Modelling of Natural Sounds Using Time-Frequency and Wavelet Representations

Authors: Kronland-Martinet R., Guillemain P., Ystad S.
Publication Date: May 1997
Journal: Organised sound (Vol.2(3), pp.179-191, Cambridge University Press, 1997.)

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Sound modelling is a generalisation of the analysis-synthesis process since it combines sound processing and algorithmic synthesis within the same formalism. Its aim is to realize sound simulators using synthesis methods based on signal models or physical models, the parameters of which are directly extracted from the analysis of natural sounds. In this article we describe successive steps that are necessary for the realization of such systems. These steps are numerical synthesis and different sound generation methods; analysis of natural sounds, particularly time-frequency and time-scale (wavelet) representations; extraction of pertinent parameters; and finally the determination of the correspondence between these parameters and those corresponding to the synthesis models. Additive synthesis, non-linear synthesis and waveguide synthesis are treated.