On this first class on the unit Expanded Studio Practice for 21st Century Sound Artist, we’ve been experimenting with a kind of “noise machine” which consists on a speaker drive connected to a 9v battery. The battery polarity make the speaker to move forward or backwards depending on the voltage orientation and connected with alligator clips we can activate the circuit every time we put together the two ends of the wires.
Then we have found other elements like clips, screws, chains and other metallic or plastics noisy objects around the studio and tried different setups around the screen of the speaker. When activating the circuit repeatedly these objects kind of “jump” in various directions making a wide variety of noises and also creating a feedback where the whole system shakes and can’t stop activating the circuit by itself again and again. Definitely a very special technique and an interesting experiment.