I just finished making a prototype of an expander module for the Erthenvar Patch Chord. The expander has switches that let you select an octave up or down for each semitone.
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https://www.youtube.com/watch?v=fKT-3C9wWFQ
First night of testing our solar powered rain machine. The machine runs at random intervals for around three hours each night. We need to test the mechanical reliability for a few days then it will be deployed in North Park (San Diego).
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https://www.youtube.com/watch?v=usYyDzUyAtw
Telephone pickup coil probing an old laptop into Entry Point - Square Out to Patch Chord. Chords to Springray and Exciter coil.
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https://www.youtube.com/watch?v=fl63mZpakf0
Experiment with a CTACT Capsule contact microphone molded into a polyurethane sphere and placed in an electric kettle. The CTACT Capsule has an integrated JFET preamp which helps reduce the electromagnetic noise from the kettle. I imagine the heating of the piezo element and preamp contribute to the evolving character of the sound.
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https://www.youtube.com/watch?v=LgBhSD3zGM4