Instrument-independent analysis of music by means of the continuous wavelet transform

Gabriella Olmo; Fabio Dovis; Paolo Benotto; Claudio Calosso; Pierluigi Passaro

doi:10.1117/12.366827

26 October 1999 Instrument-independent analysis of music by means of the continuous wavelet transform

Gabriella Olmo, Fabio Dovis, Paolo Benotto, Claudio Calosso, Pierluigi Passaro

Proceedings Volume 3813, Wavelet Applications in Signal and Image Processing VII; (1999) https://doi.org/10.1117/12.366827
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

Gabriella Olmo, Fabio Dovis, Paolo Benotto, Claudio Calosso, and Pierluigi Passaro "Instrument-independent analysis of music by means of the continuous wavelet transform", Proc. SPIE 3813, Wavelet Applications in Signal and Image Processing VII, (26 October 1999); https://doi.org/10.1117/12.366827

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