Synth modules

Notes: Module A-149-4 generates four triggered random voltages which meet the criteria choosen by several controls.

Manual controls for the criteria selection:
Octave range (manual control "Oct."): this parameter defines how many octaves are covered by the random voltages (0 ... +5V, with "Oct." control fully CCW only 0V are generated)
Grid (6 illuminated radio buttons): this parameter defines the grid of the random voltages:
Octaves (Oct)
Octaves + Quin (Quint)
Chords (Major or Minor chords)
Scale (Major or Minor scale)
Semitones
continuous (i.e. stepless)
Minor / Major (2 illuminated radio buttons): this parameter defines in case of chords or scales if they are minor or major. For all other grids this parameter has no meaning
Sixth / Seventh (2 illuminated separate buttons): these parameters defines if the sixth or seventh is added. Valid only if Oct, Quint, Chord or Scale is chosen as grid.

The output voltages follow the 1V/octave standard (i.e. 1/12 V voltage differenc per semitone) with exception of the Continuous mode. The voltages in this mode are totally random and do not follow the 1V/oct standard (i.e. not a multiple of 1/12V).
The generation of a new random voltage at the output (CV Out 1...4) is triggered by the rising edge of the signal applied to the corresponding trigger input (Trig. In 1...4). The trigger inputs are normalled top down. The minimum trigger level is +2.5V, the maximum level is +12V.

Applications:
random polyphonic structures (in combination with the polyphonic modules A-111-4, A-105-4, A-132-8, A-141-4 and e.g. A-157 as trigger source and A-173-1/2 for transposition of the polyphonic structures)
any application that requires several random voltages
four digital pseudo noise signals when higher trigger frequencies are used

Width: 4 HP / 20.0 mm
Depth: 50 mm (measured from the rear side of the front panel)
Current: +50A (+12V) / -10mA (-12V)

Notes: CV Random is a random CV generator with 4 types of randomness and a triggerable sample-and-hold function.

Sliders allow you to set the internal clock tempo (RATE), shape the probability of triggering (PROB), blend old with new values (RND) and set the shape of all four random outputs (SHAPE).

4 different sliders

RATE

Sets the tempo of the internal clock. The CV input below the slider adjusts the clock rate, with 1V/oct calibration when the CV attenuverter is 100%. Upon each clock trigger, the RATE slider light blinks, and there is a chance for the internal random source to generate a new value.

PROB

This probability is set by the PROB slider, and if a new value was generated, the PROB slider light blinks and a pulse is emitted from the TRIG output.

RND

When the internal random source generates a new value, it mixes the previous value with a random value, with an amount specified by the RND slider.

SHAPE

The SHAPE slider sets the shape of all four random outputs. At its lowest position (0%), all outputs immediately jump to the new random value (the target value) when the clock is triggered.

At non-zero positions, the outputs interpolate between the previous and the target value, using a different behaviour for each output.

Internal random clock source

Whenever the clock activates, the RATE slider's light flashes. At the same time, there's a chance that the internal random source will create a new value, depending on the PROB slider's setting.

If it does create a new value, the PROB slider's light flashes too, and a pulse comes out of the TRIG output.

External IN & TRIG inputs

If the TRIG input is patched, the RATE slider is ignored, and the internal clock is only triggered when an external trigger is received. The PROB slider is used to filter this trigger by applying some probability.

Self-modulation

Thanks to a switch in the back of the module, you can normalize the LIN output to the 4 CV inputs and adjust the amount of modulation for each parameter with the attenuverters.

This adds another layer of randomness to your results, enabling more dynamic and unpredictable outcomes.

SHAPE Outputs

The STEP output jumps to the new value in one step at 0% SHAPE, and divides the transition into 16 steps at 100% SHAPE.

The LIN output immediately reaches the new value at 0% SHAPE, and takes the whole clock cycle to do so at 100% SHAPE, staying constant in between.

The EXP output shifts exponentially, becoming linear at 100% SHAPE, with its pace adjusted by the SHAPE slider.

The SMTH output transitions smoothly, with the speed controlled by the SHAPE setting, holding at the target until the cycle ends.

Specifications

Dimensions 10HP - 50×128,5mm
Current 63 mA +12V / 11 mA -12V / 0 mA +5V
Input & Output Signals +/-10V
Impedance Input 10k - Output 10k
Materials PCB and Panel - FR4 1,6mm
Depth 40mm including connectors (Skiff friendly)

Notes: Really nice approach to sequencing from Omni-Tone. The Melodi generates 'semi-random' patterns based on tunable parameters and probabilities. Dial in combinations of scales, pitch range, tempos and so on to create unique melodies.

Supplier's Notes:
Melodi generates sequences based on the mood you set so you can create the sound you're searching for- it can be tweaked to create anything from a powerful bassline to a sparkly melody.

Ships with version 2 of firmware

Improvements: Skip, tie, length are now LIVE knobs. Added a ping-pong trend line and a blues scale.

GENERATE

1. NEW - will prompt Melodi to generate a new sequence.
2. TRIGGER IN - accepts a trigger to prompt Melodi to generate a new sequence.

CYCLE

1. ON/OFF - determines if the sequence will loop or require retriggering.
2. TRIGGER - button and jack trigger the sequence to restart at the beginning.

TUNE

* While adjusting tunable parameters, the light bar will reflect the current selection. For continuous parameters the light bar shows amount from 0-100%, for quantized parameters the light bar shows steps.
1. SKIP (continuous) - sets the probability that a note will be skipped in a sequence.
2. PLUCK (continuous) - sets the length of the gate, from short plucks to gliding between notes (portamento).
3. TIE (continuous)- sets the probability that a note gets tied to the next (effectively making the note last two clock cycles).
4. TREND (continuous) - sets whether the sequence trends upwards or downwards in pitch.
5. SCALE (quantized) - select the quantization of the notes used in the sequence. Choose from perfect notes, pentatonic scale, diatonic scale, chromatic scale and completely unquantized.
6. RANGE (continuous) - sets the range of notes from 1 to 4 octaves (unquantized)
7. LENGTH (quantized) - select the number of notes to play in a sequence (from 1-16, or infinitely generating at the max position).
8. SPEED (continuous) - sets the tempo of the internal clock, between 20 and 2000 BPM.

OUT
1. GATE - outputs the gate of the notes in the sequence.
2. PITCH - outputs the pitch (in V/OCT) of the sequence.

CLOCK

1. SELECT - Melodi will generate internal clock signal if select switch is up, and will use external clock signal when down
2. IN - connect external clock signal
3. OUT - output clock signal

Technical specs:

- Module Size: 3U X 8HP X 25 Mm Deep.
- Current Draw: 85mA @ 12V, 10mA @ -12V.

What's in the box:

- Ready to use Assembled Module
- Mounting Screws
- Power Cable
- User Manual

Notes: You must absolutely own Skippy to use this module; it cannot operate independently.

The firmware version 2.21 or higher must be installed on your Skippy.

Additional features:
1 CV gate or trig input for Reset
1 CV gate or trig input for Play/stop
1 Reset button
1 Play/stop button
1 Live mode on/off button
16 function potentiometers distributed over 4 rows: you can freely choose a function (BPM, STEP, BEGIN, END, GAUSS, GATE, PROBA, CHAOS, SWING, WAY) for each row.
1 row of 4 algorithm potentiometers: you can freely choose an algorithm (Euclid, Jazzy, PolyR, Tiles) for each potentiometer.
The Save function takes into account the settings used in Skippy Live.
The selected parameters for Skippy Live are automatically saved.

Technical specifications:
10 HP
Depth: 25 mm
Power consumption:
+12 V 0 mA
-12 V 0 mA
+5 V 15 mA
Comes with a connector to Skippy and Knurlies.

Notes: Random rhythm generator

Joey is a Eurorack module that generates random gate sequences. It is the offspring of Skippy (Kaona's polyrhythmic sequencer), without simply copying it: it's a very straightforward module that provides unexpected yet controllable sequences.

It offers three main modes:

Random

For random triggers controlled by an internal speed or an external clock.

Fractal

A unique algorithm sprinkled with 5% chaos, creating evolving and surprising patterns.

Euclid

Generates four different Euclidean patterns for complex and evolving rhythms.

Each mode has three adjustable parameters set via a clickable encoder: speed, a mode-specific parameter (probability, fractal root, or Euclidean pattern), and gate length. An external gate input can take over to synchronize speed. A PLAY/STOP button instantly suspends or restarts the gates.

Specifications

Width: 6 HP

Power Consumption:
+12 V: 50 mA
-12 V: 0 mA
+5 V: 0 mA

Depth: 28 mm

Supplied with power cable and Knurlies