Gotharman deMOON User manual

Gotharman’s deMOON
User Manual

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Index
Main Features 3
What Is The deMOON 4
deMOON’s internal flow 5
deMOON front 6
deMOON ack 8
How To Get Around On The deMOON 9
The Pattern/Sound select page 10
The Edit pages 11
Overview Of The Edit Group Pages 12
Explanation Of The Edit Pages 13
Sequencer 13
Note Randomizer 16
Oscillators 17
Filters 23
MiniGran 30
Distortion 32
Midi 33
Save Pattern 34
deMOON MIDI implementation 35

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Main Features
• 4 note polyphonic Oscillators with continuously variable waveforms, wave shape modulation,
fm and pwm which works on all waveforms.
• 4 high quality unique sounding analog modelled bpf/lpf/hpf filters.
• Granulator effect.
• 5 distortion types.
• 4 LFO’s with continuously variable waveforms, waveshape modulation and rate modulation.
• 2 envelopes.
• Filter random generator.
• Various control sources for every parameter.
• Note randomizer.
• 32 step step sequencer which is MIDI syncable, has one note track, one velocity track and one
controller track, has realtime transpose, and a keyboard (arpeggiator) mode, in which, you can
gate and transpose the sequence via a connected MIDI keyboard.
• Storage of 128 sounds and sequences in eeproms. No need to worry about changing back up
batteries.
• Direct MIDI control of most parameters.
• Boxed small and compact – easily portable.

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What is the deMOON?
The deMOON are a 4 note polyphonic virtual analogue filterbank synthesizer build on the latest
DSP technology. That it’s a filterbank synthesizer means, that instead of having only one or two
filters to treat the sound, like most synthesizers, it has four filters forming a bank. A filter are an
excellent tool for recreating the reflections that comes from an acoustic box, like a violin box or the
human mouth, but having only one filter limits the number of possible reflection emulations a lot.
Having four fully tweakable good sounding filters, like on the deMOON, expands the creational
possibilities and the possibility to recreate acoustic instruments a lot.
Combine the filterbank with the same high quality oscillators, a wicked granulator effect, a
distortion effect, four LFO’s and endless routing possibilities (the oscillators can also be selected as
modulators) and you got the deMOON’s strong sound engine.
Since it is small and very portable, a step sequencer and a headphone output was added, so you can
let your creativity run loose with it everywhere. It’s even possible to power supply it from a
standard 9V battery (a special cable is needed).
At top of it all a note randomizer, that makes sequences unmechanical, was also added.
All of this is stuffed into a small and sturdy metal box.

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DeMOON front
Edit1 / Ctrl 2: When on the pattern select screen (the screen showing on the picture) and on the edit
page select screen, this knob transmits midi controller 2 internally, and tweaks all
parameters, which has midi controller 2 selected as modulation source.
When on a parameter edit screen, this knob adjusts the parameter showing at the left
of the screen.
Edit2 / Ctrl 3: When on the pattern select screen (the screen showing on the picture) and on the edit
page select screen, this knob transmits midi controller 3 internally, and tweaks all
parameters, which has midi controller 3 selected as modulation source.
When on a parameter edit screen, this knob adjusts the parameter showing at the
middle of the screen.

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Play / Enter: This knob starts and stops the internal step sequencer. It also works as a midi note on
indicator – every time a midi note on, on the selected midi channel, are received it
will light up.
When you select a new pattern, change the controller number for the sequencer
controller track or save a pattern, it will start blinking, and you will have to push it to
confirm.
Cursor (click) value: This knob navigates around, changes pattern, and changes various switch
functions on the parameter edit screens.
If the cursor is blinking, turning this knob will move the cursor. Pushing it will stop
the cursor from blinking, to change a value, or entering another screen.
If the cursor is not blinking, turning this knob, will change the value of the parameter,
where the cusor are located. Pushing it will get the cursor blinking to move it, or it
will enter another screen.
Volume: Changes the output volume on the stereo outputs.

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DeMOON ack
Connections
9VDC: Connect the supplied power adaptor to the socket. The switch beside it are the power on/off
switch.
MIDI in: Connect this to the MIDI out of a MIDI transmitting device (MIDI keyboard,
sequencer, computer or whatever).
Output L/hp jack: This is the left line output, and needs to be amplified. Connect it to an amplifier
or a mixer. It also doubles as a stereo headphone jack.
Output R jack: This is the right line output, and needs to be amplified. Connect it to an amplifier
or a mixer. LEAVE THIS UNCONNECTED IF YOU CONNECT HEADPHONES
TO THE L/HP JACK.

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How to get around on the DeMOON
Some main rules: If the cursor is blinking, you can move it by turning the cursor(click)value
encoder.
If the cursor is not blinking, you can change the value of the parameter the cursor are located below,
by turning the cursor(click)value encoder.
By pushing the cursor(click)value encoder, you change the cursor from blinking to not blinking and
vice versa.

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The pattern/sound select page
This is the deMOON main page. Every time you turn on your deMOON, it will for a short while
write: ”Gotharman’s deMoon”, and right after that, it will go to this screen.
On the top of the display it writes the name of the selected pattern/sound. It remembers what pattern
was selected, when it was turned off, and goes to that pattern when it is turned on again.
On the bottom of the display it writes the selected pattern bank and number. The deMOON has
eight banks (A H) with each 16 sounds (128 in all). The number shown in paranthes, are the midi
program change number you will have to transmit to the deMOON, to select this pattern, from an
external midi device.
To change pattern: If the cursor is not blinking, push the cursor(click)value encoder, to make the
cursor blink. Rotate the cursor(click)value encoder in either direction to place the cursor under the
letter, if you want to change the bank number, or the number if you want to change the pattern
number. Push the cursor(click)value encoder, so the cursor is not blinking. Rotate the
cursor(click)value encoder to select the pattern you want. It will write the pattern name on the top of
the display. The play/enter knob will now start to blink. Push the play/enter knob to confirm change
to the selected pattern.

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The Edit pages
NOTICE: The edits you do, are not automatically stored in memory. If you would like to keep your
creation, you wil have to SAVE the pattern. How to do that, are explained later in this section.
How to enter the edit pages from the pattern select page:
If the cursor is not blinking, push the cursor(click)value encoder, so the cursor is blinking. Rotate
the cursor(click)value encoder until the cursor is located under ”Edit”. Push the cursor(click)value
encoder. Now this screen should appear:
and the cursor are blinking. If you want to exit back to the pattern/sound select screen, rotate the
cursor(click)value encoder so the cusor locates under eXit, and push it.
If you, on the other hand, wants to start editing some sounds and/or sequences, make sure that the
cursor is located under the number, and push the cursor(click)value encoder. Now the cursor will
stop blinking, and by rotating the cursor(click)value encoder, you can now select among various
edit pages. Pushing the cursor(click)value encoder again, enters the edit page.
Inside an edit page, it might look like this:
When you enters an edit page, the cursor are blinking. By placing the cursor under the number in
the upper left corner of the display, and pushing the cursor(click)value encoder you can select
among various edit pages in the selected edit group. By placing the cursor under the ”X” and
pushing the cursor(click)value encoder, you will exit to the edit page group select page.
The two parameters shown in the left and in the middle of the display are changed by rotating the
edit1 and edit2 knobs. The parameter to the right is changed by moving the cursor to it, and use the
cursor(click)value encoder.

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Overview of the edit group pages:

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Explanation of the edit pages
The Sequencer pages
The deMOON sequencer are a one track monophonic type with a maximum of 32 steps. It has
separate tracks for note, velocity and controller. Tracks are "recorded" by entering values for each
step. It can be controlled from an external midi keyboard in various ways.
All parameters in both
the sequencer and synth section can be changed, even while the sequencer is running.
Push the cursor(click)value encoder to enter this page:
Edit 1 – Transpose: Transposes the entire sequence in semi tones in real time. This can also be
done from a midi keyboard (explained later).
Edit 2 – Resolution: Adjusts the sequencer resolution. Choices are: 1/8, 1/16 or 1/32.

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Edit 1 – Tempo: Adjusts the tempo of the sequence, unless sync in the midi section is set to ”ext”.
Edit 2 – Last Step: Sets the number steps the sequencer will run thru. Value can be from 1 to 32.
Encoder – Start Step: Selects at what step the sequencer will start, when you hit the Play/enter
knob, or jumps from another sequence to this one.
Edit 2 – Key transpose: If on, received midi note on’s will transpose the entire sequence in semi
tones in real time.
Encoder – Key trigger: Selectable modes:
-Off: The sequencer are in normal mode. When you hit the Play/Enter
knob, it starts running, and when you hit it again, it stops.
-Gate: When you hit the Play/Enter knob, the sequencer starts running,
but you can’t hear it. A midi note on from an external midi device (on
deMOON’s midi ch) will gate the sequencer, and cause it to output the
track data.
-Rgat: Same as gate, except that every time a midi note on are received,
the sequence will reset to the start step.
-Key: Every time a midi note on are received, the sequencer advance to
the next step, and plays that step, until a note off are received. This
mode ignores the tempo and clock int/ext settings.

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Edit 1 – Note value: Adjusts the note value for the selected step.
Edit 2 – Velocity value: Adjusts the velocity value for the selected step. Value: 0 127. 0: Step off,
1: Hold previous step.
Encoder: Selects step 1 32.
Edit 1 – controller num er: Selects the controller number (01 03) you want the controller track to
put out. 00: Controller track off. After you have selected the controller number, the Play/Enter knob
starts to blink, and you will have to push it, to confirm.
Edit 2 – Value: Adjusts the controller value for the selected step.
Encoder: Selects step 1 32.

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The Note Randomizer page
The note randomizer treats incoming MIDI note on and off's and notes generated by the internal
sequencer (if turned on). When it receives note data, it takes a look at a user adjustable probability
parameter, and randomly decides if it will play that note or not. If it decides to play the note, it will
have a look at a user adjustable random velocity parameter, and if this is higher than zero, it will
randomize the note velocity value with the adjusted amount. This effect is very useful for creating
variations in repeating patterns.
Edit 1 – Pro a ility: At high settings more notes will be passed thru, at lower settings less notes
will be passed thru. At 255 all notes will get thru use this setting if you only wants the velocity to be
randomized. At 0 no notes will get thru.
Edit 2 – Velocity amount: Adjusts how much velocity will be randomized.
Encoder: Turns the note randomizer on and off.

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The Oscillator Pages
The deMOON oscillator waveforms are continuously variable from triangle to saw to square or
from triangle to saw to noise. The wave shaping can be modulated from all sources, including the
oscillator itself. All waveforms can be pulsewidth and pitch modulated. The noise waveform can be
pitched or unpitched. Unison mode with detune are availible. The oscillator section has it's own two
LFO's and one envelope. The LFO waveforms are continuously variable from triangle to saw to
square to pulse. The LFO's can be both wave and rate modulated.
On the output of each oscillator are an amplifier. This amplifier is always controlled by the
oscillator envelope, so the oscillator envelope always controls the rise and fall of the output.
Edit 1 – Oscillator wave shape: Value 0 to 255, 0: triangle, 128: saw, 255: Square. If noise (on
oscillator page 5) are any other value than off, 255 will be: noise instead of square.
Edit 2 – Oscillator wave shape modulation: Value –128 to +127. A negative value inverts the
modulator.
Encoder - Oscillator wave shape modulation source: Value: lfo1, lfo2, env(elope), velo(city),
osc(illator), ctr1, ctr2, ctr3.

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Encoder – Wave shape modulation level source: Selects a source, that modulates the level of the
wave shape modulation. Choices are: manu(al) – nothing modulates the modulation level, lfo1, lfo2,
env(elope), velo(city), osc(illator), ctr1, ctr2.
Edit 1 – Waveform pulse width: Value 0 to 255.
Edit 2 – Pulse width modulation: Value –128 to +127. A negative value inverts the modulator.
Encoder – Pulse width modulation source: Value: lfo1, lfo2, env(elope), velo(city), osc(illator),
ctr1, ctr2, ctr3.
Encoder – Pulse width modulation level source: Selects a source, that modulates the level of the
pulse width modulation. Choices are: manu(al) – nothing modulates the modulation level, lfo1, lfo2,
env(elope), velo(city), osc(illator), ctr1, ctr2.

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Edit 1 – tune: Tunes the oscillatots in semitone steps.
Edit 2 – Bend: Adjusts how much incoming midi pitch bend messages will affect the oscillator
pitch. From 0 to 255 (about 12 semitones).
Encoder – Noise: Off: The waveshape parameter on oscillator page 1 will morph between triangle
saw square. On: The waveshape parameter on oscillator page 1 will morph between triangle saw
noise. Pitc: The waveshape parameter on oscillator page 1 will morph between triangle saw pitched
noise.
Edit 1 – Fine tune/unison detune: If key mode: poly or mono it fine tunes the oscillators. If key
mode: unison this parameter adjusts the unison detune.
Edit 2 – Pitch modulation: Value –128 to +127. A negative value inverts the modulator.
Encoder – Pitch modulation source: Value: lfo1, lfo2, env(elope), velo(city), osc(illator), ctr1,
ctr2, ctr3.

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Encoder – Pitch modulation level source: Selects a source, that modulates the level of the pitch
modulation. Choices are: manu(al) – nothing modulates the modulation level, lfo1, lfo2, env(elope),
velo(city), osc(illator), ctr1, ctr2.
Edit 1: Oscillator output envelope attack time.
Edit 2: Oscillator output envelope decay time.
Encoder: Oscillator output envelope velocity on/off.
Edit 1: Oscillator output envelope sustain level.
Edit 2: Oscillator output envelope release time.
Encoder: Oscillators keyboard mode. Choices are: Mono, Poly, Unison.