Coplay – an interactive sound installation

‘Coplay’ is an interactive sound installation which allows computer and user to play music together.

Interactive System Engineer, Haoyi Xu and Audio Designer Sun Yuxuan explain how they got inspired by Brian Eno, a musician who likes to use algorithms and random numbers to generate ambient music.

When composing music by algorithms, musicians are designing rules, instead of composing specific sections. Although sounds and clips are randomly combined by a computer, they are still musical sounds.

In this project, a computer generates random music through Ableton live mode, while people play MIDI instruments and trigger several clips by touching the conductive keys.

The notes were set in pentatone, so the audience wouldn’t hear any unharmonic sounds.

They uploaded the MIDI interface code to the Touch Board and they mapped the buttons in Ableton Live; the round buttons on the left play the top clips, whilst the rectangle buttons on the right play single notes.

Images & Video: Haoyi Xu

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