In this paper we propose a new sinusoidal modeling method based on perceptual matching pursuits with application to parametric audio coding. Complex exponentials compose the overcomplete dictionary for matching pursuits. The main contribution is the minimization of a perceptual distortion measure defined in the bark scale to select the optimum atom at each iteration of the pursuits. Furthermore, a psychoacoustic stopping criterion for the pursuits is presented. The proposed sinusoidal modeling method is suitable to be integrated into a parametric audio coder based on the three-part model of Sines, Transients and Noise (STN model), as appreciated in experimental results. Our method provides significant advantages regarding previous works mainly because it operates in the bark scale, instead of the frequency scale.

Authors: Ruiz Reyes, Nicolas; Vera Candeas, Pedro
Affiliation: University of Jaen
AES Convention: 118 (May 2005) Paper Number: 6377
Publication Date: May 1, 2005 Import into BibTeX
Subject: Low Bit Rate Coding
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=13093

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 118Papers)   /118/6377.pdf

Start a discussion about this paper!