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
  • 295 (literal)
Pagina fine
  • 315 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 366 (literal)
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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