Note separation of polyphonic music by energy split

  • 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

A polyphonic musical recording is the superposition of many separate tracks which are downmixed to fewer channels. Decomposition of such a signal to separate instrument tracks or notes has always been a challenge. It is theoretically impossible to extract the component tracks without the information that was lost at the superposition. In this paper a new way of sound separation of mono-aural digital recordings is proposed where lost information is recovered by using a model of real instruments in order to make the separation of individual musical notes possible.