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Summary of Contents for Instruo Neoni
- Page 1 neóni Through-Zero Oscillator User Manual...
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Page 2: Table Of Contents
Contents Description / Features Patch Examples - East Coast Synth Voice - Traditional FM Installation / Specifications - Through-Zero FM - Sawtooth Polarity Switch - Through-Zero Oragami Overview - Feedback Seagulls - Chug-Chug Waveforms Frequency Modulation & Waveshaping Oscillator Syncronization Control Voltage Frequency/Pitch... - Page 3 Description FM with tonality! At its core, the Instruō neóni is a traditional analogue oscillator. What sets it apart from other oscillators in the Instruō product line is it’s Through-Zero FM functionality with AC and DC coupled operation. Add that to its precision soft sync and directional hard sync modes, nonlinear wavefolding, internal modulation routings, and you end up with the most tonal FM sounds imaginable.
- Page 4 Installation 1. Confirm that the Eurorack synthesizer system is powered off. 2. Locate 12 HP of space in your Eurorack synthesizer case. 3. Connect the 10 pin side of the IDC power cable to the 2x5 pin header on the back of the module, confirming that the red stripe on the power cable is connected to -12V.
- Page 5 neóni | ni: Uni | verb (engineering) to adjust an instrument to zero, a point on a scale or instrument from which a positive or negative quantity is reckoned COARSE TRAD T. Z. – 1V/OCT FINE SYNC WAVEFOLD neóni 1. Square Output 9.
- Page 6 Waveforms Square Output: Square waveform output. Sawtooth Output: Sawtooth waveform output. Split Sawtooth: Controls the waveshaping applied to the Sawtooth Output by offsetting from the split at the centre of the wavelength • When the knob is fully anticlockwise, the sawtooth waveform is at its default phase, frequency, and amplitude.
- Page 7 Wavefold: Controls the amount of wavefolding applied to the core triangle waveform.
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Page 8: Frequency Modulation & Waveshaping
Frequency Modulation & Waveshaping FM Input: A bipolar control voltage input for the frequency parameter. • Control voltage is scaled by the FM Attenuator and summed with the values set by the Coarse Fine knobs. • FM Input is linear. •... - Page 9 • If set to AC coupled operation, frequency modulation can be more tonal in T.Z. configuration. Any DC offset within the signal connected to the FM Input is filtered out. • If set to DC coupled operation, frequency modulation can be more clangorous in T.Z.
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Page 10: Oscillator Syncronization
Oscillator Synchronization Hard Sync Input: All waveform cycles reset on a hard rising-edge signal. Hard Sync Direction: Controls the behavior of the Hard Sync Input. When triggered, the core triangle charge will immediately reset to 0V. Low Frequency Audio Rate If the toggle is in the centre position, the new cycle’s polarity is dictated by the charge direction at the time of sync. - Page 11 Low Frequency Audio Rate If the toggle is in the down position the core triangle charge will always reset to a negative charge from 0V regardless of the ramp direction at the time of synchronisation. Soft Sync Input: neóni’s core triangle changes its charge direction on a hard rising edge signal.
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Page 12: Control Voltage
Control Voltage Signal Router Toggle: Routes the signal present at the FM Input different parts of the circuit. Incoming signals will always modulate the frequency of neóni (when unattenuated), regardless of the toggle position. -2.5 -2.5 SYNC • If the toggle is in the left position, the positive portion of the incoming signal is clipped and then routed to the Hard Sync Input. - Page 13 CV Destination Switch: Sets the modulation destination for the CV Input to either wavefold amount or split sawtooth waveshaping. CV Input: CV Input is a bipolar control voltage input that can control either the wavefold amount or the split sawtooth waveshaping based on the position of the CV Destination Switch.
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Page 14: Frequency/Pitch
Frequency/Pitch Coarse: Coarse knob controls the fundamental frequency of the oscillator. It determines the pitch of all waveforms. • Turning the knob anticlockwise will decrease the frequency. • Turning the knob clockwise will increase the frequency. Fine: Fine knob is used for minute control of the oscillator’s fundamental frequency and is relative to the frequency value set by the Coarse knob. -
Page 15: Patch Examples
Patch Examples East Coast Synth Voice: Summary: The sequencer or keyboard sends voltages to neóni while simultaneously triggering the envelope generator. The CV output of the envelope generator opens a filter and VCA, allowing neóni to pass through. More traditional East Coast patches would incorporate separate envelope generators for the filter and VCA. - Page 16 • Set the cutoff frequency of the filter to a desired position. • Set the resonance of the filter to a desired position. • Set the gain of the VCA to its minimum position if applicable. Control Path: • Connect the 1V/Oct output of a sequencer or keyboard to the 1V/Oct Input of neóni.
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Page 17: Traditional Fm
Traditional FM: Summary: A secondary oscillator modulates the frequency of neóni In this setup, neóni is the carrier and the secondary oscillator is the modulator. Sequencing or keytracking neóni will change the pitch of the sound. Experiment with different carrier:modulator ratios by changing the frequencies of both oscillators. - Page 18 Control Path: • Set the Signal Router Toggle to its centre position, so that internal signal routing is disabled. • Connect an audio rate sine waveform to the FM Input of neóni and set the FM Attenuator fully clockwise.
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Page 19: Through-Zero Fm
Through-Zero FM: Summary: A secondary oscillator modulates the frequency of neóni. In this setup, neóni is the carrier and the secondary oscillator is the modulator. Sequencing or key-tracking the modulator will change the pitch of the sound. Experiment with different carrier:modulator ratios by changing the frequencies of both oscillators. - Page 20 Control Path: • Set the Signal Router Toggle to its centre position, so that internal signal routing is disabled. • Connect an audio rate sine waveform to the FM Input of neóni and set the FM Attenuator fully clockwise.
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Page 21: Sawtooth Polarity Switch
Sawtooth Polarity Switch: Summary: If the sawtooth waveform is used, connecting negative CV to the FM Input will change the polarity of the sawtooth waveform, regardless of the FM Attenuator’s knob position. A threshold comparator selects the polarity of the sawtooth wave. The polarity can be switched at audio rate for hard sync-style effects. -
Page 22: Through-Zero Oragami
Through-Zero Oragami: Summary: The modulator within the FM operator is connected to both the FM Input and the wavefold parameter. Timbre is determined by the pitch and wavefold parameters as well as the FM Attenuator and CV Attenuator. Gate Signal 1V/Oct Signal Audio Rate Sine Wave... - Page 23 • Set the CV Destination Switch to its down position, so that incoming signal at the FM Input will modulate the wavefold amount. • Connect and audio rate sine waveform of a secondary oscillator to the FM Input and set the FM Attenuator to around 2:00. •...
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Page 24: Feedback Seagulls
Feedback Seagulls: Summary: The Sine Output feeds back into the wavefolder amount parameter and the Wavefold Output feeds back into the FM Input. Moving the Coarse knob and the Wavefold fader will affect the “bird activity.” Output Audio Path: • Set the LFO Toggle to its up position, so that neóni oscillates at audio rate. - Page 25 Control Path: • Set the AC/DC Coupled Toggle to its left position, so that AC coupled FM operation is selected. • Set the CV Destination Switch to its down position, so that incoming signal at the CV Input will modulate the wavefold amount. •...
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Page 26: Chug-Chug
Chug-Chug: Summary: The sawtooth and wavefolded waveforms of neóni are mixed in lìon. The output of lìon as well as a stepped triangle waveform from Cš-L are further mixed via the input and inverting input of I-ō47. The low pass output of I-ō47 is sent through the bottom channel of vincâ. The output of vincâ... - Page 27 Audio Path: • Set the LFO Toggle of neóni to its up position, so that it oscillates at audio rate. • Set the Trad/T.Z. Switch of neóni to its down position, so that through-zero FM operation is selected. • Set the Hard Sync Toggle of neóni to its centre position, so that hard synchronization happens on every up and down charge direction.
- Page 28 Control Path: • Set the AC/DC Coupled Toggle to its left position, so that AC coupled FM operation is selected. • Set the Signal Router Toggle to its left position, so that the incoming signal at the FM Input is clipped and routed to the Hard Sync Input. •...
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