Title: Efficient implementation of a structured total least squares based speech compression method
Authors: Lemmerling, Philippe ×
Mastronardi, Nicola
Van Huffel, Sabine #
Issue Date: Jun-2003
Publisher: Elsevier science inc
Series Title: Linear algebra and its applications vol:366 pages:295-315
Abstract: We present a fast implementation of a recently proposed speech compression scheme, based on an all-pole model of the vocal tract. Each frame of the speech signal is analyzed by storing the parameters of the complex damped exponentials deduced from the all-pole model and its initial conditions. In mathematical terms, the analysis stage corresponds to solving a structured total least squares (STLS) problem. It is shown that by exploiting the displacement rank structure of the involved matrices the STLS problem can be solved in a very fast way. Synthesis is computationally very cheap since it consists of adding the complex damped exponentials based on the transmitted parameters.
ISSN: 0024-3795
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
NUMA, Numerical Analysis and Applied Mathematics Section
× corresponding author
# (joint) last author

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