An Interactive Sonification System for Swimming Evaluated by Users

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Abstract

We introduce a novel setting for the measurement, real-time processing and interactive acoustic representation (sonification) of changing hydrodynamic pressure induced by the hand-water-interaction, causing momentum changes and in reaction to that propulsion. The sound is presented in real-time both to the swimmer, via in-ear waterproof headphones, and to the coach.
We used our setting in a first empirical test concerning the symmetry of induced effects of hand-water-interaction during breaststroke swimming. The swimmers were asked to attend to the sounds and in case they perceive asymmetry, they should try to adapt their interaction, interactively in combination with the actual motion and body perception. Afterwards, swimmers were asked to judge the usability of the system. As a result, the functional sounds were ranked to be helpful to change hand-water-interaction.

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