Dynamic soundtracking presents various practical and aesthetic challenges to composers working with games. This paper presents an implementation of a system addressing some of these challenges with an affectively-driven music generation algorithm based on a second order Markov-model. The system can respond in real-time to emotional trajectories derived from 2-dimensions of affect on the circumplex model (arousal and valence), which are mapped to five musical parameters. A transition matrix is employed to vary the generated output in continuous response to the affective state intended by the gameplay.

Authors: Williams, Duncan; Kirke, Alexis; Eaton, Joel; Miranda, Eduardo; Daly, Ian; Hallowell, James; Roesch, Etienne; Hwang, Faustina ;Nasuto, Slawomir J.
Affiliations: Plymouth University, Plymouth, UK; University of Reading, Reading, UK(See document for exact affiliation information.)
AES Conference: 56th International Conference: Audio for Games (February 2015)
Paper Number: 2-2
Publication Date: February 11, 2015
Subject: Generative Music Systems

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