Analogue Solutions Concussor - Manual (Page 16)

ANALOGUE SOLUTIONS
CONCUSSOR e&oe (c) 12-2007 16
HH88 Dual HiHat Drum Module
Inputs: Outputs:
CH Accent socket 0-12V CH audio out
CH Trigger socket 5-12V OH audio out
OH Accent socket 0-12V Source
OH Trigger socket 5-12V
OH Decay CV 0-12V
Power supply:
+/-12, 5V
Controls: Indicators:
Tune
None
CH Decay
CH Level
OH Decay
Size:
OH Level 10HP
Use
The trigger input has a range of about 5 to 12V. A trigger or gate signal of at least 5V will trigger the sound. A larger
trigger pulse will increase the level of the sound (accent the notes). When the accent socket is used, the trigger input
socket only triggers the sound and the level of the sound is controlled by the voltage of the CV at the accent socket.
The accent voltage can be from another trigger pulse generator, or from an LFO or Envelope. When using for example
an LFO, you can have the level changing with the LFO sweep.
When both hihat sounds receive a trigger at the same time, a muted hihat sound is produced.
The HH audio source - which is six detuned square wave tones - is available at the SOURCE output directly and
unprocessed. The Tune control changes the tuning of one of the six square wave tones.
The OUT sockets are the audio outputs for the CH and OH sounds.
When using the (OH) Decay CV input, turn the OH Decay pot fully clockwise. The CV input subtracts from the
control.
The SOURCE output is the source sound of the hihats, unfiltered. Use this in conjuction with a modular system to
create new drum sounds.
Controls
Tune
Sets tuning of 1 of the 6 oscillators that makes up the sounds.
CH Decay Sets the closed hihat decay time.
CH Level Sets closed hihat output level.
OH Decay Sets the open hihat decay time.
OH Level Sets open hihat output level.
Introduction
The HH88 is an accurate replica of the TR808 hihat drum sound. The
module is entirely discrete analogue circuitry, based as closely as possible
on the original.
The HH88 has addition of a Tune control for both, and Decay on the
closed hihat sound.
The two hihat sounds are made up of six filtered square wave oscillators,
fed through separate VCA’s controlled by envelopes (a VCA and EG per hihat
sounds).
The HH88 can produce more than just hihat drum sounds...
The HH88 has the addition of a decay control for the closed hihat,
and the decay time for the open hihat has been extended. This en ables
TR808 cymbal style sounds to be produced.