7.MIDI configuration >>
mclk send
This option configures out-going MIDI clock.
MIDI clock can be sent whether Cirklon is acting as tempo master, or slaved to another
device.
There are a number of options for clock transmission to support manual pausing and re-
synchronisation of slaved devices using the transport keys.
The options are:
off- MIDI clock is not sent on this port
norml- standard MIDI clock is sent.
tempo
- only MIDI clock tempo ticks are sent, without START or STOP messages. This
is useful for devices such as effects processors with a MIDI clock sync function.
By default, Cirklon sends MIDI clock ticks even when stopped. This allows suitably capable
slave devices to lock to the correct tempo before starting.
If you don't wish to send MIDI clock ticks when stopped, this option can be toggled by
holding SHIFT and pressing the encoder below <mclk send>.
When this option is active, < and > characters will appear around the clock send mode.
A further three clock options, rsyn1, rsyn2 and rsyn3, provide various re-synchronisation
effects for slaved devices while Cirklon is already running.
Cirklon Sequencer User Manual
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When Cirklon is started, ports set to rsyn1 or rsyn2 will send a MIDI clock START as normal.
With the rsyn3 option selected, MIDI clock does not start when Cirklon is first started.
While Cirklon is running, you can manually stop the sync output for any port set to rsyn by
holding SHIFT and pressing RUN.
The effect varies as follows -
rsyn1
- MIDI clock will be stopped just before the end of the current bar, then
automatically restart at the beginning of the following bar. This is useful for slaves which
have somehow got out of step with Cirklon. For example, if you are using odd-length
patterns on a TB303.
rsyn2
- MIDI clock will be stopped immediately SHIFT + RUN is pressed. A further
press of RUN will restart sync at the start of the next bar. This allows, for example, a slaved
drum machine to be dropped out, then later re-started in sync.
rsyn3
- MIDI clock will not start when Cirklon is first started. You need to press RUN,
or SHIFT + RUN once more after starting, to start slaved devices. Further presses of RUN /
SHIFT + RUN behave as for rsyn1
For a slave that can be manually stopped, pressing RUN allows it to be re-started in sync with
Cirklon. This is especially useful for machines like the Roland TR909, which must be stopped
to switch between play and edit modes. You can manually stop the 909 with its STOP key,
switch between play/edit, then re-start it in sync from Cirklon without having to restart
everything.
MIDI Clock Reception
There is no setting to enable MIDI clock reception for a MIDI input port, as it is handled
automatically.
If Cirklon is stopped, and a MIDI clock START message is received at any input port, Cirklon
will switch to MIDI clock slave mode and start running in time with the incoming tempo.
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