Corsynth DR-03 Hi-Hats / Metal User manual
USER MANUAL
dr-03 hI-HATS / METAL
dr-03 hI-HATS / mETAL
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The DR-03 Hi-Hats / Metal is the third module in the DR
series dedicated to analog drum synthesis. It is designed to
synthesize hi-hats and metal percussion like cowbells or
cymbals and even FX. Three different voices are available at
the same time Closed Hi-hat, Open Hi-hat and Metal plus a
Hihat mixed output .
Hi-Hats
To synthesize a Hi-Hat there is a key element that denes
the nal result, the primary sound used to create it. The
DR-03 has three possible sound sources , a white noise
generator, a mix of six square wave oscillators and a mix of
ring modulated square wave oscillators. These three sound
sources, together with the VC Band Pass lter and the Low
Pass Filter allow the DR-03 to create a wide range of hi-hat
sounds.
Another interesting feature is that the Open Hi-hat decay
time is voltage controlled and it can be triggered indepen-
dently or conditioned to the Closed Hi-hat.
Metal
The Metal sound is created using two ring modulated
square wave oscillators and a VC Band Pass Filter. The
frequency of one oscillator can be manually controlled and
the other one has a xed frequency. The variable oscillator
can modulate the cutoff of the BPF to create metallic FM
sounds.
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DR-03 Hi-Hats / Metal
Front Panel
Open Hi-Hat Decay
modulation level
Open Hi-Hat
Output LED
BPF resonance
Hi-Hat
BPF Frequency
Open Hi-Hat
trigger mode
Open Hi-Hat
Decay time
Hi-Hat LPF frequency
Hi-Hat BPF
FM level
Metal oscillator
frequency
Metal BPF Frequency
Closed Hi-Hat
Output LED
Metal Output LED
Closed Hi-Hat
Decay time
Hi-Hat source Noise oscillator
mode
Metal
Decay time
Metal BPF
FM switch
Open Hi-Hat
Decay CV input
Open Hi-Hat
trigger input
Closed Hi-Hat
trigger input
Hi-Hat BPF
FM CV input
Metal trigger input
Hi-Hat mix output
Closed Hi-Hat output
Open Hi-Hat output
Metal BPF
FM CV input
Metal output
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CH OUT
DR-03 HIHATS / METAL BLOCK DIAGRAM
HIHATS BLOCK DIAGRAM
∑
∑
CUTOFF
LPF
RESONANCE
LEVEL
CUTOFF
BPF
ENVELOPE ( AD )
DECAY
ENVELOPE ( AD )
TRIG OH
LEVEL DECAY
DEC MOD
HH MIX
OH OUT
∑
AUDIO SIGNAL
CONTROL SIGNAL
EXC / IND
TRIG CH
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METAL BLOCK DIAGRAM
AUDIO SIGNAL
CONTROL SIGNAL
CUTOFF
BPF
ENVELOPE ( AD )
DECAY
CH OUT
METAL TUNE
M F CV
FM ON / OFF
TRIG MET
NAME
POTENTIOMETER
NAME FUNCTION BLOCK
NAME
INPUT
XOR GATE
SWITCH
NAME OUTPUT
∑
MIXER
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CONTROL DESCRIPTION
CH DECAY
This knob sets decay time of the closed hit-hat. It goes
from 10ms up to 150ms.
OH DECAY
This knob sets the base decay time of the open hit-hat. It
goes from 50ms up to 3s.
CH DECAY
10mS 150mS
OH DECAY
50mS 3 S
DECAY MOD
This knob sets the modulation level to the open hi-hat
decay time.
DECAY MOD
MIN MAX
HI-HAT SOUND SOURCE
This switches select the audio source to create the hi-hat
sound.
- NOISE : a white noise generator
- OSC : a cluster of six square wave oscillators.
RM: the oscillators are ring modulated by pairs and
the three resulting signals are mixed together.
SQR : the six oscillators mixed together.
RM
SQR
NOISE
OSC
Hi-Hat Controls
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BPF FREQ
This potentiometer sets the Hihat bandpass lter cutoff
frequency.
CV LEVEL
This potentiometer sets amount of external modulation
that affects the Hihat bandpass lter cutoff frequency.
BPF FREQ
1KHz 17KHz
CV LEVEL
MIN MAX
RESONANCE
This potentiometer sets amount of resonance to the
Hihat bandpass lter.
LPF FREQ
This potentiometer sets the Hihat lowpass lter cutoff
frequency.
IND
EXC
OPEN HI-HAT - TRIGGER MODE
This switch allows to chose what happens when the Open
Hihat is on and the Closed Hihat gets triggered
IND : The Open Hihat is not affected by the Closed Hihat.
EXC : When the Closed Hihat is triggered the Open Hihat
stops immediately.
RESONANCE
MIN MAX
LPF FREQ
LF HF
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METAL TUNE
The Metal sound is composed by two ring modulated
oscillators. The rst oscillator has a xed frequency. The
frequency of the second oscillator is controlled by this
knob. It goes from 500Hz to 5Khz
METAL TUNE
500Hz 5KHz
METAL BPF
This potentiometer sets the cutoff frequency of the Metal
Band Pass Filter.
METAL DECAY
This knob sets decay time of the Metal sound. It goes
from 20ms up to 1s
METAL BAND PASS FILTER VCO MODULATION
This switch turns on the FM between the variable metal
oscillator and the Band Pass Filter.
Metal Controls
METAL BPF
500Hz 7 KHz
METAL DECAY
20mS 1 S
FM ON
FM OFF
TRIG CH TRIG CH
Closed Hi-Hat trigger input. Any signal with a positive
voltage higher that 3.5V can be used.
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CH OUT CH OUT
Closed Hi-Hat output.
TRIG OH TRIG OH
Open Hi-Hat trigger input. Any signal with a positive
voltage higher that 3.5V can be used.
OH OUT OH OUT
Open Hi-Hat output.
DEC MOD DEC MOD
Open Hi-Hat decay modulation input.
HH MIX HH
Hi-Hat mixed output. This ouput mix of the outputs of
the Open and Closed hi-hat.
HH F CV HH F CV
Hi-Hat Band Pass Filter frequency CV input.
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MET F CV MET F CV
Metal Band Pass Filter frequency CV input.
TRIG MET TRIG MET
Metal trigger input. Any signal with a positive voltage
higher that 3.5V can be used.
MET OUT MET OUT
Metal output.
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Trimmers and power connectors
Module Format : 5U, MU format ( Synthesizers.com, Moog )
Module Width : 2 MU ( Moog unit )
Module Depth : 52 mm ( 2,05 inches )
Power : +15V@70mA , -15V@60mA
Power connectors : MU, MOTM ( 4 pin )
TECHNICAL DATA
+15V+5V-15VN/C GND
MU
GND +15V-15V GND
MOTM
IMPORTANT !!!!
This module has two power connectors
(MU and MOTM).
Only one is needed to power the
module. (MU or MOTM).
Never connect both at the
same time.
MU
power connector MOTM
power connector
Noise level
Open HH
Envelope Time
BPF HH initial
frequency
BPF Metal initial
frequency
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MODULAR LEVEL
MIN MAX
MODULAR SYNTHS
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