Update and calibration
Updating firmware
The rmware le is a standard .syx le. To update, connect Mono to a
computer using the USB cable (MIDI won’t work). Hold [PATTERN] + [RUN]
and power the unit. The [SEQ] LEDs will ash. Launch your favorite sysex
program (“Sysex Librarian” on OS X, “MIDI SysEx Transfer Utility” on
windows and “amidi” on linux have all been tested). Set the output to Mono,
and “Delay between messages” at 1ms. Open the monosynth_VX.X.syx le,
and press send. The transfer takes about a minute or two. [SEQ] LEDs will
show the progress. Once the update complete, the synth will boot as usual.
Oscillators calibration
Like every analog synthesizer, the oscillators needs to be calibrated from
time to time. Mono’s oscillator and lter are no exception. To calibrate the
oscillator and lter, turn o the unit, hold [C] + [D], and turn the unit back on.
The calibration procedure will start. The [SEQ] LEDs indicate the progress
of calibration of each oscillator and lter, so it will restart at the beginning
twice. The calibration procedure takes about 3 minutes. It is recommanded
to calibrate Mono when it is hot, after being powered for at least 15
minutes. Note that the VCA is open when calibrating, so either disconnect
the output or mute the synth’s channel !
Resonance calibration
The maximum amount of resonance you want to get out of your synth is
very subjective. Some people like very distorted self-oscillating resonance,
others prefer no self-oscillation. On Mono it is possible to calibrate the
maximum resonance level. To do so, turn o the synth, hold [C#] + [D#], and
turn it back on. [PATTERN] and [RUN] LED will ash. You can play the synth
normally and set the resonance at desired maximum level (best way is to
turn down both osc levels, hold a note and increase resonance until you are
happy with the self-oscillation level). When you’re done, press [RUN], the
resonance maximum will be saved.
Midi implementation
Velocity
The velocity value of an incoming MIDI note aects the amplication level
of that note, internal default value is 100, any incoming value below 100 will
result in a quieter note, any value above it, a louder note.
Parameter editing via CC
Mono synth and modulation parameters can be edited via control change
message, it is also possible to select the active parameter via CC.
Potentially, the synth engine can be entirely controlled via MIDI. It is also
possible to send the parameter automation with the [PARAM SND] setting,
on the same CC. This is disabled by default.
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