Thursday 28 August 2008

Electrochemical Synthesiser; (direct audio recording) by Pask Present

Video recorded using direct audio out (rather than microphone and speaker/amp). The sounds are produced by an electrochemical reaction between Aluminium, Copper and Salt water (NaCl), fed through a pre-amp after basic filtering via a capacitor and resistor.

Pressing a key causes salt solution to flow over a copper and aluminium connection generating a low signal which is filtered by a capacitor and then amplified, creating a complex white noise, with poignant fluctuating oscillations.

The device demonstrates how complexity can be generated using simple analogue and wet components.

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