelve inputs, and
the set
up is global
for all drumsets.
The
five
types of user controlled parameters are:
1. VCURVE. There are
eight separate curve tables,
0 through
7
which represent
the velocity curve, or
sensitivity
of the trigger
input. Curves 1-3 have the least amount
of sensitivity;
curve
4
has the median, or
"average
type
of play"
sensitivity; and
curves 5-7
are
the
most
sensitive. Curve 0 is
"Unassigned".
This is a
special situation
parameter
which is fully
explained
in section 5.2 of the D4 Reference Manual.
2. XTALK. The
crosstalk parameter is
the
trigger suppression
level adjustment. It
is used to control
interaction problems
between
pads
or
drums. Crosstalk
problems
can occur when
two or more pads are mounted
on
a single stand or rack.
3.
DCAY. This
represents
the
signal decay time and
threshold
of the
D4's
trigger inputs. In other words,
DCAY
controls
the
amount of
time between once
a pad
has been
struck
and
triggers,
to when
it
will trigger
again from another hit.
When
properly
adjusted, this
parameter
defeats
"double
triggering
"
by
allowing
the
D4 to
determine
which
signals
are actual
hits, and which
are
secondary decay signals.
4. NOISE. The NOISE parameter allows you to control the
noise floor,
or the signal
level
threshold
that an
exterior
vibration or sound
must
exceed before
it will
trigger a drum
sound.
This is used mostly in situations where the stage
volume and vibrations
are
strong enough to
"rattle"
the
drum
hardware
to such
a point that the D4
"thinks"
these
vibrations are
actual hits.
5. GAIN.
This is the signal strength that the transducer
is
sending to
the triggers in the
D4, It's adjustment is very
similar
to that of a tape recorder's
VU meter.
With
the
gain
threshold set too
low, soft
hits may never
be
recognized.
With the
gain
set too high,
you may
experience
false,
or
double triggering. A properly
adjusted
gain
setting will allow
the
highest
dynamic range
for
the
pad
being
used.
Nofe: For more
detailed information
and
examples,
regarding
the
functions
of these individual
parameters, please refer
to
Chapter 5 of the D4 Reference
Manual.
When
triggering
from pads
always follow
these 5 basic steps:
1. Plug
io
a!!
of the triggers you will
be using.
.
Plug all
of the
triggers you
will
be
using into
the rear panel
jacks.
Since
the triggers are
interactive,
the D4 needs
to
"see"
all
of the signals
simultaneously.
.
Use the following guide
for
your
trigger inputs. The
trigger
default note numbers
correspond
to these
drum sounds.
1.
Hat
2.
Bass
drum
3.
Snare
4.
Toml
5. Tom2
5. Tom3
7. Ride
Cymbal
8. Crash Cymbal 1
9. Crash Cymbal 2
10.
Conga
11.
Hi Timbale
12. Hi Agogo
Nofe:
Drum
sets 17
&18
use
a
different
set of default note
numbers.
The
trigger
default note
numbers
for all pre
set drum
sets
can be found
in the D4
Factory Drumset
Reference
Chart.
Turn
the
note
chase feature
off.
o
Do
this
by
pressing
the note
chase
button on
the
front
panel
so that
the LED is
off. Note
chase is a feature
that
automatically
displays the
data of
the
most
recently
struck
pad,
enabling
you
to easily
"move"
around
the
kit
for
editing
purposes.
Flowever,
the active
trigger
should
always
be
selected
manually
since other unadjusted
inputs
could
"fire"
simultaneously
during
editing resulting
in confusion
on the
display.
Note; The
note
chase LED
also functions
as a
signal
indicator
and
will flash
when a
trigger is generated.
l
t
3.
Next, manually select a trigger
to
ediL
.
Press the
Ext Trig
button once
to enter the
page
showing the
editable
parameters for
the
TRIG number, VCURVE
selection,
and MIDI note assignment.
The
cursor will
appear
under the trigger
number field.
.
Use the
Data wheel to select the trigger
you
wish
to
edit.
4. Select the
velocity cunte.
r
Move the
cursor
under
the
VCURVE
field.
o
Choose
the
sensitivity
value which bests
suits the style of
play,
or
the pads
being
used. For average
play,
(hits
ranging
from very
soft to
very hard)
the default
setting of
4 will give
you
the
full range of sensitivity which corresponds to
MIDI
velocities
1 through 127.
Nofe:
VCURVE 0, Unassigned, is fully explained
in
the
D4
Owners
Manual.
5. Choose
the
MIDI note number.
Note:
The
default
trigger note
numbers in the D4
correspond
to
General
MIDI, so
in many
cases
it may
not be necessary
to change
the
assignments. These default settings
can be
found in
the
Factory
Drumset Reference
Guide
included with
your D4
literature.
If
you
choose to
make changes:
.
Move the cursor under the
NOTE field
and
select the desired
MIDI note number.
5. Adiust the GAIN
for
the selected
higger.
.
Press the Ext Trig button twice
to
get
to the
page
showing
the
trigger
number and
GAIN
editing
parameters.
.
Move the cursor under the
gain field and strike the
pad.
Now the lower LCD line will urn
into a bar-graph meter that
shows the
peak
strength of the trigger.
o
Adjust the
gain
by
gradually turning the
Data
wheel until
a
powerful suike results in the
meter reaching the
right-most
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