The GLOBE: Evaluating Sensors for Interactive Computer Music Performance

Abstract

This thesis research proposes a creative process for designing a DMI (Digital Musical Instrument) through an evaluation of sensors and in the context of interactive computer music performance. In this process, the author uses the affordances and limitations of different types of sensors to generate ideas for possible DMI designs. The chosen design to construct is the GLOBE (Gesture-sensing, Luminous, Oscillating Ball Environment). It has touch sensors, an accelerometer, a proximity sensor, a colour sensor, and colour-changing LEDs. The sensors and physical geometry of the GLOBE supports many gestures and instrumental techniques for the performer to control sound in real time. Two Etudes performed with the GLOBE premiered on YouTube Live on May 22nd, 2020. The online audience was asked to complete a voluntary survey to provide their feedback on the instrument and performance. The evaluation of the GLOBE as an effective musical instrument includes their feedback, as well as the author’s perspective as the designer, composer/programmer, and performer.