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Convention Paper

Multipitch Estimation of Harmonically-Related Event-Notes by Improving Harmonic Matching Pursuit Decomposition

Authors: Canadas-Quesada, Francisco Jesus; Carabias-Orti, Julio Jose; Mata-Campos, Raul; Ruiz-Reyes, Nicolas; Vera-Candeas, Pedro

AES Convention 124 · Paper 7388 · May 2008

Abstract

In this work, we propose a note detection approach based on harmonic matching pursuit (HMP) and specifically designed to detect simultaneous notes. However, HMP is not able to decompose harmonic sounds in different harmonic atoms when their fundamental frequencies are harmonically-related. To solve this problem, we
propose an algorithm, called atomic spectral smoothness (SS), that works over the harmonic atoms obtained by HMP. This algorithm is based on the spectral smoothness principle which supposes that the spectral envelope of a harmonic sound usually forms smooth contours.
Our proposal shows promising results for polyphonic musical signals with two harmonically-related note-events.

Details

Published in
AES Convention 124
AES Convention
124
Paper number
7388
Publication date
May 6, 2008
Session subject
Analysis and Synthesis of Sound
Affiliation
University of Jaen (See document for exact affiliation information.)
Type
Convention Paper