{"id":1402,"date":"2021-10-12T12:27:05","date_gmt":"2021-10-12T12:27:05","guid":{"rendered":"https:\/\/www.data-ia.fr\/?p=1402"},"modified":"2021-10-12T12:32:39","modified_gmt":"2021-10-12T12:32:39","slug":"ia-dixieme-beethoven","status":"publish","type":"post","link":"https:\/\/www.data-ia.fr\/index.php\/2021\/10\/12\/ia-dixieme-beethoven\/","title":{"rendered":"Quand l&rsquo;intelligence artificielle permet de compl\u00e9ter la Dixi\u00e8me symphonie inachev\u00e9e de Beethoven"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:#eae9e9;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1216.8px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><style type=\"text\/css\">@media only screen and (max-width:800px) {.fusion-title.fusion-title-1{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-1{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h1 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:58;line-height:0.83;\"><h3 style=\"text-align: center;\"><strong>La Dixi\u00e8me symphonie inachev\u00e9e de Beethoven est aujourd&rsquo;hui une \u0153uvre\u00a0compl\u00e8te&#8230; Gr\u00e2ce \u00e0 la collaboration des musiciens et de l&rsquo;intelligence artificielle. Extrait \u00e0 \u00e9couter.<\/strong><\/h3><\/h1><\/div><div class=\"fusion-text fusion-text-1\"><p>Il est venu le temps o\u00f9 les oeuvres inachev\u00e9es d\u2019artistes d\u00e9c\u00e9d\u00e9s trop t\u00f4t pourront devenir des \u0153uvres compl\u00e8tes. Et ceci gr\u00e2ce \u00e0 l\u2019intelligence artificielle (IA). L\u2019exp\u00e9rience a \u00e9t\u00e9 r\u00e9alis\u00e9e sur l\u2019un des plus \u00e9minents compositeurs de musique classique et pr\u00e9curseur de la p\u00e9riode romantique : Ludwig van Beethoven. D\u00e9c\u00e9d\u00e9 en 1827 \u00e0 l\u2019\u00e2ge de 56 ans, il a laiss\u00e9 derri\u00e8re lui quelques esquisses de sa <em>Dixi\u00e8me symphonie<\/em>, qu\u2019il n\u2019aura jamais eu le temps de finir. Pr\u00e8s de deux si\u00e8cles plus tard, une \u00e9quipe de musiciens, compositeurs, d\u2019historiens et de scientifiques en informatique a termin\u00e9 le travail pour lui.<\/p>\n<\/div><style type=\"text\/css\">@media only screen and (max-width:800px) {.fusion-title.fusion-title-2{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-2{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h1 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:58;line-height:0.83;\"><h3 style=\"text-align: center;\"><strong>Inculquer la cr\u00e9ativit\u00e9 de Beethoven \u00e0 l\u2019IA<\/strong><\/h3><\/h1><\/div><div class=\"fusion-text fusion-text-2\"><p>Le projet de reconstitution de la <em>Dixi\u00e8me symphonie<\/em> de Beethoven a d\u00e9marr\u00e9 au d\u00e9but de l\u2019ann\u00e9e 2019, port\u00e9 Matthias R\u00f6der, le directeur de l\u2019Institut Karajan. Bas\u00e9 \u00e0 Salzburg en Autriche, cet \u00e9tablissement est d\u00e9di\u00e9 aux technologies de la musique, dont l\u2019IA. R\u00f6der a constitu\u00e9 une \u00e9quipe pour rassembler les \u00e9critures \u2013 tr\u00e8s \u00e9parses \u2013 de la <em>Dixi\u00e8me symphonie<\/em> de Beethoven et imaginer les parties manquantes en restant le plus fid\u00e8le au style du compositeur.<\/p>\n<p>Cependant, l\u2019IA avait trop peu d\u2019\u00e9l\u00e9ments de partition pour g\u00e9n\u00e9rer un morceau complet. Il a donc fallu inculquer le processus cr\u00e9atif de Beethoven en revisitant ses pr\u00e9c\u00e9dentes \u0153uvres ! L\u2019IA a analys\u00e9 comment les motifs musicaux construisaient les symphonies, comme par exemple la d\u00e9clinaison des quatre notes mondialement connue de la <em>Cinqui\u00e8me symphonie<\/em>.<\/p>\n<\/div><style type=\"text\/css\">@media only screen and (max-width:800px) {.fusion-title.fusion-title-3{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-3{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h1 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:58;line-height:0.83;\"><h3 style=\"text-align: center;\"><strong><span class=\"interTitre\">Deux mouvements de vingt minutes<\/span><\/strong><\/h3><\/h1><\/div><div class=\"fusion-text fusion-text-3\"><p>En combinant le travail de l\u2019IA et des musiciens, un premier \u00e9chantillon de la <em>Dixi\u00e8me symphonie<\/em> a pu voir le jour avec une version pour piano en novembre 2019. L\u2019extrait a \u00e9t\u00e9 jou\u00e9 devant des journalistes, des musicologues et des experts de Beethoven qui devaient d\u00e9terminer quelles parties \u00e9taient originales ou reconstitu\u00e9es. Le leurre \u00e9tait parfait. Ce test a \u00e9t\u00e9 r\u00e9it\u00e9r\u00e9 en arrangeant la partition pour un quatuor \u00e0 cordes. M\u00eame r\u00e9sultat.<\/p>\n<p>Apr\u00e8s 18 mois de travail, les deux mouvements de 20 minutes de la <em>Dixi\u00e8me symphonie<\/em> \u00e9taient achev\u00e9s. La derni\u00e8re \u00e9tape pour l\u2019IA consistait \u00e0 arranger la partition pour orchestre, c\u2019est-\u00e0-dire attribuer une partition \u00e0 chaque instrument de l\u2019orchestre symphonique. Le r\u00e9sultat final sera d\u00e9voil\u00e9 le 9 octobre 2021, jour de la premi\u00e8re mondiale pr\u00e9vue \u00e0 Bonn en Allemagne. En attendant, il est possible de faire revivre le compositeur allemand gr\u00e2ce \u00e0 un extrait de quelques minutes de la <em>Dixi\u00e8me symphonie<\/em> aujourd\u2019hui achev\u00e9e. Source : usinenouvelle.com<\/p>\n<\/div><div class=\"fusion-video fusion-youtube\" style=\"max-width:600px;max-height:360px;align-self:center; width:100%\"><div class=\"video-shortcode\"><iframe title=\"YouTube video player 1\" src=\"https:\/\/www.youtube.com\/embed\/RESb0QVkLcM?wmode=transparent&autoplay=0\" width=\"600\" height=\"360\" allowfullscreen allow=\"autoplay; fullscreen\"><\/iframe><\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-0{width:100% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-0 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 1.92%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 1.92%;}@media only screen and (max-width:800px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-1{ padding-top : 0px;margin-top : 0px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":1401,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"content-type":"","footnotes":""},"categories":[36],"tags":[],"class_list":["post-1402","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-i-a"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.6 - 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