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Convention Paper

On the Effect of Reverberation on Musical Instrument Automatic Recognition

Authors: Barthet, Mathieu; Sandler, Mark

AES Convention 128 · Paper 8110 · May 2010

Abstract

This study investigates the effect of reverberation on the accuracy of a musical instrument recognition model based on Line Spectral Frequencies and K-means clustering. 180 experiments were conducted by varying the type of music databases (isolated notes, solo performances), the stage in which the reverberation is added (learning and/or testing), and the reverberation type (3 different Reverberation Times, 10 different dry-wet levels). The performances of the model systematically decreased when reverberation was added at the testing stage (by up to 40%). Conversely, when reverberation was added at the training stage, a 3%-increase of performance was observed for the solo performances database. The results suggest that pre-processing the signals with a dereverberation algorithm before classification may be a means to improve musical instrument recognition systems.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
8110
Publication date
May 6, 2010
Session subject
Audio Content Management—Audio Information Retrieval
Affiliation
Centre for Digital Music, Queen Mary University of London, London, UK (See document for exact affiliation information.)
Type
Convention Paper