Spierings' Echo combines bespoke speakers with removable tubes made of different materials that can be used to alter the properties of the music played by the system.
Described as a "soundscape that makes acoustics visible and tactile", the system features tubes in different lengths made from three different materials ? ash wood, fabric-covered foam and brass. The tubes can be attached to a 3D-printed speaker module. The speakers are connected to a computer running the music program Ableton, via an amplifier and an audio-splitter, which directs them to play audio in response to a tube being placed on top of each one.
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