Opens in a new tab

AES E-Library

← Back to search

Conference Paper

High-Quality Consistent Analysis-Synthesis in Sinusoidal Coding

Authors: Vos, Koen; Vafin, Renat; Heusdens, Richard; Kleijn, W. Bastiaan

AES Conference: 17th International Conference: High-Quality Audio Coding · Paper 17-025 · September 1999

Abstract

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.

Details

Published in
AES Conference: 17th International Conference: High-Quality Audio Coding
Paper number
17-025
Publication date
September 6, 1999
Session subject
High Quality Audio Coding
Affiliation
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.)
Type
Conference Paper