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Approximation of Dynamic Convolution Exploiting Principal Component Analysis: Objective and Subjective Quality Evaluation

In recent years, several techniques have been proposed in the literature in order to attempt the emulation of nonlinear electro-acoustic devices, such as compressors, distortions, and preamplifiers. Among them, the dynamic convolution technique is one of the most common approaches used to perform this task. In this paper an exhaustive objective and subjective analysis of a dynamic convolution operation based on principal components analysis has been performed. Taking into consideration real nonlinear systems, such as bass preamplifier, distortion, and compressor, comparisons with the existing techniques of the state of the art have been carried out in order to prove the effectiveness of the proposed approach.

Authors: Primavera, Andrea; Cecchi, Stefania; Romoli, Laura; Gasparini, Michele; Piazza, Francesco
Affiliation: Universitá Politecnica della Marche, Ancona (AN), Italy
AES Convention:133 (October 2012) Paper Number:8792 Import into BibTeX
Subject:Analysis and Synthesis of Sound

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