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Proceedings Paper

Instrument-independent analysis of music by means of the continuous wavelet transform
Author(s): Gabriella Olmo; Fabio Dovis; Paolo Benotto; Claudio Calosso; Pierluigi Passaro
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Paper Abstract

This paper deals with the problem of automatic recognition of music. Segments of digitized music are processed by means of a Continuous Wavelet Transform, properly chosen so as to match the spectral characteristics of the signal. In order to achieve a good time-scale representation of the signal components a novel wavelet has been designed suited to the musical signal features. particular care has been devoted towards an efficient implementation, which operates in the frequency domain, and includes proper segmentation and aliasing reduction techniques to make the analysis of long signals feasible. The method achieves very good performance in terms of both time and frequency selectivity, and can yield the estimate and the localization in time of both the fundamental frequency and the main harmonics of each tone. The analysis is used as a preprocessing step for a recognition algorithm, which we show to be almost independent on the instrument reproducing the sounds. Simulations are provided to demonstrate the effectiveness of the proposed method.

Paper Details

Date Published: 26 October 1999
PDF: 11 pages
Proc. SPIE 3813, Wavelet Applications in Signal and Image Processing VII, (26 October 1999); doi: 10.1117/12.366827
Show Author Affiliations
Gabriella Olmo, Politecnico di Torino (Italy)
Fabio Dovis, Politecnico di Torino (Italy)
Paolo Benotto, Politecnico di Torino (Italy)
Claudio Calosso, Politecnico di Torino (Italy)
Pierluigi Passaro, Politecnico di Torino (Italy)

Published in SPIE Proceedings Vol. 3813:
Wavelet Applications in Signal and Image Processing VII
Michael A. Unser; Akram Aldroubi; Andrew F. Laine, Editor(s)

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