Lunetta Synthesis: Difference between revisions
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=== Variations === | === Variations and Tips === | ||
==== Intermodulation ==== | |||
Drive 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 | https://hackadaycom.files.wordpress.com/2015/01/40106_sync_osc.png?w=800&h=326 | ||
==== Gentle Sounds ==== | ==== Gentle Sounds ==== | ||
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[[File:File:7414-oscillator-waveform-diagram.png]] | [[File:File:7414-oscillator-waveform-diagram.png]] | ||
==== Starvation ==== | |||
Starve or overdrive the power supply to the chip for unexpected results. | |||
==== Amplification ==== | |||
Use a cheap 3W PAM amplifier module to drive a speaker. Overdrive the powersupply of the PAM with a 9V battery for extra volume (but check for heat). | |||
==General Lunetta Synthesis Links== | ==General Lunetta Synthesis Links== | ||
Revision as of 06:07, 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.
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.
Parts
CD40106 Hex Schmitt. 6 oscillators on a single chip! http://live.partlist.org/331/image/item/open/root/format=big
Variations and Tips
Intermodulation
Drive 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
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
Starvation
Starve or overdrive the power supply to the chip for unexpected results.
Amplification
Use a cheap 3W PAM amplifier module to drive a speaker. Overdrive the powersupply of the PAM with a 9V battery for extra volume (but check for heat).
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)