Opens in a new tab

AES E-Library

← Back to search

Convention Paper

A High Level Musical Score Alignment Technique Based on Fuzzy Logic and DTW

Authors: Gagnon, Bruno; Lefebvre, Roch; Brunet, Charles-Antoine

AES Convention 123 · Paper 7251 · October 2007

Abstract

This paper presents a system to align musical notes extracted from an audio signal with the notes of the musical score being played. Building on conventional alignment systems using Dynamic Time Warping (DTW), the proposed method uses fuzzy logic to create the similarity matrix used by DTW. Like a musician following a score, the fuzzy logic system uses high level information as its inputs, such as note identity, note duration and local rhythm. Using high level information instead of frame by frame information reduces substantially the size of the DTW similarity matrix and thus reduces significantly the complexity to find the best path for alignment. Finally, the proposed method can automatically track where a musician starts and stops playing in a musical score.

Details

Published in
AES Convention 123
AES Convention
123
Paper number
7251
Publication date
October 6, 2007
Session subject
Signal Processing Applied To Music
Affiliation
University of Sherbrooke (See document for exact affiliation information.)
Type
Convention Paper