{"id":77538,"date":"2025-10-16T11:50:04","date_gmt":"2025-10-16T09:50:04","guid":{"rendered":"https:\/\/staging.garvanacoustic.com\/?p=77538"},"modified":"2025-10-16T11:53:14","modified_gmt":"2025-10-16T09:53:14","slug":"dolby-atmos-vs-dolby-digital","status":"publish","type":"post","link":"https:\/\/staging.garvanacoustic.com\/fr\/educative\/dolby-atmos-vs-dolby-digital\/","title":{"rendered":"Dolby Atmos vs Dolby Digital"},"content":{"rendered":"<section class=\"no-padding sm-no-padding xs-no-padding margin-0auto sm-margin-0auto xs-margin-0auto\"><div class=\"container\"><div class=\"row\"><div class=\"wpb_column hcode-column-container vc_col-sm-12 col-xs-mobile-fullwidth\" data-front-class=\"col-xs-mobile-fullwidth\"><div class=\"vc-column-innner-wrapper\">[vc_wp_text]\r\n<h1>Dolby Atmos vs Dolby Digital : quelle est la diff\u00e9rence ?<\/h1>\r\n<h2>Introduction<\/h2>\r\nLorsqu'il est question d'audio multicanal, les deux noms qui reviennent le plus souvent sont <strong>Dolby Digital<\/strong> et <strong>Dolby Atmos<\/strong>. Tous deux appartiennent \u00e0 la m\u00eame famille technologique, mais repr\u00e9sentent deux \u00e9poques diff\u00e9rentes du son immersif. Dans cet article, nous comparons les deux solutions pour comprendre ce qui change vraiment, quels sont les points forts de chacune et quand il est judicieux de choisir l'une ou l'autre.\r\n<h2>Qu'est-ce que le Dolby Digital ?<\/h2>\r\nIntroduit dans les ann\u00e9es 1990, le <strong>Dolby Digital (AC-3)<\/strong> est depuis longtemps la norme en mati\u00e8re de cin\u00e9ma et de home cin\u00e9ma. Il s'agit d'un syst\u00e8me <strong>\u00e0 canaux fixes<\/strong>: le son est distribu\u00e9 sur 5.1 canaux (avant, central, surround et subwoofer).\r\nChaque effet est pr\u00e9cis\u00e9ment assign\u00e9 \u00e0 un canal, ce qui garantit une \u00e9coute ordonn\u00e9e et coh\u00e9rente, mais limit\u00e9e aux directions pr\u00e9vues.\r\n\r\nLe Dolby Digital a rendu le son surround accessible au grand public et est toujours pr\u00e9sent dans les DVD, la t\u00e9l\u00e9vision num\u00e9rique et de nombreuses \u00e9missions t\u00e9l\u00e9vis\u00e9es aujourd'hui. Avec le temps est apparue son \u00e9volution, le Dolby Digital Plus (DD+), qui offre une compression plus efficace et la prise en charge d'un plus grand nombre de canaux. Le DD+ est largement utilis\u00e9 dans la <strong>diffusion en ligne<\/strong> et peut \u00e9galement servir de \"conteneur\" pour la distribution de pistes <strong>Dolby Atmos<\/strong> compress\u00e9es.\r\n<h2>Qu'est-ce que le Dolby Atmos ?<\/h2>\r\n<strong>Dolby Atmos<\/strong>, introduit en 2012, repr\u00e9sente une \u00e9volution radicale. Il ne fonctionne plus seulement avec des canaux fixes, mais avec des <strong>objets sonores<\/strong>: chaque effet, voix ou instrument peut \u00eatre positionn\u00e9 librement dans l'espace tridimensionnel,\r\nen incluant la dimension verticale.\r\n\r\nAtmos est \u00e9galement <strong>\u00e9volutif<\/strong>: il fonctionne aussi bien dans les grandes salles de cin\u00e9ma que dans le salon d'une maison, en s'adaptant au nombre et au type d'enceintes disponibles. Avec des configurations telles que le <a href=\"\/?p=76986\" target=\"_blank\" rel=\"noopener\"><strong>5.1.2<\/strong><\/a> ou la configuration <a href=\"\/?p=77004\" target=\"_blank\" rel=\"noopener\"><strong>7.1.4<\/strong><\/a> on obtient un effet enveloppant qui d\u00e9passe les limites du son surround classique.\r\n<h2>Tableau comparatif : Dolby Digital, DD+ et Atmos<\/h2>\r\n<div class=\"table-container\">\r\n<div class=\"table-fade-left\"><\/div>\r\n<div class=\"table-fade-right\"><\/div>\r\n<div class=\"table-wrapper dolby-table\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>Caract\u00e9ristiques<\/th>\r\n<th>Dolby Digital (AC-3)<\/th>\r\n<th>Dolby Digital Plus (DD+)<\/th>\r\n<th>Dolby Atmos<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>Ann\u00e9e d'introduction<\/td>\r\n<td>1992<\/td>\r\n<td>2005<\/td>\r\n<td>2012<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Approche<\/td>\r\n<td>Canaux fixes<\/td>\r\n<td>Canaux fixes (les plus efficaces)<\/td>\r\n<td>Objets sonores<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Nombre typique de canaux<\/td>\r\n<td>5.1 \/ 7.1<\/td>\r\n<td>Jusqu'\u00e0 7.1<\/td>\r\n<td>\u00c9volutif (de 5.1.2 \u00e0 des dizaines de haut-parleurs)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Dimension verticale<\/td>\r\n<td>Non<\/td>\r\n<td>Non<\/td>\r\n<td>Oui<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Compatibilit\u00e9<\/td>\r\n<td>DVD, t\u00e9l\u00e9vision num\u00e9rique, cin\u00e9ma<\/td>\r\n<td>Streaming en ligne, Blu-ray, diffusion HD<\/td>\r\n<td>Cin\u00e9ma, Blu-ray UHD, streaming (Netflix, Disney+, Apple TV+), musique, jeux vid\u00e9o<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Exp\u00e9rience d'\u00e9coute<\/td>\r\n<td>Surround \"classique\", soign\u00e9 mais limit\u00e9<\/td>\r\n<td>Surround plus efficace, mais toujours limit\u00e9<\/td>\r\n<td>Immersif, dynamique et tridimensionnel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Mat\u00e9riel requis<\/td>\r\n<td>5 haut-parleurs ou plus<\/td>\r\n<td>5 haut-parleurs ou plus<\/td>\r\n<td>Haut-parleurs avec canaux de hauteur (encastr\u00e9s, encastr\u00e9s au plafond, haut-parleurs)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<div class=\"table-hint\">\ud83d\udc49 Faites d\u00e9filer le tableau pour voir toutes les donn\u00e9es<\/div>\r\n<script>\r\n  \/\/ Script per il fade dinamico ai bordi\r\n  document.addEventListener(\"DOMContentLoaded\", function () {\r\n    const wrapper = document.querySelector(\".dolby-table\");\r\n    const fadeLeft = document.querySelector(\".table-fade-left\");\r\n    const fadeRight = document.querySelector(\".table-fade-right\");\r\n\r\n    if (!wrapper) return;\r\n\r\n    const checkFade = () => {\r\n      const scrollLeft = wrapper.scrollLeft;\r\n      const maxScroll = wrapper.scrollWidth - wrapper.clientWidth;\r\n\r\n      fadeLeft.style.opacity = scrollLeft > 5 ? \"1\" : \"0\";\r\n      fadeRight.style.opacity = scrollLeft < maxScroll - 5 ? \"1\" : \"0\";\r\n    };\r\n\r\n    wrapper.addEventListener(\"scroll\", checkFade);\r\n    checkFade();\r\n  });\r\n<\/script>\r\n<h2>Quand choisir l'un ou l'autre<\/h2>\r\n<ul>\r\n \t<li><strong>Le Dolby Digital (AC-3<\/strong> ) reste un choix viable pour le contenu sur DVD, la t\u00e9l\u00e9vision conventionnelle ou les syst\u00e8mes plus anciens : il est simple, l\u00e9ger et universel.<\/li>\r\n \t<li>Le <strong>Dolby Digital Plus (DD+)<\/strong> est d\u00e9sormais la norme pour la diffusion en continu et garantit une large compatibilit\u00e9, incluant souvent des pistes Atmos.<\/li>\r\n \t<li>Le <strong>Dolby Atmos<\/strong> est id\u00e9al pour ceux qui souhaitent une exp\u00e9rience immersive moderne, en tirant parti des plateformes de nouvelle g\u00e9n\u00e9ration, du Blu-ray UHD, des jeux ou d'un syst\u00e8me de home cin\u00e9ma d\u00e9di\u00e9.<\/li>\r\n<\/ul>\r\nEn r\u00e9sum\u00e9, Dolby Digital a marqu\u00e9 l'histoire de l'audio multicanal, tandis que Dolby Atmos repr\u00e9sente l'avenir. La diff\u00e9rence n'est pas seulement technique : Atmos modifie le langage m\u00eame avec lequel le son est cr\u00e9\u00e9 et v\u00e9cu.\r\n\r\nChez Garvan Acoustic, nous int\u00e9grons <strong>Dolby Atmos<\/strong> dans des solutions <a href=\"\/?page_id=63203\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">dans des solutions \u00e9l\u00e9gantes et fabriqu\u00e9es en Italie<\/span><\/a> con\u00e7ues pour transformer le visionnage \u00e0 domicile en une exp\u00e9rience semblable \u00e0 celle du cin\u00e9ma.[\/vc_wp_text]<\/div><\/div><\/div><\/div><\/section><section class=\"padding-one sm-padding-one xs-padding-one\"><div class=\"container\"><div class=\"row\"><div class=\"wpb_column hcode-column-container vc_col-sm-12 col-xs-mobile-fullwidth\" data-front-class=\"col-xs-mobile-fullwidth\"><div class=\"vc-column-innner-wrapper\">[vc_separator color=\"black\" border_width=\"3\"]<\/div><\/div><\/div><\/div><\/section><section class=\"no-padding sm-no-padding xs-no-padding margin-0auto sm-margin-0auto xs-margin-0auto\"><div class=\"container\"><div class=\"row\"><div class=\"wpb_column hcode-column-container vc_col-sm-12 col-xs-mobile-fullwidth\" data-front-class=\"col-xs-mobile-fullwidth\"><div class=\"vc-column-innner-wrapper\">[vc_wp_text][\/vc_wp_text]<\/div><\/div><\/div><\/div><\/section><section id=\"garvan\" class=\"padding-two-top sm-padding-two-top xs-padding-two-top\"><div class=\"container\"><div class=\"row\"><div class=\"wpb_column hcode-column-container vc_col-sm-12 col-xs-mobile-fullwidth\" data-front-class=\"col-xs-mobile-fullwidth\"><div class=\"vc-column-innner-wrapper\">[vc_cta h2=\"Demande d'information\" h4=\"Nos techniciens vous r\u00e9pondront dans les plus brefs d\u00e9lais.\" txt_align=\"center\" style=\"flat\" color=\"black\" el_width=\"md\" add_button=\"bottom\" btn_title=\"Demande d'information\" btn_color=\"warning\" btn_align=\"center\" btn_i_align=\"right\" btn_i_icon_fontawesome=\"fas fa-arrow-right\" btn_add_icon=\"true\" btn_link=\"url:mailto%3Agarvan%40garvanacoustic.com|target:_blank|\"]Garvan Acoustic offre aux clients int\u00e9ress\u00e9s par un achat la possibilit\u00e9 d'analyser leur situation actuelle lors d'un appel vid\u00e9o avec l'un de nos techniciens.[\/vc_cta]<\/div><\/div><\/div><\/div><\/section>","protected":false},"excerpt":{"rendered":"<p>[vc_wp_text] Dolby Atmos vs Dolby Digital : quelle est la diff\u00e9rence ? Introduction Lorsqu&rsquo;il est question d&rsquo;audio multicanal, les deux noms qui reviennent le plus souvent sont Dolby Digital et Dolby Atmos. Tous deux appartiennent \u00e0 la m\u00eame famille technologique, mais repr\u00e9sentent deux \u00e9poques diff\u00e9rentes du son immersif. Dans cet article, nous comparons les deux [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":77402,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"_joinchat":[],"footnotes":""},"categories":[1559,1543,1561],"tags":[],"class_list":["post-77538","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-educative","category-haut-parleurs","category-home-theatre","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Dolby Atmos vs Dolby Digital : diff\u00e9rences et comparaison | Garvan staging website.<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez les vraies diff\u00e9rences entre Dolby Atmos et Dolby Digital : qualit\u00e9, compatibilit\u00e9 et avantages pour le cin\u00e9ma, la musique et les jeux.\" \/>\n<meta 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