Here we reveal autechre’s secrets. Well, this is a lie, but the resemblance is stunning. We emit ultrasonic energy at a single frequency of 26000hz or 26khz roughly. The impedance mismatch causes loss into the foil over many different reflections and is essentially a lossy waveguide that radiates unabsorbed vibrational energy back to air at lower, audible frequencies. Not a bad explanation.. not exactly correct but the essential part is that we get sound from ultrasound, and we can construct arbitrary resonance/damping chambers with aluminum foil, litterally defining synthesis via metal geometry shaped by human hands. Please email: [email protected] or @mroldpro on telegram or txt/call 804-251-0037 if you are interested in a bespoke configuration of this most curious new electronic ultra acoustic instrument. All sounds in this video are dry, when reverb is applied, omg.