Design space exploration of hardware platforms for interactive low latency movement sonification

Objective real-time acoustic feedback of complex movements arises in applications ranging from assisted training in sport to medical rehabilitation. This so called interactive movement sonification enables continuous feedback. Multiple studies have shown the benefit of sonification in movement relearning. Ubiquitous feedback requires a mobile and wearable hardware platform independent from any application. Therefore, in this paper a design space exploration regarding the design objectives power dissipation and latency is performed. Especially in sports or medical rehabilitation a low-latency feedback is crucial. Furthermore, low power dissipation mobile devices enable the utilization of the sonification technique within new applications. The most computational intensive task within the data-flow is real-time interactive sound synthesis. In contrast to commercial processors, customizable processors enable execution time reduction of critical sections by integration of application specific instruction set extensions. This paper aims to show the benefits from processor customization, as well as the location of consumer electronics devices within the design space.