{"id":20527,"date":"2002-12-12T00:00:00","date_gmt":"2002-12-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/identificacion-automatica-de-acordes-musicales\/"},"modified":"2002-12-12T00:00:00","modified_gmt":"2002-12-12T00:00:00","slug":"identificacion-automatica-de-acordes-musicales","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/politecnica-de-madrid\/identificacion-automatica-de-acordes-musicales\/","title":{"rendered":"Identificaci\u00f3n autom\u00e1tica de acordes musicales"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Luis Ortiz Berenguer <\/strong><\/h2>\n<p>La identificaci\u00f3n autom\u00e1tica de acordes musicales es un eslab\u00f3n en la cadena de la transcripci\u00f3n autom\u00e1tica. Si bien existen varios trabajos sobre identificaci\u00f3n de notas (pitch y fundamental) y sobre detecci\u00f3n polif\u00f3nica y separaci\u00f3n de parciales, todav\u00eda queda basantante por resolver, y esta tesis supone una contribuci\u00f3n a la resoluci\u00f3n del problema muy especial de la identificaci\u00f3n de acordes de pianos.  el m\u00e9todo planteado para la identificaci\u00f3n es el del reconocimiento de patrones espectrales. Hay dos aspectos muy espec\u00edficos en el m\u00e9todo presentado:  a,- los patrones espectrales son espectros completos y no s\u00f3lo par\u00e1metros espectrales.  b,- los patrones se generan a partir de un modelo ac\u00fastico simple del piano.  para asegurar la adecuaci\u00f3n de los patrones as\u00ed como la generalidad del m\u00e9todo para otros pianos, el modelo ac\u00fastico se entrena para cada piano a identificar.  las caracter\u00edsticas especiales de las notas del piano, hacen que el algoritmo de an\u00e1lisis usado para extraer los par\u00e1metros de entrenamiento, hay tenido que ser desarrollado espec\u00edficamente.  los par\u00e1metros de entrenamiento, obtenidos de unas pocas notas, son usados por el modelo ac\u00fastico del piano para calcular los par\u00e1metros de todas las 88 notas del piano, de los que se derivan los valores de frecuencia central y anchura espectral de los patrones a generar.  la se\u00f1al que va a ser identificada se comparar\u00e1 con los patrones con una t\u00e9cnica de reconocimiento de patrones mediante \u00abpattern-matching\u00bb. La comparaci\u00f3n se realiza con una m\u00e9trica simple consistente en el c\u00e1lculo del producto interno del espectro de la se\u00f1al y el espectro patr\u00f3n.  previamente a la identificaci\u00f3n, a la se\u00f1al se le calcula la fft, se limpia el espectro mediante una umbralizaci\u00f3n simple y se realiza una predetecci\u00f3n de la banda a la que pertence la se\u00f1al. La predetecci\u00f3n permite eliminar ciertas incertidumbres entre patrones de bandas disti<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Identificaci\u00f3n autom\u00e1tica de acordes musicales<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Identificaci\u00f3n autom\u00e1tica de acordes musicales <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Luis Ortiz Berenguer <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 12\/12\/2002<\/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>Francisco Javier Casajus Quiros<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Luis alfonso Hernandez gomez <\/li>\n<li> Sobreira seoane Manuel a. (vocal)<\/li>\n<li>Jos\u00e9 Javier Lopez monfort (vocal)<\/li>\n<li>Fernando Beltran blazquez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Luis Ortiz Berenguer La identificaci\u00f3n autom\u00e1tica de acordes musicales es un eslab\u00f3n en la cadena de la [&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":[16008],"tags":[62420,44142,62419,22109,62417,62418],"class_list":["post-20527","post","type-post","status-publish","format-standard","hentry","category-politecnica-de-madrid","tag-fernando-beltran-blazquez","tag-francisco-javier-casajus-quiros","tag-jose-javier-lopez-monfort","tag-luis-alfonso-hernandez-gomez","tag-luis-ortiz-berenguer","tag-sobreira-seoane-manuel-a"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/20527","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=20527"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/20527\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=20527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=20527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=20527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}