{"id":8753,"date":"1995-01-01T00:00:00","date_gmt":"1995-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1995\/01\/01\/tecnicas-de-speech-enhancement-considerando-estadisticas-de-orden-superior\/"},"modified":"1995-01-01T00:00:00","modified_gmt":"1995-01-01T00:00:00","slug":"tecnicas-de-speech-enhancement-considerando-estadisticas-de-orden-superior","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/tecnicas-de-speech-enhancement-considerando-estadisticas-de-orden-superior\/","title":{"rendered":"Tecnicas de speech enhancement considerando estadisticas de orden superior."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Josep M. Salavedra Moli <\/strong><\/h2>\n<p>Las prestaciones de muchos sistemas de procesado de voz se degradan rapidamente en aplicaciones reales ante la presencia de ruido. Para solucionar este problema las tecnicas de speech enhancement pretenden reducir este ruido realzando la se\u00f1al de voz degradada. Se han considerado las tecnicas basadas en un filtrado de wiener. Tradicionalmente, estas tecnicas han mostrado unas prestaciones superiores a otras metodolog\u00edas, como por ejemplo la sustraccion espectral. Sin embargo, estas tecnicas de filtrado de wiener hacen uso de las estadisticas de segundo orden (funcion autocorrelacion) y, enconsecuencia, presentan una elevada sensibilidad al ruido. Una aportacion importante de este trabajo consiste en la incorporacion de las estadisticas de orden superior (hos) al proceso de estimacion de la voz a partir de la se\u00f1al de voz ruidosa.  este estudio muestra como las hos son menos sensibles ante la presencia de ruido y conducen a superiores reducciones de ruido dentro del entorno del filtrado iterativo de wiener. Se han estudiado diversos algoritmos combinando filtrado de wiener y las hos obteniendose unas prestaciones claramente superiores.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Tecnicas de speech enhancement considerando estadisticas de orden superior.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Tecnicas de speech enhancement considerando estadisticas de orden superior. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Josep M. Salavedra Moli <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1995<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Enrique Masgrau Gomez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Climent Nadeu Camprubi <\/li>\n<li>Carmen Garc\u00eda Mateo (vocal)<\/li>\n<li>M. Stern Richard (vocal)<\/li>\n<li>Luis Alfonso Hernandez Gomez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Josep M. Salavedra Moli Las prestaciones de muchos sistemas de procesado de voz se degradan rapidamente en [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[332,15596,2489],"tags":[22108,30527,15974,30526,22109,30528],"class_list":["post-8753","post","type-post","status-publish","format-standard","hentry","category-ciencias-tecnologicas","category-politecnica-de-catalunya","category-tecnologia-de-las-telecomunicaciones","tag-carmen-garcia-mateo","tag-climent-nadeu-camprubi","tag-enrique-masgrau-gomez","tag-josep-m-salavedra-moli","tag-luis-alfonso-hernandez-gomez","tag-m-stern-richard"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/8753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=8753"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/8753\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=8753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=8753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=8753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}