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Noise Engineering
Loquelic Iteritas Percido
Overview
Type
VCO/ Voice
Size
20HP Eurorack
Depth
1 Inch
Power
2x8 Eurorack
+12 mA 150 / 80
-12 mA
5
+5 mA
0 / 90 (optional)
Loquelic Iteritas Percido is an extension of the original Loquelic Iteritas.
Like Loquelic Iteritas, it is a digital VCO with interpretations of three
classic synthesis algorithms involving dual pitch control parameterized by
four tone controls. LIP adds an envelope that can be shaped and routed to
pitches and tone controls, making it into a free-standing voice.
1
Complex Digital Voice
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Table of Contents
Related Manuals for Noise Engineering Loquelic Iteritas Percido
Summary of Contents for Noise Engineering Loquelic Iteritas Percido
- Page 1 -12 mA +5 mA 0 / 90 (optional) Loquelic Iteritas Percido is an extension of the original Loquelic Iteritas. Like Loquelic Iteritas, it is a digital VCO with interpretations of three classic synthesis algorithms involving dual pitch control parameterized by four tone controls.
- Page 2 Loquelic Iteritas Percido Complex Digital Voice Patch Tutorial e easiest way to get to know Loquelic Iteritas Percido is to set the mode to Free, connect the output to your mixer, and start twiddling the knobs and listen. A good next step is to hook any LFO up to any of the four tone control inputs (Morph, Fold, Modulate, Damp).
- Page 3 Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Interface Pitch A/B e pitch of each oscillator can be controlled by pitch encoders. Tap encoders to alternate between coarse and ne tuning. e 1v/8va input serves as an offset . e pitch inputs are cross normaled.
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Page 4: Interface Mode
Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Interface: Mode Trig In Trigger mode, LIP expects a trigger input to start the envelope. LIP triggers on the rising edge and expects a voltage of about 3v. Loop In loop mode, the envelope will continually regenerate. A trigger in will hard reset it on the rising edge;... - Page 5 Noise Engineering Loquelic Iteritas Percido Complex Digital Voice : Envelope Interface Shape controls the attack and decay of the envelope. All the way CCW, the envelope is all decay; all the way CW, attack dominates. Turning the knob transitions between these two extremes gradually.
- Page 6 Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Interface Envelope Controls six attenuverters that route envelope to pitches and parameters. Positioned at 12:00, the envelope is off and does not route to a parameter. Fully CCW results in an inverted envelope send. Fully CW yields full positive send.
- Page 7 Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Interface: Algo VO As in Loquelic Iteritas, the VO algorithm is roughly based off of the VOSIM algorithm discussed in Curtis Roads’s epic Microsounds. is algorithm amplitude modulates a carrier by an exponential to create a complex harmonic structure.
- Page 8 Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Interface: Algo SS Algorithm SS is a highly modi ed version of summation synthesis originally developed by James Moorer. e premise comes from a simple mathematical equality between an in nite harmonic series and a relatively easy- to-compute expression: ∞...
- Page 9 Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Interface: Algo PM e PM algorithm is a naive time-domain two-oscillator phase-modulation implementation that combines both oscillators with amplitude modulation. Controls MORPH - changes the waveform of both oscillators DAMP - blends between oscillator A and B through their product (AM) MOD - phase modulates the oscillators by each other FOLD - sets the wave-fold threshold on the final wave folder...
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Page 10: Voltage Supply
Voltage Supply Loquelic Iteritas Percido can run its processor on the 5V eurorack power rail to reduce noise and load on the 12V bus. Gently push the switch tab in the... -
Page 11: Sample Rate
Loquelic Iteritas Percido Complex Digital Voice Sample Rate Loquelic Iteritas/Loquelic Iteritas Percido use a unique multisampling technique to make aliasing more musical. By choosing a particular sample rate for a waveform that has a harmonic structure (all overtones are integer multiples of the fundamental) the alias power can be moved into frequencies that are also multiples of the fundamental and therefore more musical. -
Page 12: Design Notes
Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Design Notes e original LI was just a simple implementation based on VOSIM but I soon realized I could pack a lot more punch in this form factor and found two additional algorithms. Loquelic Iteritas was designed to be a functional oscillator for sound designers as well as for musicians. -
Page 13: Special Thanks
Noise Engineering Loquelic Iteritas Percido Complex Digital Voice Special Thanks Shawn Jimmerson Cyrus Makarechian & Black Line William Mathewson Mickey Bakas Tyler Thompson Alex Anderson Derrick Baseck Anthony Baldino References Jolley, Leonard Benjamin William, ed. Summation of series. Courier Corporation, 2012.