An evaluation of warping techniques applied to partial envelope analysis


Timoney, Joseph and Lysaght, Thomas and MacManus, Lorcan and Lazzarini, Victor (2005) An evaluation of warping techniques applied to partial envelope analysis. In: International Computer Music Conference (ICMC) 2005, September 5-9 2005, Barcelona, Spain.

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Abstract

Traditional methods for partial envelope analysis run into difficulties in the presence of tremolo and noise. This paper investigates an alternative method of analysis that uses a variety of non-linear warping techniques to match a synthetic envelope template to the partial envelope. Generation of suitable templates is discussed and the variety of implementations for the warping algorithm is examined. A complete procedure for matching the template is then explained and justified. Application of this procedure to partial envelope analysis of flute sounds is described and the results presented demonstrate the best choice of warping implementation. This technique allows for better envelope segmentation thus enabling improved modelling in representations such as the Timbre Model

Item Type: Conference or Workshop Item (Paper)
Keywords: ADSR envelope; Harmonic partial analysis; Dynamic Time Warping;
Academic Unit: Faculty of Arts,Celtic Studies and Philosophy > Music
Faculty of Science and Engineering > Computer Science
Item ID: 4171
Depositing User: Joseph Timoney
Date Deposited: 01 Feb 2013 09:09
Refereed: Yes
URI:

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