In this paper, we discuss several improvements in sinusoidal coding. First, we present an analysis method which estimates windowed sinusoids to represent a segment of an input speech or audio signal. The window used in the analysis is the same magnitude-complementary window as is used in overlap-add synthesis, which makes analysis consistent with synthesis. It is hown how the overlapping nature of segments can be accounted for in the sinusoidal estimation. Second, we present techniques for optimization of sinusoidal parameters based on the squared difference between the input signal and reconstruction. Efficient methods for computation are also discussed. Experimental results verify that our procedures provide a significant improvement in reconstruction accuracy.

Authors: Vos, Koen; Vafin, Renat; Heusdens, Richard; Kleijn, W. Bastiaan
Affiliations: Department of Electrical Engineering, Delft University of Technology, Delft, TheNetherlands ; Department of Speech, Music and Hearing, Royal Institute of Technology, Stockholm, Sweden(See document for exact affiliation information.)
AES Conference: 17th International Conference: High-Quality Audio Coding (September 1999)
Paper Number: 17-025
Publication Date: September 1, 1999 Import into BibTeX
Subject: High Quality Audio Coding
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=8063

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