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oai:recercat.cat:2117/856882025-07-17T04:03:31Zcom_2072_1033col_2072_452950

Frame reduction in LPC isolated word recognition Nadeu Camprubí, Climent Lleida Solano, Eduardo Mariño Acebal, José Bernardo Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla Àrees temàtiques de la UPC::Enginyeria de la telecomunicació Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la parla i del senyal acústic Word recognition Reconeixement de paraules It is well know that the pattern matching approach to word-based recognition yields good results when the time aligriment is carried out by means of dynamic programming. However, the high computational expenditure needed by it, specially for large vocabularies, has motivated a number of works proposing the use of techniques that reduce the pattern lenght. In this paper, three different frame or spectrum reduction methods are investigated in a LPC isolated word recognition framework. The reduction performance with different degrees of nonlinearity is tested, and reasons showing its relationship with some kind of actual endpoint detection innaruracies are given. Peer Reviewed Postprint (published version) 1986 Conference report Nadeu, C., Lleida, E., Mariño, J.B. Frame reduction in LPC isolated word recognition. A: European Signal Processing Conference. "EUSIPCO 1986: Signal processing III: theories and applications proceedings of EUSIPCO-86: Third European Signal Processing Conference: The Hague, The Netherlands: September 2-5, 1986". Barcelona: 0, p. 557-560. https://hdl.handle.net/2117/85688 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access 4 p. application/pdf