Format: Eurorack
Width: 30HP
Depth: 25mm
Current: 200mA @ + 12V, 60mA @ -12V
Oneiroi is a live performance-oriented, multi-functional, experimental digital synthesizer based on Rebel Technology's OWL platform. Focuses on ambient pads and drone-like soundscapes.
full stereo signal path,3 oscillators(two used exclusively),4 effectsAndルーパーEquipped with: It also has a modulation source and randomizer.
Other features include:
The main components of Oneiroi can be categorized into two: sources and effects.
sound source
The Sine Oscillator and SuperSaw Wavetable Combo share a pitch control, but have separate volume controls. You can also send external inputs directly to effects when recording resampled output.
effect
These units are connected in series in the order shown above, but the filter is the only one whose position can be changed and can be placed anywhere in the effects chain. Each fader controls the amount Dry/Wet of a particular effect in the signal path.
This button is used to access secondary parameters identified on the panel by labels with a white background. There are two ways to use the shift button:
When the shift button light is on, labels with a white background take precedence. Parameters with only one label ignore this button.
When the shift button is turned off, changes to secondary parameters are saved and automatically recalled on the next power cycle. Audio pauses momentarily while saving
This button is used to access modulation mapping (red light) or CV mapping (green light). If the modulation and CV mapping is changed, the settings will be saved and automatically recalled on the next power cycle when the Mod Amount/CV Amount button is turned off. Audio pauses momentarily while saving
The SYNC IN input is used to synchronize Oneiroi with an external source. If no external source is connected, the module uses an internal clock frequency of approximately 0.2 Hz derived from the looper buffer. The SYNC LED will light up accordingly. Synchronization, both internal and external, is used for:
Oneiroi has an external stereo input. There is a switch that allows you to change the gain depending on the type of source you connect. The top position provides maximum gain and is suitable for connecting high impedance sources (such as contact microphones). The middle position is ideal for line level sources, and the bottom position is suitable for connecting the outputs of other Eurorack modules. The input fader controls the input level sent directly to the effects chain.
The looper is used to record and play approximately 5 seconds of audio from the stereo input (PRE) or audio sent to the output of the module (POST). Depends on the position of the PRE/POST switch.
The bicolor LED monitors the signal level coming from the stereo input when the PRE/POST switch is set to PRE, and the signal level sent to the output when set to POST. The LED will turn red when the signal clips.
The VARISPEED knob controls direction and playback speed, varying from 2x in reverse to 2x in forward. The looper will stop when the VARISPEED knob is at the 12 o'clock position. There are virtual detents at the -1x, 0, and 1x positions. The LENGTH knob changes the size of the loop and has an exponential curve, varying from about 0ms at 8% to full length at 100%. The START knob allows you to select the starting point of the loop.
At minimum loop length, this unitOscillatorThe notes are C1 at ±3x, C0.5 at ±2x, and C2 at ±4x.
When a trigger is received on SYNC IN, the looper will restart from the point specified on START.
Recording can be enabled/disabled using the RECORD button or the RECORD input. The button's LED will light up accordingly. There are two ways to operate the RECORD button:
The RECORD input acts as a gate, turning on recording during periods of high signal. When the looper is recording, the RECORD button will flash if you use the SHIFT or MOD/CV buttons.
The buffer is pre-filled with white noise by default, so you can use the looper channel without recording anything.
The contents of the buffer can be cleared by holding down the SHIFT button and pressing the RECORD button.
SOS (Sound on Sound, the amount of previous material retained during recording) can be set by holding down the SHIFT button and turning the START knob. At 0% old material is always replaced, in the middle it slowly fades out, and at 100% it never fades out. During recording, SOS is processed through a dedicated DJ-style filter, and the filter response can be changed by holding down the SHIFT button and turning the LENGTH knob: at 12 o'clock no filter is applied, clockwise it applies HPF, In counterclockwise direction, LPF is applied.
The module offers three stereo oscillators: a simple sine wave, a supersaw inspired by the Roland JP-3, and a wavetable. The sine oscillator can be used alone, but only one of the other two can be used, selected with a switch. Depending on the oscillator selected, the DETUNE knob controls the detuning of the SuperSaw's 8000 sawtooth waves or selects one of 2 wavetables dynamically extracted from the looper buffer.
The full pitch range of the oscillator is 8 octaves, from C0 to C7. The PITCH control has a range of 6 semitones centered on C. The current octave can be selected by holding down the SHIFT button and turning the PITCH knob. The v/oct input is common to all three oscillators and is added to the PITCH knob, tracking 3 octaves from 0 volts to 10 volts. Frequencies outside the supported range will be clipped.
By holding down the SHIFT button and turning the DETUNE knob, you can change the unison of the oscillators: the frequency of one sine channel and the frequencies of the supersaw and wavetable oscillators are lowered by one octave at 1% and raised by one octave at 0%. (default 1%, unison).
This unit is a 2-pole multimode filter that can be switched to lowpass, bandpass, highpass filtering or comb filtering. The type can be selected by holding down the SHIFT button and turning the CUTOFF knob. The CUTOFF knob controls the filter's cutoff frequency (approximately 10Hz to 22kHz) when the unit is used as a multimode filter, and the notch position when used as a comb filter.
A feature of this unit is that it is activated when the RESONANCE knob is above 75%.chaotic noise generatorand its output is summed with the input and filtered. Noise is heard even if no input is provided.
The filter can be placed in one of four possible positions in the effects chain and can be changed by holding down the SHIFT button and turning the RESO knob:
The resonator is based on three different stereo comb filters tuned to relevant frequency bands. Turning the TUNE knob changes the frequency of the instances by different ratios. The FEEDBACK knob creates a sustained resonance, self-oscillating at 3%. By holding down the SHIFT button and turning the TUNE knob, you can make the resonance more dissonant (default 100%).
This unit is based on a 10-tap stereo ping pong delay with a time range of 4ms to 2 seconds using the DENSITY knob. The REPEATS knob allows you to repeat the delayed sound from once at 0% to infinitely at 1%.
When receiving a clock on SYNC IN, the DENSITY knob becomes a divider/multiplier. By holding down the SHIFT button and turning the DENSITY knob, you can process the echo through a DJ-style filter: 12 o'clock applies no filter, clockwise applies HPF, counterclockwise applies LPF.
The ambience unit is loosely based on a Schrader reverb, with macro controls for size, filtering, and direction via the SPACETIME knob. The smallest size and lightest tone can be obtained at 50%, the largest size and darkest tone can be obtained at 0% or 100%. Values less than 50% invert the input signal. The DECAY knob controls the time it takes for the tail to fade out.
This unit is equipped with an autopanner synchronized to an external sync input or the frequency of the looper cycle. By holding down the SHIFT button and turning the SPACETIME knob, you can change the amount and frequency divide/multiply at the same time: 0% is no autopan, 100% is full autopan at 8 times the reference frequency, and There are 16 different ratios (default is 50%).
Oneiroi has an internal modulation source. Modulation type can be selected by holding down the SHIFT button and turning the SPEED knob (type changes smoothly)
There are seven modulation types to choose from:
The amount of modulation can be changed with the MOD LEVEL knob. This control is the "modulation master" that overrides all modulation mappings.
The envelope follower is placed just before the looper and follows the module's input or output depending on the position of the PRE/POST switch.
The SPEED knob can change the speed from 0.1 times the reference frequency to approximately 100 times the reference frequency, depending on whether the module is externally synchronized or not. If not synchronized, the center frequency is calculated based on the length of the looper buffer and is approximately 0.2Hz. Therefore, SPEED varies from 0.02Hz to almost 20Hz. The same is true for the synchronized case, but in this case the reference frequency is that of the received clock.
For envelope follower-based modulation, the SPEED knob controls the slope of the envelope curve, with 0% slow and 100% fast.
Modulation is sent to the filter's CUTOFF and the resonator's TUNE by default, but each knob (except for modulation itself) has an associated control that allows you to specify the amount of modulation that the relative parameter receives. Controls are accessed by entering modulation mapping mode (MOD AMT button) and moving the knob of the parameter you want to receive modulation.
Mappings are automatically saved between power cycles. You can reset to the default state by pressing the RECORD and RANDOM buttons simultaneously while in modulation mapping mode.
The randomizer works differently depending on the position of the two switches.
The TARGET switch can select which units will be randomized:
The AMOUNT switch allows you to specify the amount of variation applied to the current value of the target parameter:
The pitch of the oscillator is randomized in semitone steps. Faders and super saw/wavetable selectors are not subject to randomization. It also excludes secondary parameters, modulation mapping, and CV mapping accessed with the SHIFT button.
To randomize, select a target and amount and press the RANDOM button or send a trigger to the RANDOM input.
You can undo and redo randomization by holding down the SHIFT button and pressing the RANDOM button. At any time, parameters can be reset to their actual control positions by holding down the SHIFT button and pressing the RECORD and RANDOM buttons simultaneously.
As with modulation, with CV, each knob has an associated control that allows you to specify the strength of the CV it receives. Additionally, the effect's four CVs (which are assigned to the primary parameters by default) can be assigned to secondary parameters as well. You can access it by entering CV mapping mode (SHIFT button + CV AMT button) and moving the knob of the parameter you want to receive CV from.
CV routing can be reset to default by pressing the RECORD and RANDOM buttons simultaneously while in CV mapping mode.
To enter boot configuration mode, press and hold the RECORD and RANDOM buttons while powering up the module and release when the two catch-up LEDs illuminate. The MOD AMT button will illuminate green to indicate you are on the launch settings page. On the launch settings page, you can change three things:
Press the SHIFT button to toggle this. When the LED is on, it is in catch mode, and when it is off, it is in jump mode.
Press the RECORD button to toggle this. The RANDOM button does the same thing for the CV amount.
During the startup settings page, you can use the RANDOM button to switch the CV amount between attenuator mode (LED on) and attenuator mode (LED off)
