The Water Box is played by operating a bellow. By pushing the bellow, users blow air into a jug of water, which produces bubbles. The sound of the bubbles is then picked up by a hydrophone, and processed by the Raspberry Pi.
Rob’s audio notes
The box uses a hydrophone input which is then passed through a custom comb filter, reverb, and ring modulation.
How we built it
The box follows our general box design with these modifications:
- We placed a jug of water inside the box. A silicone tube was run from the bellow into the jug of water. A hydrophone was also fed into the jug. The hydrophone was connected to a pre-amp, the output of which went to the audio interface connected to the Raspberry Pi.
Box Fabrication Videos
Testing the hydrophone.
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