Encoding sound by polynomial interpolation for intelligent dynamic music in computer games

Abstract

Current research in computer music composition almost exclusively involves the manipulation of music stored as MIDI data. While this allows direct access to the structure of music, it creates limitations in realism for the end result of such techniques. This paper describes a method designed to represent music in a form that facilitates the use of existing processing techniques while conserving the ‘real-world’ attributes of music recorded in PCM format giving computergame developers a facility for the production of variations on a pre-recorded theme, whatever the original source. Experimental results are presented to demonstrate that polynomial interpolation is a viable technique.