{"id":21342,"date":"2016-07-31T17:28:59","date_gmt":"2016-07-31T15:28:59","guid":{"rendered":"https:\/\/frank-lovisolo.fr\/WordPress\/?p=21342"},"modified":"2023-09-04T10:06:08","modified_gmt":"2023-09-04T08:06:08","slug":"calculs-audio-article-qui-compte","status":"publish","type":"post","link":"https:\/\/frank-lovisolo.fr\/WordPress\/calculs-audio-article-qui-compte\/","title":{"rendered":"L&rsquo;article qui compte."},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><h3><span class=\"ez-toc-section\" id=\"calculs-audio\"><\/span><span style=\"color: #ffffff;\">Calculs audio<span style=\"font-size: 20px;\"><a href=\"#com\"><img decoding=\"async\" class=\"wp-image-15068 size-full alignright\" src=\"https:\/\/frank-lovisolo.fr\/WordPress\/wp-content\/uploads\/2015\/06\/ComRouge.jpg\" alt=\"ComGris\" height=\"20\" title=\"-\"><\/a><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table style=\"width: 100%; background-color: #000000;\">\n<tbody>\n<tr>\n<td style=\"width: 25%; text-align: center;\">\n<h5><span class=\"ez-toc-section\" id=\"-estimation-de-la-distorsion\"><\/span><span style=\"color: #00ffff; font-size: 12px;\"><strong><a style=\"color: #00ffff;\" href=\"#dist1\"><span style=\"background-color: #000000;\">\u00a0 Estimation de la distorsion \u00a0<\/span><\/a><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h5>\n<\/td>\n<td style=\"width: 25%; text-align: center;\">\n<h5><span class=\"ez-toc-section\" id=\"-loi-dohm\"><\/span><span style=\"color: #00ffff; font-size: 12px;\"><strong><a style=\"color: #00ffff;\" href=\"#loiohm\"><span style=\"background-color: #000000;\">\u00a0 \u00a0 \u00a0 Loi d&rsquo;Ohm \u00a0 \u00a0 \u00a0<\/span><\/a><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h5>\n<\/td>\n<td style=\"width: 25%; text-align: center;\" colspan=\"2\">\n<div><span style=\"color: #00ffff; font-size: 12px;\"><strong><a style=\"color: #00ffff;\" href=\"#zsa\"><span style=\"background-color: #000000;\">\u00a0Imp\u00e9dance de sortie <\/span><\/a><\/strong><\/span><\/div>\n<div><span style=\"color: #00ffff; font-size: 12px;\"><strong><a style=\"color: #00ffff;\" href=\"#zsa\"><span style=\"background-color: #000000;\">d&rsquo;un amplificateur\u00a0<\/span><\/a><\/strong><\/span><\/div>\n<\/td>\n<td style=\"width: 25%; text-align: center;\" colspan=\"2\">\n<div><span style=\"color: #00ffff; font-size: 12px;\"><strong><a style=\"color: #00ffff;\" href=\"#crpdea\"><span style=\"background-color: #000000;\">\u00a0HP : Calcul avec rendement, <\/span><\/a><\/strong><\/span><\/div>\n<div><span style=\"color: #00ffff; font-size: 12px;\"><strong><a style=\"color: #00ffff;\" href=\"#crpdea\"><span style=\"background-color: #000000;\">puissance et distance \u00a0<\/span><\/a><\/strong><\/span><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\">\n<hr \/>\n<p><a id=\"dist1\"><\/a><style>@media (max-width:480px){#cp_calculatedfieldsf_pform_1{min-height:500px;}}@media (max-width:768px){#cp_calculatedfieldsf_pform_1{min-height:1448px;}}@media (max-width:1024px){#cp_calculatedfieldsf_pform_1{min-height:1411px;}}@media (min-width:1024px){#cp_calculatedfieldsf_pform_1{min-height:1900px;}}<\/style><form name=\"cp_calculatedfieldsf_pform_1\" id=\"cp_calculatedfieldsf_pform_1\" action=\"https:\/\/frank-lovisolo.fr\/WordPress\/calculs-audio-article-qui-compte\/\" method=\"post\" enctype=\"multipart\/form-data\" onsubmit=\"return fbuilderjQuery.fbuilder.doValidate(this);\" class=\"cff-form no-prefetch  cff-form-11 cp_cff_elegant\"  data-nonce=\"a2cfe37ef6\">\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_pform_psequence\" value=\"_1\" \/>\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_id\" value=\"11\" \/>\n<input type=\"hidden\" name=\"cp_ref_page\" value=\"https:\/\/frank-lovisolo.fr\/WordPress\" \/>\n<pre style=\"display:none !important;\"><script data-category=\"functional\" type=\"text\/javascript\">form_structure_1=[[{\"form_identifier\":\"\",\"name\":\"fieldname13\",\"shortlabel\":\"\",\"index\":0,\"ftype\":\"fMedia\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"\",\"sMediaType\":\"image\",\"data\":{\"image\":{\"sWidth\":\"700\",\"sHeight\":\"300\",\"sSrc\":\"http:\\\/\\\/frank-lovisolo.fr\\\/WordPress\\\/wp-content\\\/uploads\\\/2016\\\/08\\\/FFT001.jpg\",\"sAlt\":\"\",\"sLink\":\"\",\"sTarget\":\"\",\"sFigcaption\":\"\"},\"audio\":{\"sWidth\":\"\",\"sSrc\":\"\",\"sSrcAlt\":\"\",\"sControls\":1,\"sLoop\":0,\"sAutoplay\":0,\"sMuted\":0,\"sPreload\":\"auto\",\"sFallback\":\"\",\"sFigcaption\":\"\"},\"video\":{\"sWidth\":\"\",\"sHeight\":\"\",\"sSrc\":\"\",\"sSrcAlt\":\"\",\"sPoster\":\"\",\"sControls\":1,\"sLoop\":0,\"sAutoplay\":0,\"sMuted\":0,\"sPreload\":\"auto\",\"sFallback\":\"\",\"sFigcaption\":\"\"}},\"fBuild\":{},\"parent\":\"\"},{\"form_identifier\":\"\",\"name\":\"fieldname25\",\"shortlabel\":\"\",\"index\":1,\"ftype\":\"fCommentArea\",\"userhelp\":\"Find the levels of the fundamental and the harmonics, in decibels, on the graph FFT of your application. 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I^2\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"fieldname4*(fieldname5*fieldname5)\",\"suffix\":\" W\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"dependencies\":[{\"rule\":\"\",\"complex\":false,\"fields\":[\"\"]}],\"readonly\":true,\"hidefield\":false,\"fBuild\":{}},{\"form_identifier\":\"\",\"name\":\"fieldname16\",\"shortlabel\":\"\",\"index\":17,\"ftype\":\"fCalculated\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"column3\",\"title\":\"P = I^2 \\\/ R\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"(fieldname3*fieldname3)\\\/fieldname4\",\"suffix\":\" W\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"dependencies\":[{\"rule\":\"\",\"complex\":false,\"fields\":[\"\"]}],\"readonly\":true,\"hidefield\":false,\"fBuild\":{}},{\"form_identifier\":\"\",\"name\":\"fieldname17\",\"shortlabel\":\"\",\"index\":18,\"ftype\":\"fCalculated\",\"userhelp\":\"\",\"userhelpTooltip\":false,\"csslayout\":\"column3\",\"title\":\"P = U \\\/ I\",\"predefined\":\"\",\"required\":false,\"size\":\"medium\",\"toolbar\":\"default|mathematical\",\"eq\":\"(fieldname3*fieldname5)\",\"suffix\":\" W\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"dependencies\":[{\"rule\":\"\",\"complex\":false,\"fields\":[\"\"]}],\"readonly\":true,\"hidefield\":false,\"fBuild\":{}}],{\"0\":{\"title\":\"P U R I\",\"description\":\"Tous les calculs\",\"formlayout\":\"top_aligned\",\"formtemplate\":\"cp_cff_natural\",\"evalequations\":1,\"autocomplete\":1},\"formid\":\"cp_calculatedfieldsf_pform_4\"}];<\/script><\/pre>\n<div id=\"fbuilder\">\n\t\t<div id=\"fbuilder_4\">\n\t\t<div id=\"formheader_4\"><\/div>\n\t\t<div id=\"fieldlist_4\"><\/div>\n\t\t<div class=\"clearer\"><\/div>\n\t<\/div>\n<\/div>\n\t<div id=\"cp_subbtn_4\" class=\"cp_subbtn\" style=\"display:none;\"><\/div><div class=\"clearer\"><\/div>\n\t<input type=\"hidden\" id=\"_cpcff_public_nonce\" name=\"_cpcff_public_nonce\" value=\"8ed4135aff\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/WordPress\/wp-json\/wp\/v2\/posts\/21342\" \/><input type=\"hidden\" name=\"cff_form_start_time\" value=\"pRi2UcYOHU+vbBRuAEqa2w==\"><\/form>\n\t<\/p>\n<p style=\"text-align: left;\">La <b>loi d&rsquo;Ohm<\/b> est une <a title=\"Loi physique\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Loi_physique\" target=\"_blank\" rel=\"noopener\">loi physique<\/a> qui lie l&rsquo;<a class=\"mw-redirect\" title=\"Intensit\u00e9 du courant \u00e9lectrique\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Intensit%C3%A9_du_courant_%C3%A9lectrique\" target=\"_blank\" rel=\"noopener\">intensit\u00e9 du courant \u00e9lectrique<\/a> traversant un <a title=\"Dip\u00f4le \u00e9lectrique\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Dip%C3%B4le_%C3%A9lectrique\" target=\"_blank\" rel=\"noopener\">dip\u00f4le \u00e9lectrique<\/a> \u00e0 la <a title=\"Tension \u00e9lectrique\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Tension_%C3%A9lectrique\" target=\"_blank\" rel=\"noopener\">tension<\/a> entre ses bornes et permet de d\u00e9terminer la valeur d&rsquo;une <a title=\"R\u00e9sistance (\u00e9lectricit\u00e9)\" href=\"https:\/\/fr.wikipedia.org\/wiki\/R%C3%A9sistance_(%C3%A9lectricit%C3%A9)\" target=\"_blank\" rel=\"noopener\">r\u00e9sistance<\/a>. La loi d&rsquo;Ohm a \u00e9t\u00e9 ainsi nomm\u00e9e en r\u00e9f\u00e9rence au <a title=\"Cat\u00e9gorie:Physicien allemand\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Cat%C3%A9gorie:Physicien_allemand\" target=\"_blank\" rel=\"noopener\">physicien allemand<\/a> <a class=\"mw-redirect\" title=\"Georg Simon Ohm\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Georg_Simon_Ohm\" target=\"_blank\" rel=\"noopener\">Georg Simon Ohm<\/a> qui la publie en 1827, dans son \u0153uvre <i><span class=\"lang-de\" lang=\"de\" xml:lang=\"de\">Die galvanichte Kette matematisch bearbeitet<\/span><\/i>\u00a0\u00a0(Th\u00e9orie math\u00e9matique du circuit galvanique).<\/p>\n<hr \/>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-15000\" title=\"Calculs audio\" src=\"https:\/\/frank-lovisolo.fr\/WordPress\/wp-content\/uploads\/2015\/06\/Lorage-N\u00b0002-560x374.jpg\" alt=\"Calculs audio\" width=\"235\" height=\"157\" srcset=\"https:\/\/frank-lovisolo.fr\/WordPress\/wp-content\/uploads\/2015\/06\/Lorage-N\u00b0002-560x374.jpg 560w, https:\/\/frank-lovisolo.fr\/WordPress\/wp-content\/uploads\/2015\/06\/Lorage-N\u00b0002.jpg 1024w, https:\/\/frank-lovisolo.fr\/WordPress\/wp-content\/uploads\/2015\/06\/Lorage-N\u00b0002-225x150.jpg 225w, https:\/\/frank-lovisolo.fr\/WordPress\/wp-content\/uploads\/2015\/06\/Lorage-N\u00b0002-150x100.jpg 150w\" sizes=\"auto, (max-width: 235px) 100vw, 235px\" \/>L\u2019<strong>\u00e9lectricit\u00e9<\/strong> est l&rsquo;effet du d\u00e9placement de particules charg\u00e9es, \u00e0 l\u2019int\u00e9rieur d&rsquo;un \u00ab conducteur \u00bb, sous l&rsquo;effet d&rsquo;une diff\u00e9rence de potentiel aux extr\u00e9mit\u00e9s de ce conducteur.<\/p>\n<p style=\"text-align: justify;\">Ce ph\u00e9nom\u00e8ne physique est pr\u00e9sent dans de nombreux contextes\u00a0: l&rsquo;\u00e9lectricit\u00e9 constitue aussi bien l&rsquo;influx nerveux des \u00eatres vivants que les \u00e9clairs d&rsquo;un orage. Elle est largement utilis\u00e9e dans les soci\u00e9t\u00e9s d\u00e9velopp\u00e9es pour transporter de grandes quantit\u00e9s d&rsquo;\u00e9nergie facilement utilisable.<\/p>\n<p><a href=\"https:\/\/fr.wikipedia.org\/wiki\/%C3%89lectricit%C3%A9\" target=\"_blank\" rel=\"noopener noreferrer\">La suite &gt;&gt;&gt;&gt;<\/a><\/p>\n<p style=\"text-align: justify;\">L\u2019<b>acoustique<\/b> est la science du son, ce qui inclut sa production, son contr\u00f4le, sa transmission, sa r\u00e9ception et ses effets. Elle fait notamment appel \u00e0 des notions de m\u00e9canique des fluides, de m\u00e9canique vibratoire, dem\u00e9canique du solide d\u00e9formable et de thermodynamique.<\/p>\n<p style=\"text-align: justify;\">Le terme acoustique fut introduit par Joseph Sauveur (1653-1716)\u00a0: il est construit \u00e0 partir du terme \u1f00\u03ba\u03bf\u03c5\u03c3\u03c4\u03b9\u03ba\u03cc\u03c2 [akoustikos] provenant du grec ancien signifiant \u00ab\u00a0de l&rsquo;ou\u00efe\u00a0\u00bb, lui-m\u00eame provenant de \u1f00\u03ba\u03bf\u03cd\u03b5\u03b9\u03bd [akouein], signifiant \u00ab\u00a0entendre\u00a0\u00bb<sup id=\"cite_ref-1\" class=\"reference\">1<\/sup>. Depuis, le mot acoustique englobe en physique toutes les ondes m\u00e9caniques au sein des gaz, des liquides, mais \u00e9galement au sein des solides, et ce quelle que soit la plage de fr\u00e9quences consid\u00e9r\u00e9e (lesinfrasons, les sons et les ultrasons).<\/p>\n<p style=\"text-align: justify;\">L&rsquo;acoustique comprend de nombreuses ramifications parmi lesquelles on rencontre l&rsquo;\u00e9lectroacoustique (microphones, haut-parleurs), l&rsquo;audition, l\u2019acoustique musicale,\u00a0<abbr class=\"abbr\" title=\"et cetera\">etc.<\/abbr><\/p>\n<p style=\"text-align: justify;\">L&rsquo;acoustique a des applications dans les domaines des sciences de la terre et de l&rsquo;atmosph\u00e8re, des sciences de l&rsquo;ing\u00e9nieur, des sciences de la vie et de la sant\u00e9, ainsi que dans les sciences humaines et sociales.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/fr.wikipedia.org\/wiki\/Acoustique\" target=\"_blank\" rel=\"noopener noreferrer\">La suite &gt;&gt;&gt;&gt;&gt;<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #ffffff;\"><a id=\"com\"><\/a>Calculs audio Calculs audio Calculs audio Calculs audio Calculs audio<\/span><\/p>\n<p><a href=\"https:\/\/frank-lovisolo.fr\/WordPress\/\">https:\/\/frank-lovisolo.fr\/WordPress\/<\/a><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-69dbc6283d383\" class=\"ez-toc-cssicon-toggle-label\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69dbc6283d383\" checked \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/frank-lovisolo.fr\/WordPress\/calculs-audio-article-qui-compte\/#calculs-audio\" >Calculs audio<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/frank-lovisolo.fr\/WordPress\/calculs-audio-article-qui-compte\/#-estimation-de-la-distorsion\" >\u00a0 Estimation de la distorsion \u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/frank-lovisolo.fr\/WordPress\/calculs-audio-article-qui-compte\/#-loi-dohm\" >\u00a0 \u00a0 \u00a0 Loi d&rsquo;Ohm \u00a0 \u00a0 \u00a0<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\u2026 <a class=\"continue-reading-link\" href=\"https:\/\/frank-lovisolo.fr\/WordPress\/calculs-audio-article-qui-compte\/\">Suite &#8211; Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":21491,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2020],"tags":[2025,2023,1591,2043,2027,2024,2031,1999,2026],"class_list":["post-21342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-calculs-audios","tag-ampere","tag-antimanuel-de-sonorisation","tag-decibels","tag-distorsion-harmonique","tag-hp","tag-ohm","tag-thd","tag-uri","tag-volt"],"_links":{"self":[{"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/posts\/21342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/comments?post=21342"}],"version-history":[{"count":0,"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/posts\/21342\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/media\/21491"}],"wp:attachment":[{"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/media?parent=21342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/categories?post=21342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/frank-lovisolo.fr\/WordPress\/wp-json\/wp\/v2\/tags?post=21342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}