Difference between revisions of "Noisebridge:Lunetta"

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(Lunetta Oscillator)
(Lunetta Oscillator)
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The Lunetta Oscillator is the heart of Lunetta Synthesis. It's an oscillator based on a Schmitt Inverter.  
 
The Lunetta Oscillator is the heart of Lunetta Synthesis. It's an oscillator based on a Schmitt Inverter.  
  
[[File:Schmitt-osc1.gif]]   [[File:Schmitt.gif]]
+
[[File:Schmitt-osc1.gif]]
 +
[[File:Schmitt.gif]]
  
 
=== Parts ===
 
=== Parts ===
 
CD40106 Hex Schmitt. 6 oscillators on a single chip!
 
CD40106 Hex Schmitt. 6 oscillators on a single chip!
 
 
http://live.partlist.org/331/image/item/open/root/format=big
 
http://live.partlist.org/331/image/item/open/root/format=big
  

Revision as of 13:03, 19 May 2018

Intro

A page dedicated to Lunetta Synthesis, the art of repurposing and perverting digital logic semiconductor chips into sound-producing devices. The techniques of Lunetta Synthesis were pioneered by sculptor and percussionist Stanley Lunetta in the 1970's. In 2014, Noisebridge was honored to host a talk and demonstration by Stanley Lunetta himself. Stanley3.jpgStanley2.jpg

https://www.noisebridge.net/wiki/NoiseHack

This page is a work-in-progress. Feel free to add more info and links, but please try to keep it organized.

General Tips

For visual fun, use LED's wherever a schematic calls for diodes.

Lunetta Oscillator

The Lunetta Oscillator is the heart of Lunetta Synthesis. It's an oscillator based on a Schmitt Inverter.

Schmitt-osc1.gif Schmitt.gif

Parts

CD40106 Hex Schmitt. 6 oscillators on a single chip! http://live.partlist.org/331/image/item/open/root/format=big


Variations

Driving one Schmitt oscillator with another, through a diode, and using a switch as a trigger:

https://hackadaycom.files.wordpress.com/2015/01/40106_sync_osc.png?w=800&h=326

Tips

Gentle Sounds

Most Lunetta syntesizers out there are raucous and chaotic. But sweet, gentle sounds are also possible.

  • Tap the inverter output to obtain a loud, buzzy, digital square wave.
  • Tap the inverter input to obtain a gentle, soft, analog triangular wave. That's the voltage presented by the capacitor as it charges/discharges.

File:File:7414-oscillator-waveform-diagram.png

General Lunetta Synthesis Links

https://strangenessandcharm.wordpress.com/2013/10/29/diy-weird-sound-synthesis-with-cmos/ http://electro-music.com/forum/forum-160.html

Johnyradio (talk) 12:49, 19 May 2018 (UTC)