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A Segmental Spectro-Temporal Model of Musical Timbre

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text
 

Genre(s)

article
 

Forme(s)

document numérique
 

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Titre

A Segmental Spectro-Temporal Model of Musical Timbre
 

Nom(s)

Burred, Juan José (auteur)
 
Roebel, Axel (auteur)
 

Publication

Graz, Austria , 2010
 

Description

Sujet(s)

Timbre classification   spectro-temporal envelope   instrument classification   music instrument model
 

Résumé

We propose a new statistical model of musical timbre that han- dles the different segments of the temporal envelope (attack, sus- tain and release) separately in order to account for their differ- ent spectral and temporal behaviors. The model is based on a reduced-dimensionality representation of the spectro-temporal en- velope. Temporal coefficients corresponding to the attack and re- lease segments are subjected to explicit trajectory modeling based on a non-stationary Gaussian Process. Coefficients correspond- ing to the sustain phase are modeled as a multivariate Gaussian. A compound similarity measure associated with the segmental model is proposed and successfully tested in instrument classification ex- periments. Apart from its use in a statistical framework, the mod- eling method allows intuitive and informative visualizations of the characteristics of musical timbre.
 

Note(s)

Contribution au colloque ou congrès : Digital Audio Effects (DAFx)
 

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Date de la notice

2010-12-17 01:00:00
 

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