Analogue Solutions Concussor - Manual (Page 12)

ANALOGUE SOLUTIONS
CONCUSSOR e&oe (c) 12-2007 12
BD99 Bass/Elec.Tom Drum Module
Inputs: Outputs: Power supply:
Accent socket 0-12V 3.5mm audio out +/-12, 5V
Trigger socket 5-12V 6.35mm audio out
Tune CV 0-12V
Controls: Indicators: Size:
Tune1 (sweep) Trigger LED 10HP
Tune2
Attack
Decay
Level
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.
The Tune CV input can be used to alter the tuning with any voltage. E.g. use LFO for slow pitch sweeps. Using
audio or any other high frequency signals to modulate tuning allows wild cross-modulated drum sounds to be produced.
This sort of modulation of pitch provides an extreme range of sounds to be produced, aside from the standard TR909
style kick.
The trigger LED will light each time a trigger pulse is received.
Controls
Sweep Called ‘Tune’ on original TR909. Sets the amount of envelope sweep on the pitch.
Tune
Sets the initial pitch of the drum sound
Attack Controls ‘click’ level (like stick hitting drum skin). The click you hear is actually a burst of filtered
noise.
Decay Sets decay time
Level
Sets output level
Note: the BD99 12pin power header is mounted up-side-down. Always en sure power cable is fitted correctly.Doefper
power socket is upside down on this module, though this should not cause confusion as the module is always supplied
with the power cable fitted.
Introduction
The BD99 is an accurate replica of the TR909 bass drum sound. The
module is entirely discrete analogue circuitry, based as closely as possible
on the original.
The BD99 can produce more than just bass drum sounds...
The original TR909 has a tune control. This really sets envelope
sweep on the pitch, so we have named this control Sweep on the
BD99 for accuracy. We have added a true tuning control which enables
the pitch to be changed. The pitch can be brought right up, enabling
elec tron ic Tom and Conga style sounds to be produced.
Also, by modulating the pitch via the Tune CV input with a high
frequency signal (CV or Audio), new and excinting waveforms can be
produce. This radically changes the sound of the BD99, effectively
turning it into a drun synth.
☺
The BD99 can be tuned way low... watch your bass bins mate!