[instrument] squadrone 1.0

A new drone project I’m working on. I made this one for Menstrual Synthdrone of Yogyakarta, Indonesia.

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[performance] Pengolah Sinyal, presentation by Lintang Radittya

Lintang Radittya - Kenalirangkaipakai performing his Javanese Modular, along with visual from Budi Prakosa - Manticore

In April, I’m helping out my friend Lintang Radittya – Kenalirangkaipakai for his presentation on Javanese Modular, a modular synthesizer that he build. The presentation called Pengolah Sinyal, also presenting a collaboration of Lintang with several artists including myself. The event took place in Kedai Kebun Forum on 25 April 2015.

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[module | tutorial] squaresynth

Squaresynth is a module of a costumized simple synthesizer based on quad oscillator on my earlier post here. It uses the same chip, 4093 and modified it as a touch/moist sensor. I developed Squaresynth for workshop purpose, to invite the participants learning the basic electronics through introductions of electronics logis such as oscillator, introduction in reading schematics, and also introduction on electronic components. The demo showed how it sound above. Documentation, schematic, PCB  design bellow.

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Hex Oscillator using 40106 [tutorial]

As we can see in Quad Oscillator using 4093, combining some oscillators is quite fun. It gives layers on our sounds and gives a sense of thickness on it. Besides Nand-Gate, we can also uses Schmitt-trigger (inverter) as oscillators using the same (more or less) logic. One of the most popular and easy to found chips out there is the 40106 hex-schmitt triggers which means it contain 6 inverters that each one of them can be easily turn as oscillators. There’s loads and loads of tutorials using these chip, I followed the flux monkey tutorials and modify it bellow. Check out the video to hear how it sound above. :D

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Quad Oscillator using 4093 [tutorial]

After SITS oscillator, let’s try making combining some oscillators into one sound output. There’s many ways for us to build a lo-fi instruments from cheap electronics part that we can easily find in the nearest electronic store on our town. For an example is the Quad 2-input NAND gate CD4093 (Integrated Circuit / IC) which is only about Rp. 2000,-. Like the name, this IC have 4 nand gate which each of the gate can be easily transform as an oscillator. The oscillator will produce square wave sound as Nandgate produce binary signals as the output. There are many tutorials about using this IC, my personal favorite is micro-noise from Swiss Mechatronic Art Society (SGMK) and this simple 4 block Quad Oscillator from Flux monkey which I highly recommend for those of you would like to learn basic understanding on oscillators. In this post, I’m sharing the Quad osc that I modified from flux monkey along with schematics, PCB layout and print in EagleCAD files. Check the video above to see how it sounds. :)

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