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Prior Subspace Analysis for Drum Transcription

This paper introduces the technique of Prior Subspace Analysis (PSA) as an alternative to Independent Subspace Analysis (ISA) in cases where prior knowledge about the sources to be separated is available. The use of prior knowledge overcomes some of the problems associated with ISA, in particular the problem of estimating the amount of information required for separation. This results in improved robustness for transcription purposes. Prior knowledge is incorporated by use of a set of prior frequency subspaces that characterise features of the sources to be extracted. The effectiveness and robustness of PSA is demonstrated by its use in a simple drum transcription algorithm.

Authors: FitzGerald, Derry; Lawlor, Robert; Coyle, Eugene
Affiliations: Music Technology Center, Dublin Institute of Technology, Dublin, Ireland ; Department of Electronic Engineering, National University of Ireland, Maynooth, Ireland ; Department of Electronic Engineering, Dublin Institute of Technology,Dublin Ireland(See document for exact affiliation information.)
AES Convention:114 (March 2003) Paper Number:5808 Import into BibTeX
Subject:Analysis and Synthesis of Sound

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