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Dark time
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Functions
Functions Dark time
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3.3.3. MIDI Clock
You can sync Dark Time with any suitable piece of MIDI gear (e.g. drum machines, software/hardware-
based sequencers etc.). To do this, Dark Time sends and receives MIDI clock data. This is a pulse signal
of 24 pulses per quarter note (24 ppq) which represents the tempo and additional start-/stop- and continue-
commands. These data are not related to a specific MIDI channel but global. Settings of a certain send or
receive channel are not required for clock data transmission.
Dark Time as master:
To synchronize an external piece of MIDI gear (e.g. a drum machine) to Dark Time using MIDI clock, simply
set the Sync switch to ” Internal ” position. No additional settings are required. Set up the external device
as a ”slave” as described in its own manual. Now Dark Time will control the tempo and start/stop/continue
functions of the slaved unit.
Dark Time as slave:
If an external device is to control Dark Time’s tempo via MIDI clock, it has to be set up as master, with Dark
Time acting as slave. Set Dark Time’s Sync switch to “ MIDI/USB ”. Dark Time will now obey to incoming
MIDI clock data and respond to external start/stop/continue commands.
If you want to run Dark Time at a precisely defined tempo measured in BPM, it is useful to synchronize
Dark Time to a device that allows tempo adjustment in BPM values.
3.3.4. Analogue Interface
Of course, Dark Time allows interaction with non-MIDIed equipment. It will perfectly fit into an analog setup.
The necessary connections can be made via the rear analog interface panel of Dark Time. It sports twelve
1/8” sockets with in- and outputs.
CV/gate outputs:
Let’s have a closer look at the connectors, shown in the figure below. Here, both step registers send out
control voltages and gate signals individually. These signals are necessary to control an external analog
synthesizer.
• The voltage levels sent out from the CV 1 Out and CV 2 Out sockets depend on the
setting of the step controls, the transpose and the range switches. The most common
use is controlling the pitch of an external synthesizer. The sockets provide a voltage
range between -2V and +10V. Of course these voltages cannot only be used for
controlling the pitch of a synthesizer, but also for controlling other parameters like
e.g. filter cut-off frequency, VCA amplitude, you name it.
• The sockets labeled Gate 1 Out and Gate 2 Out send out – you have already
guessed it – a gate signal, again for each register individually. Active sequencer
positions put out a signal of +5V/+12V (or inverted) at these sockets. The duration
of a gate signal depends on the setting of the Pulsewidth control (s. page 13).
positive gate: off on off inverted gate: on off on
The gate signal triggers the envelope generator of an external analog synthesizer which, in turn, will gene-
rate an audible tone as one envelope generator is commonly used to control the amplitude of a VCA.
Since Dark Time puts out control voltage and gate signal of both registers individually (Link-switch in
position ”2x(1-8)”), some interesting tricks can be achieved, e.g.:
• Control two synthesizers in parallel with two eight-step sequences.
• Control two different parameters of one synthesizer at the same time.
Some vintage synthesizers require a gate signal of +10V or higher (e.g. ARP 2600). In order to match also
with these machines, Dark Time‘s gate output level can be changed from +5V (default) to +12V by setting
of an internal jumper. Please refer to page 26, section 3.4.
Other synthesizers require negative (inverted) gate signals – please see above. In order to match also with
these machines, Dark Time‘s gate output can be inverted.
Inverting the gate signal is done via a sub menu. This sub menu also provides some more functions, that
help to make Dark Time‘s CV/gate output more flexible. You became familiar with this sub menu earlier
when exploring Dark Times MIDI functions. The CV/gate related functions of this sub menu are described
on the following page.
Synchronisation via MIDI Note Events in External mode:
A quite different but pretty interesting alternative to synchronise Dark Time to external MIDI gear is via
MIDI-note events: When switched to External mode (Sync switch in position „External“), every time Dark
Time receives a certain MIDI note-on command, the sequencer switches one step forward. To enable this
function, we need the MIDI Learn function, described on page 16, section 3.2.2. Instead of a MIDI controller
number, Dark Time has to ”learn” a certain MIDI note.
Step-switch setting ”Stop” disabled ( Step switch 10):
You may disable the setting ”Stop” of all step switches in oder to avoid unwanted stopping of the sequencer
when tweaking it live.
You will find the sub-functions for step switches 2-4 as well as 9 and 11 described later in this manual.
Dark Time MIDI-Drumcomputer
MIDI-Clock
MIDI-Clock
Sync: Internal
MASTER
MASTER
SLAVE
SLAVE
Sync: Midi/USB