{"id":51475,"date":"2020-11-19T19:47:26","date_gmt":"2020-11-19T19:47:26","guid":{"rendered":"https:\/\/ears2.dmu.ac.uk\/?post_type=encyclopedia&#038;p=51475"},"modified":"2020-11-19T19:47:26","modified_gmt":"2020-11-19T19:47:26","slug":"forme-donde","status":"publish","type":"encyclopedia","link":"https:\/\/ears2.eu\/fr\/encyclopediafr\/forme-donde","title":{"rendered":"Forme d\u2019onde"},"content":{"rendered":"<p>C&rsquo;est un moyen courant de <a href=\"https:\/\/ears2.eu\/fr\/encyclopediafr\/representation-visuelle\" target=\"_self\" title=\"C&rsquo;est le fait de repr&eacute;senter des sons avec des formes, de fa&ccedil;on &agrave; cr&eacute;er une notation graphique des sons. Les formes d&rsquo;ondes sont les repr&eacute;sentations visuelles les plus courantes. Les Sonogrammes sont &eacute;galement assez communs. Mais il est aussi possible d&rsquo;inventer et de cr&eacute;er nos propres syst&egrave;mes de notation graphique. &nbsp;\" class=\"encyclopedia\">repr&eacute;sentation visuelle<\/a> des sons, qui d&eacute;taille la fa&ccedil;on dont les sons changent d&rsquo;<a href=\"https:\/\/ears2.eu\/fr\/encyclopediafr\/amplitude\" target=\"_self\" title=\"C&rsquo;est un terme technique qui d&eacute;signe le volume sonore. Plus l&rsquo;amplitude d&rsquo;une onde sonore est &eacute;lev&eacute;e, plus le son est puissant. L&rsquo;amplitude est relative &agrave; la somme des d&eacute;placements que la vibration de l&rsquo;onde sonore produit. Faites attention aux sons qui ont des grandes amplitudes, les sons puissants peuvent endommager vos oreilles de fa&ccedil;on PERMANENTE&hellip;\" class=\"encyclopedia\">Amplitude<\/a> dans la <a href=\"https:\/\/ears2.eu\/fr\/encyclopediafr\/duree\" target=\"_self\" title=\"C&rsquo;est la longueur dans le temps. Dans notre cas pour un son, ou un groupe de sons. &nbsp;\" class=\"encyclopedia\">dur&eacute;e<\/a>, et qui permet de visualiser clairement l&rsquo;<a href=\"https:\/\/ears2.eu\/fr\/encyclopediafr\/enveloppe\" target=\"_self\" title=\"C&rsquo;est la forme du son dans le temps. C&rsquo;est un param&egrave;tre clef du son, et le changement de l&rsquo;enveloppe peut radicalement transformer la fa&ccedil;on qu&rsquo;ont les choses de sonner. Une description plus scientifique des enveloppes des sons est propos&eacute;e dans ADSR (Attaque, D&eacute;clin, Soutien, Rel&acirc;che). &nbsp;\" class=\"encyclopedia\">Enveloppe<\/a> (<a href=\"https:\/\/ears2.eu\/fr\/encyclopediafr\/adsr\" target=\"_self\" title=\"ADSR (Attaque, D&eacute;clin, Soutien, Rel&acirc;che) est un terme employ&eacute; pour d&eacute;crire de fa&ccedil;on &eacute;volutive la forme des sons (voir aussi enveloppe). Les sons qui commencent de fa&ccedil;on tr&egrave;s directe (comme par exemple un click) peuvent &ecirc;tre d&eacute;crits comme ayant une attaque vive. Les sons qui commencent plus progressivement peuvent &ecirc;tre d&eacute;crits comme ayant une attaque&hellip;\" class=\"encyclopedia\">ADSR<\/a> (Attack, Decay, Sustain, Release \/ Attaque, D&eacute;clin, Soutien, Rel&acirc;che)) des sons.<\/p>\n<p>La repr&eacute;sentation en forme d&rsquo;onde est le plus souvent utilis&eacute;e dans les logiciels audio, mais ne fournit pas d&rsquo;information claire sur les <a href=\"https:\/\/ears2.eu\/fr\/encyclopediafr\/frequence\" target=\"_self\" title=\"C&rsquo;est un terme technique qui d&eacute;signe le Pitch (la hauteur). Plus la fr&eacute;quence d&rsquo;un son est haute, plus il montera en Pitch. La Fr&eacute;quence est mesur&eacute;e en Hertz (Hz). C&rsquo;est le nombre de cycles d&rsquo;ondes pas seconde. &nbsp;\" class=\"encyclopedia\">fr&eacute;quence<\/a>s qui composent le son. Un <a href=\"https:\/\/ears2.eu\/fr\/encyclopediafr\/sonogramme\" target=\"_self\" title=\"Un sonogramme permet de visualiser la distribution relative de l&rsquo;&eacute;nergie acoustique d&rsquo;un son dans le temps. Il peut former un outil visuel utile pour comprendre comment les sons fonctionnent et pour identifier les concentrations les plus pro&eacute;minentes de l&rsquo;&eacute;nergie acoustique (Partiels). Il peut aussi &ecirc;tre tr&egrave;s utile pour identifier et &eacute;liminer des portions ind&eacute;sirables d&rsquo;un&hellip;\" class=\"encyclopedia\">Sonogramme<\/a> peut &ecirc;tre utilis&eacute; pour visualiser la composition fr&eacute;quentielle des sons.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u2019est un moyen courant de repr\u00e9sentation visuelle des sons, qui d\u00e9taille la fa\u00e7on dont les sons changent d\u2019Amplitude dans la dur\u00e9e, et qui permet de visualiser clairement l\u2019Enveloppe (ADSR (Attack, Decay, Sustain, Release \/ Attaque, D\u00e9clin, Soutien, Rel\u00e2che)) des sons. La repr\u00e9sentation en forme d\u2019onde est le plus souvent utilis\u00e9e dans les logiciels audio, mais [&hellip;]<\/p>\n","protected":false},"author":8389,"template":"","encyclopedia-tag":[],"class_list":["post-51475","encyclopedia","type-encyclopedia","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Forme d\u2019onde - EARS 2<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ears2.eu\/encyclopedia\/waveform\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Forme d\u2019onde - EARS 2\" \/>\n<meta property=\"og:description\" content=\"C\u2019est un moyen courant de repr\u00e9sentation visuelle des sons, qui d\u00e9taille la fa\u00e7on dont les sons changent d\u2019Amplitude dans la dur\u00e9e, et qui permet de visualiser clairement l\u2019Enveloppe (ADSR (Attack, Decay, Sustain, Release \/ Attaque, D\u00e9clin, Soutien, Rel\u00e2che)) des sons. La repr\u00e9sentation en forme d\u2019onde est le plus souvent utilis\u00e9e dans les logiciels audio, mais [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ears2.eu\/encyclopedia\/waveform\" \/>\n<meta property=\"og:site_name\" content=\"EARS 2\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ears2.eu\\\/encyclopedia\\\/waveform\",\"url\":\"https:\\\/\\\/ears2.eu\\\/encyclopedia\\\/waveform\",\"name\":\"Forme d\u2019onde - EARS 2\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ears2.eu\\\/#website\"},\"datePublished\":\"2020-11-19T19:47:26+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/ears2.eu\\\/encyclopedia\\\/waveform#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/ears2.eu\\\/encyclopedia\\\/waveform\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/ears2.eu\\\/encyclopedia\\\/waveform#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/ears2.eu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Encyclopedia\",\"item\":\"https:\\\/\\\/ears2.eu\\\/encyclopedia\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Forme d\u2019onde\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/ears2.eu\\\/#website\",\"url\":\"https:\\\/\\\/ears2.eu\\\/\",\"name\":\"EARS 2\",\"description\":\"Make Music with Sounds\",\"publisher\":{\"@id\":\"https:\\\/\\\/ears2.eu\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/ears2.eu\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/ears2.eu\\\/#organization\",\"name\":\"EARS 2\",\"url\":\"https:\\\/\\\/ears2.eu\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/ears2.eu\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/ears2.eu\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/Logo.png\",\"contentUrl\":\"https:\\\/\\\/ears2.eu\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/Logo.png\",\"width\":1346,\"height\":573,\"caption\":\"EARS 2\"},\"image\":{\"@id\":\"https:\\\/\\\/ears2.eu\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Forme d\u2019onde - EARS 2","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ears2.eu\/encyclopedia\/waveform","og_locale":"fr_FR","og_type":"article","og_title":"Forme d\u2019onde - EARS 2","og_description":"C\u2019est un moyen courant de repr\u00e9sentation visuelle des sons, qui d\u00e9taille la fa\u00e7on dont les sons changent d\u2019Amplitude dans la dur\u00e9e, et qui permet de visualiser clairement l\u2019Enveloppe (ADSR (Attack, Decay, Sustain, Release \/ Attaque, D\u00e9clin, Soutien, Rel\u00e2che)) des sons. La repr\u00e9sentation en forme d\u2019onde est le plus souvent utilis\u00e9e dans les logiciels audio, mais [&hellip;]","og_url":"https:\/\/ears2.eu\/encyclopedia\/waveform","og_site_name":"EARS 2","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/ears2.eu\/encyclopedia\/waveform","url":"https:\/\/ears2.eu\/encyclopedia\/waveform","name":"Forme d\u2019onde - EARS 2","isPartOf":{"@id":"https:\/\/ears2.eu\/#website"},"datePublished":"2020-11-19T19:47:26+00:00","breadcrumb":{"@id":"https:\/\/ears2.eu\/encyclopedia\/waveform#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ears2.eu\/encyclopedia\/waveform"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/ears2.eu\/encyclopedia\/waveform#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/ears2.eu\/"},{"@type":"ListItem","position":2,"name":"Encyclopedia","item":"https:\/\/ears2.eu\/encyclopedia"},{"@type":"ListItem","position":3,"name":"Forme d\u2019onde"}]},{"@type":"WebSite","@id":"https:\/\/ears2.eu\/#website","url":"https:\/\/ears2.eu\/","name":"EARS 2","description":"Make Music with Sounds","publisher":{"@id":"https:\/\/ears2.eu\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ears2.eu\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/ears2.eu\/#organization","name":"EARS 2","url":"https:\/\/ears2.eu\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/ears2.eu\/#\/schema\/logo\/image\/","url":"https:\/\/ears2.eu\/wp-content\/uploads\/2019\/06\/Logo.png","contentUrl":"https:\/\/ears2.eu\/wp-content\/uploads\/2019\/06\/Logo.png","width":1346,"height":573,"caption":"EARS 2"},"image":{"@id":"https:\/\/ears2.eu\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/ears2.eu\/fr\/wp-json\/wp\/v2\/encyclopedia\/51475","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ears2.eu\/fr\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/ears2.eu\/fr\/wp-json\/wp\/v2\/types\/encyclopedia"}],"author":[{"embeddable":true,"href":"https:\/\/ears2.eu\/fr\/wp-json\/wp\/v2\/users\/8389"}],"wp:attachment":[{"href":"https:\/\/ears2.eu\/fr\/wp-json\/wp\/v2\/media?parent=51475"}],"wp:term":[{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/ears2.eu\/fr\/wp-json\/wp\/v2\/encyclopedia-tag?post=51475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}