Real-Time Phase Vocoder Manipulation by Runner’s Pace

Hockman, Jason A. and Wanderley, Marcelo M. and Fujinaga, Ichiro

Proceedings of the International Conference on New Interfaces for Musical Expression

This paper presents a method for using a runner’s pacefor real-time control of the time-scaling facility of a phasevocoder, resulting in the automated synchronization of anaudio track tempo to the generated control signal. The increase in usage of portable music players during exercisehas given rise to the development of new personal exerciseaids, most notably the Nike+iPod system, which relies onembedded sensor technologies to provide kinematic workout statistics. There are also systems that select songs basedon the measured step frequency of a runner. The proposedsystem also uses the pace of a runner, but this information isused to change the tempo of the music.