{"id":449,"date":"2012-02-15T22:08:59","date_gmt":"2012-02-15T22:08:59","guid":{"rendered":"https:\/\/www.compositeur-arrangeur.com\/blog\/242-adapter-le-tempo-a-la-duree-d-une-sequence-video\/"},"modified":"2012-02-15T22:08:59","modified_gmt":"2012-02-15T22:08:59","slug":"242-adapter-le-tempo-a-la-duree-d-une-sequence-video","status":"publish","type":"post","link":"https:\/\/www.compositeur-arrangeur.com\/blog\/242-adapter-le-tempo-a-la-duree-d-une-sequence-video\/","title":{"rendered":"Adapter le tempo \u00e0 la dur\u00e9e d’une s\u00e9quence vid\u00e9o"},"content":{"rendered":"

\nUn nouvel article \u00e9crit par Guillaume Baron<\/ins><\/a>
\n<\/font>
\nTanguy<\/em><\/p>\n

———————————————-<\/p>\n

Il est parfois n\u00e9cessaire lorsque l’on compose sur support vid\u00e9o, d’adapter son tempo en fonction de la longueur d’une s\u00e9quence.<\/p>\n

Par exemple, on a une s\u00e9quence qui d\u00e9bute au \u00ab\u00a0fade in\u00a0\u00bb de la sc\u00e8ne. C’est notre instant t=0s. Puis \u00e0 28 secondes il se passe quelques chose, la musique doit s’arr\u00eater nette. Seulement elle ne doit pas s’arr\u00eater au milieu du morceau, mais apr\u00e8s une succession de 8 mesures de 4 temps.<\/p>\n

Comment trouver alors le bon tempo pour que cela colle ? Et bien le calcul est au final simple, mais un peu fastidieux \u00e0 trouver si on est mauvais en math\u00e9matiques.<\/p>\n

Prenons donc la s\u00e9quence qui nous int\u00e9resse.<\/p>\n

Je sais :<\/strong><\/p>\n

    \n
  1. qu’elle doit faire exactement 28 secondes.<\/li>\n
  2. qu’il doit y avoir 8 mesures de 4 temps.<\/li>\n<\/ol>\n

    <\/p>\n

    Trois \u00e9tapes sont n\u00e9cessaires :<\/strong><\/p>\n

    I \u2013 Combien de temps au total<\/ins> ?<\/p>\n

    On a 8 mesures de 4 temps, ce qui nous fait 32 temps (8 X 4 = 32).<\/p>\n

    II \u2013 Combien de temps par seconde<\/ins> ?<\/p>\n

    On a 32 temps pour 28 secondes, soient 32\/28 temps pour 1 seconde.<\/p>\n

    III \u2013 Tempo pour 28 secondes<\/ins> ?<\/p>\n

    On sait que le tempo : noire = 60<\/strong> correspond \u00e0 la seconde.
    \nDonc on calcule (32\/28) X 60 = 68,571 …<\/p>\n

    Donc :
    \nPour faire rentrer 8 mesures de 4 temps dans 28 secondes de vid\u00e9o, je dois entrer dans mon s\u00e9quenceur un tempo : noire = 68,571<\/strong><\/p>\n

    De mani\u00e8re g\u00e9n\u00e9rale, il vous suffit d’appliquer la formule :
    \nTempo s\u00e9quenceur = (nb de temps \/ nb de secondes de la s\u00e9quence) X 60<\/strong><\/p>\n

    Guillaume Baron
    \n    www.guillaumebaron.com<\/a><\/p>\n

    Pour suivre mes actualit\u00e9s sur Facebook, rendez-vous sur ma Page Pro<\/u><\/a> et cliquez sur \u00ab\u00a0j’aime\u00a0\u00bb.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Un nouvel article \u00e9crit par Guillaume Baron Tanguy ———————————————- Il est parfois n\u00e9cessaire lorsque l’on compose sur support vid\u00e9o, d’adapter son tempo en fonction de la longueur d’une s\u00e9quence. Par exemple, on a une s\u00e9quence qui d\u00e9bute au \u00ab\u00a0fade in\u00a0\u00bb de la sc\u00e8ne. C’est notre instant t=0s. Puis \u00e0 28 secondes il se passe quelques […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","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":[12],"tags":[],"class_list":["post-449","post","type-post","status-publish","format-standard","hentry","category-sequenceurs-trucs-et-astuces"],"_links":{"self":[{"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/posts\/449","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/comments?post=449"}],"version-history":[{"count":0,"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/posts\/449\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/media?parent=449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/categories?post=449"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.compositeur-arrangeur.com\/blog\/wp-json\/wp\/v2\/tags?post=449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}