Instrument prints in note separation of polyphonic music

Authors:
Kristóf Aczél;István Vajk
Affiliations:
Department of Automation and Applied Informatics, Budapest University of Technology and Economics, Budapest, Hungary;Department of Automation and Applied Informatics, Budapest University of Technology and Economics, Budapest, Hungary
Venue:
ISPRA'08 Proceedings of the 7th WSEAS International Conference on Signal Processing, Robotics and Automation
Year:
2008

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Abstract

Decomposing a polyphonic musical recording to separate instrument tracks or notes has always been a challenge. Such a signal is the superposition of many separate tracks, and it is theoretically impossible to extract the component tracks without the information that was lost at the superposition. One of the ways of note separation is splitting the energy of the recording based on reference models of instruments. This paper introduces a possible structure for these models, concentrating on how they are built into the separation process.