http://www.cnr.it/ontology/cnr/individuo/prodotto/ID7754
Efficient implementation of a Structured Total Least
Squares based speech compression method (Articolo in rivista)
- Type
- Label
- Efficient implementation of a Structured Total Least
Squares based speech compression method (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Alternative label
Lemmerling, P., Mastronardi N., Van Huffel, S. (2003)
Efficient implementation of a Structured Total Least
Squares based speech compression method
in Linear algebra and its applications
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Lemmerling, P., Mastronardi N., Van Huffel, S. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
- Articolo pubblicato su rivista internazionale (literal)
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Lemmerling,P., Van Huffel,S.
SISTA/COSIC, Department of Electrical Engineering, Katholieke Universiteit Leuven
Kasteelpark Arenberg 10, 3001 Leuven, Belgium.
Mastronardi, N.,
Istituto per le Applicazioni del Calcolo \"M.Picone\", sez. Bari,
via Amendola 122/D, 70126 Bari (literal)
- Titolo
- Efficient implementation of a Structured Total Least
Squares based speech compression method (literal)
- 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.
The compression scheme is applied on a speech signal. The speed
improvement of the fast vocoder analysis scheme is demonstrated. Furthermore, the
quality of the compression scheme is
compared with that of a standard coding algorithm, by using
the segmental Signal-to-Noise Ratio. (literal)
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