Category Archives: Blog

Gated and Feedback Oscillators

For Arts+Tech we are creating a series of noise circuits to explore the types of sounds and effects we would like to be in our final noise machine. Using the 4093 or NAND IC chip we are experimenting with gating multiple oscillators (from one chip) signals at particular frequencies thereby setting the tonal range we want to work with. This is helpful to gate out the very high squeeling frequenices that quickly move out of audible range. Another test is with feedback, taking the output from one oscillator and sending this to the input of another this creates very interesting patterns. When we left these drone oscillators playing over a period of time, the effect was of them ‘playing themselves’, with chaos and chance elements occurring …. very exciting!

Polyphonic Experiments and Colour

Our first oscillator circuit of the project was an exploration into polyphony, we used a Hex Schmitt IC Chip to mix down two tones into one output. One tone was determined by an LDR and the second tone was determined by a potentiometre. We experimented with swapping in and out a range of capacitors to alter the tones. We were interested in the listener experiencing and affecting the subtle disonant and sometimes resolving spaces between two tones. One of our ideas for a lioght source (and potential installation idea) is to bath a room in coloured light and listen to the light theremins play thesound of the a changing colour spectrum. Today we tested this out in a lofi manner by playing a spectrum video from a mobile phone directly onto thr LDR, the sound change was slow and disctinct with each colour.

CTM Festival Berlin Research Trip

To kickstart our explorations for the Arts+Tech creative accelerator we journeyed to Berlin for CTM Festival for adventurous music and art; which this year had a specific focus on sound art… perfect for us. It was a chance to gain inspiration by seeing some installations utilising the latest technology attend the research and networking events and generate some interest for our project.

imag0089.jpg

On the trip we took part in speed dating part of the research networking day, pitching our Noise Orchestra project to a range of sound art and gallery curators from aross Europe. We found out about the main sound art networks such as SHAPE, SOCCOS and ENAC and learnt about performance and residency opportunities.

 

imag0095.jpg

Ableton ran a drop in workshop showcasing their new plug ins released in April that work with new physical input objects, real time data and excitingly are compatible with arduino. Check the video here

We visited Musicmakers Hacklab, a week long project led by noise artist Ewa Justka who introduced us to the various electronic projects the participants were creating. It was interesting to see various projects involving the chips and some of the graphical sound techniques we employ for the final performance at HAU2.

imag0080.jpgWe visited Musicmakers Hacklab, a week long project led by noise artist Ewa Justka who introduced us to the various electronic projects the participants were creating. It was interesting to see various projects involving the chips and some of the graphical sound techniques we employ for the final performance at HAU2.

imag0105.jpgEnd of the trip was to see DEEP WEBB Robert Hencke and Christopher Bauder’s kinetic audio visual laser installation at Kraftwerk. AMAZING!!