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Sound Texture Analysis Based on a Dynamical Systems Model and Empirical Mode Decomposition

This paper describes a system for separating a musical stream into sections having different textural qualities. This system translates several contemporary approaches to video texture analysis, creating a novel approach in the realm of audio and music. We first represent the signal as a set of mode functions by way of the Empirical Mode Decomposition (EMD) technique for time/frequency analysis, before expressing the dynamics of these modes as a linear dynamical system (LDS). We utilize both linear and nonlinear techniques in order to learn the system dynamics, which leads to a successful separation of the audio in time and frequency.

Authors: Van Nort, Doug; Braasch, Jonas; Oliveros, Pauline
Affiliation: Rensselaer Polytechnic Institute, Troy, NY, USA
AES Convention:129 (November 2010) Paper Number:8251 Import into BibTeX
Subject:Signal Analysis and Synthesis

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