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flight of harmony Infernal Noise Machine Manual

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Summary of Contents for flight of harmony Infernal Noise Machine

  • Page 1 harmony...

  • Page 2: Table Of Contents

    Contents I.N.M. Features Specifications What is it? Controls and Usage INM-Exp Tips Calibration Modulation Waveshaping Thanks 2/24...

  • Page 3: I.n.m. Features

    I.N.M. Features Important Note: This is a noise device. Please mentally append “-ish” to all descriptions. IMP Noise Core: • Controls o Frequency & Range Joysticks   Coarse   Fine à   Fine scaling adjustment, relative to Coarse, at maximum Width Š...
  • Page 4 ± 5V soft-clip limited   Voltage-Controlled Oscillator (VCO): • Variable base frequency o ~0.5Hz to ~140kHZ o Temperature compensated o 1V/oct tracking o CV input: • Frequency Modulation o Selectable modulation source   Noise Signal from Imp   External signal o Variable modulation depth o External signal input o Level control...

  • Page 5: Specifications

    o Ext In   External signal input à   AC-coupled à   Breaking • Outputs o Ext Out   AC-coupled Breaking   Dual Voltage-Controlled Amplifier (VCA), one per channel: • Controls o Level o CV VCA output level CV input attenuator  ...
  • Page 6 o 16-pin (2x8) Doepfer standard eurorack shrouded header o User-selectable + 5V supply   System bus   Onboard regulated supply • Included o Module o 9” 16-pin to 10-pin & 16-pin power cable o (4) M3x1.5x6 mounting screws o (4) nylon washers Functional Features • ...
  • Page 7 varied by the Gain control and the filter’s Center Frequency is varied by the fc control and can also be voltage-controlled. •  The VCF In/Out bypass switches remove the filters from the signal chain to pass the raw modulated VCO signal to the VCA. • ...

  • Page 8: What Is It

    What is it? The Infernal Noise Machine is a sound synthesizer, not a music synthesizer. It was designed towards the creation of noise, sound effects, and for the general field of sound design. Having said that, the INM can create a full range of “musical”...

  • Page 9: Controls And Usage

    You know that part where a manufacturer says their product is new, unique, like nothing you’ve seen before? This is basically that again, but also a clarification that the Infernal Noise Machine does not work like most sound source modules. To be even more clear: This thing will piss you off.
  • Page 10 the Imp, however, is from subsonic to ultrasonic, and accessed in different ways requiring multiple controls for fine-tuning. Domain: The first stage of frequency selection. Domain selects one of eight wide bands of the overall range. Domain One is lowest, Eight is highest (in frequency).
  • Page 11 sometimes 180°, and everything in between. CV Level: Controls the attenuation of the external CV signal. VCO Tune: Tuning control to adjust the frequency of the VCO. Mod Src: Selects which signal is used to modulate the frequency of the VCO.
  • Page 12 VCA section This is the output section. Each of the two signals is sent to a VCA, and the outputs of the two VCA are summed together and sent to the All Out jack. Level: The level control for the VCA. Fully clockwise is maximum ( ± 5V), and fully counter-clockwise is full attenuation.

  • Page 13: Inm-Exp

    INM-Exp The INM-Exp is an additional set of five waveform outputs and three frequency controls for the Infernal Noise Machine. The toggle switch selects how it is controlled: When set to Exp, the LFO output is controlled only by the expansion module and is isolated from the main unit, overriding and ignoring the CV+Mod source from the main INM-E.

  • Page 14: Tips

    Tips •  Take your time. It is easy to get frustrated with the INM. I find the best stuff when I am just noodling around while testing (and end up taking an hour to test one unit because I got lost in the drones or something). I tend to have a harder time when I go in trying to make a cool sound.

  • Page 15: Calibration

    Calibration Note: Scope display settings are how I do them and are provided for those with little experience. Do it however you want if you are familiar with the equipment fig. 4, VCA calibration trimmer potentiometers. Tools required: • Oscilloscope • Small flat-bladed screwdriver Setup: •...

  • Page 16: Vco

    1 Volt Per Octave Note: This is the Infernal Noise Machine, don’t ask about tracking or how many octaves, k? If you want a precision VCO with perfect tracking across eighty octaves, you’re in the wrong place. Tools required: • Small flat-bladed screwdriver •...

  • Page 17: Modulation

    o Set Ext to minimum (full CCW) o Set VCO toggle to 1V/Oct Calibration • Adjust the Tune knob until voltage at the pin marked “CV” in fig. 7 reads 0.00V. • Adjust the BaseF trimmer (fig. 7) until frequency counter reads 800.0 Hz •...

  • Page 18: Waveshaping

    fig. 9, VCO modulation amplifier calibration oscilloscope display. Waveshaping Note: The VCO is a fairly standard ramp oscillator, with the Triangle created from manipulation of the ramp, which leaves some artifacts. The Sine is derived by distortion of the Triangle, so it contains some of these artifacts as well.
  • Page 19 fig. 11, Ramp Bias adjustment display. • Saw — RMPBIAS o Saw is just an inverted ramp, you’ve done enough already.   No, really, ignore any offset variance, it’s fine. • Triangle — TRIBIAS, TRSIADJ o TRIBIAS is identical in function to RMPBIAS. Adjust to correct waveform offset. o TRSIADJ controls the conversion of the ramp into a triangle, adjust this until the display shows an equilateral triangle-ish shape (fig.
  • Page 20 fun screwing around, you may have to go back and forth between SINRND and SINAMP to get the shape right.   You’re not going to get a perfect sine wave, by the way. Noise Machine, remember? fig. 13, SINBIAS trimmer potentiometer adjustment. fig. 14, SINAMP trimmer potentiometer adjustment.
  • Page 21 Procedure: Use the VCO Out jacks to calibrate each waveform in turn. • Square o Sorry, you’re S.O.L. here too. Carry on. • Ramp — LFSLEW, LFHI, LFLO o The ramp is derived from the triangle by the annoyingly fiddly process of inverting and level-shifting the triangle and attempting to get the two images to line up.

  • Page 22: Thanks

    • Sine — LFSINRND, LFSINBIAS, LFSINAMP o Same as for VCO sine on page 19 above   Yes, even the mixed-up labeling, thank you. Thanks Eternal thanks and appreciation to E.T., I.I., and C.L. for all the help in getting this thing going. Every bit of this ordeal was helpful! Extra thanks again to HeWhoWantsJeans for putting up with my autistic ass all these years and supporting me through everything.
  • Page 23 All f(h) products are guaranteed against defects in manufacturing and workmanship for the lifetime of the product. Please contact me via email at: support@flightofharmony.com Stuff Comments, suggestions, complaints to: flight@flightofharmony.com Drawings and designs ©2021 flight of harmony http://www.flightofharmony.com Published: March, 2021 23/24...
  • Page 24 24/24...

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