#module

Noise Reap - Bermuda

This is a simple analog VCO. Its “thing” is that the triangle output gets AC coupled back into the triangle core, thus self-frequency-modulating itself. New harmonic content results as the shape of the core becomes less definable. Since everything derives form the triangle core, all the wave outputs get distorted. The videos below demonstrate this.

Furthermore, the self mod control is sensitive to speed of knob rotation. If swept slowly there is no notable change in pitch. If swept not-slowly, the movement of that control will result is a momentary pitch swing. This can be “played” for effect and adds bellow or fluctuation to the pitch. If self-mod starts to near its maximum position, the VCO will go slightly flat. This can be noticed near the end of the sine video.

 About the sine output. It’s nowhere near a perfect sine, but it’s pretty sine-ish. It is also inverted relative to the phase of the triangle and square outputs. If the sine is mixed with the other waveshapes (through external patching) this serves to cancel out the fundametal frequency in the other waveshapes, and only the harmonics are left. This has a highpass filtering effect and can make useful tones.

 The frequency knob controls a useful audio range of about 10 – 10,000Hz. Through the use of CV that can be pushed to sub and supersonic levels. The circuit is not useful as an LFO, no voltage will result if the VCO is slowed (through high negative CV) to less than about 1Hz.

 The circuit is well compensated against temperature related pitch drift, and has good 1V/oct tracking. Fine tracking adjustment can be done from the front panel via small flathead jewlers/glasses screwdriver. If overtracking turn left, if undertracking turn right. A blue trimpot on the circuit side of the module adjusts the initial frequency set.

Make Noise Rosie

Rosie is an output interfacing module with the added functionalities of FX Loop, Crossfader and Auto-Cue system. It is designed to facilitate live performance on the modular synthesizer by allowing the artist to preview and modify portions of a patch using the Auto-CUE system, while the audience is listening to a different portion of the patch as selected by the crossfader. Additionally it allows for Stereo processing of all sounds via the FX Loop. The Rosie is suitable for headphone monitoring of the modular system and interfacing the modular system to a recording environment. Internal Level Matching and Limiting w/ overload indication makes it easy to connect the modular system in the studio or on stage.

features

  • Master Volume Control for the modular system
  • 1/4" Stereo output connects easily with mixers, audio interfaces, amplifiers, headphones
  • Mini-jack output for use with headphones and more
  • Two Mono Inputs (Channel A and B) w/ LED indication of signal strength
  • Crossfader to select or blend between Channel A and B
  • Mono FX Send with Stereo or Mono Return and Return Level control 
  • Auto-CUE allows for patch preview Maximum artist controlled musical variation, minimum data input 
  • Uses high quality Burr Brown line drivers 
  • Pairs well with the Erbe-Verb

http://www.makenoisemusic.com/modules/rosie