{"id":972,"date":"2017-08-28T11:26:59","date_gmt":"2017-08-28T10:26:59","guid":{"rendered":"http:\/\/wfs-diy.net\/?p=972"},"modified":"2017-08-28T11:26:59","modified_gmt":"2017-08-28T10:26:59","slug":"front-fills-et-scene-de-plein-pied","status":"publish","type":"post","link":"https:\/\/wfs.pixetbel.org\/index.php\/2017\/08\/28\/front-fills-et-scene-de-plein-pied\/","title":{"rendered":"Front-fills et sc\u00e8ne de plain-pied"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-980\" src=\"https:\/\/wfs-diy.net\/wp-content\/uploads\/2017\/08\/imag0506-e1503916204726.jpg\" alt=\"imag0506.jpg\" width=\"4113\" height=\"1787\" \/>Lors de notre r\u00e9sidence estivale au Th\u00e9\u00e2tre Garonne nous avons eu l&#8217;occasion de tester nos &#8220;<em>front-fills<\/em>&#8221; sur une sc\u00e8ne de plain-pied. Ces enceintes sont coaxiales avec une ouverture de 120\u00b0. Lorsque ces enceintes sont pos\u00e9es au sol il y a d&#8217;importantes r\u00e9flexions qui colorent et brouillent le son diffus\u00e9.<\/p>\n<p><!--more--><\/p>\n<p>Les enceintes utilis\u00e9es ici sont des <a href=\"http:\/\/www.ks-audio.de\/index.php\/en\/produkte-6\/tops\/fullrange-powered\/cpd-04\" target=\"_blank\" rel=\"noopener\">KS-Audio CPD04<\/a> ; petits cubes de 15cm de c\u00f4t\u00e9 avec un haut-parleur de 4,5 pouce et un autre de 1 pouce. Ces enceintes sont auto-amplifi\u00e9es avec un filtre num\u00e9rique FIR et une bi-amplification classe-D (50W + 25W). L&#8217;ouverture donn\u00e9e par le fabricant est de 120\u00b0 conique.<\/p>\n<p>Voici une s\u00e9rie de mesures avec le micro plac\u00e9 \u00e0 1m de l&#8217;enceinte, au premier rang (environ 2,50m) et au 5e rang du gradin. Certaines mesures sont effectu\u00e9es avec un tissus plac\u00e9 devant les enceintes afin d&#8217;absorber une partie de premi\u00e8res r\u00e9flexions.<br \/>\nDans le cas de l&#8217;enceinte sur pied (axe \u00e0 1,20m du sol) et le micro \u00e0 1m nous avons effectu\u00e9 une seule mesure sans le tapis.<\/p>\n<div id='gallery-1' class='gallery galleryid-972 gallery-columns-2 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/imag0502\/'><img loading=\"lazy\" decoding=\"async\" width=\"574\" height=\"1024\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0502-574x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0502-574x1024.jpg 574w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0502-168x300.jpg 168w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0502-768x1370.jpg 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0502-861x1536.jpg 861w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0502-1148x2048.jpg 1148w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0502-scaled.jpg 1435w\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/imag0504\/'><img loading=\"lazy\" decoding=\"async\" width=\"574\" height=\"1024\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0504-574x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0504-574x1024.jpg 574w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0504-168x300.jpg 168w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0504-768x1370.jpg 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0504-861x1536.jpg 861w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0504-1148x2048.jpg 1148w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0504-scaled.jpg 1435w\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/imag0511\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"574\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0511-1024x574.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0511-1024x574.jpg 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0511-300x168.jpg 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0511-768x431.jpg 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0511-1536x861.jpg 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0511-2048x1148.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/imag0505\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"574\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0505-1024x574.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0505-1024x574.jpg 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0505-300x168.jpg 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0505-768x431.jpg 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0505-1536x861.jpg 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0505-2048x1148.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/imag0509\/'><img loading=\"lazy\" decoding=\"async\" width=\"574\" height=\"1024\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0509-574x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0509-574x1024.jpg 574w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0509-168x300.jpg 168w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0509-768x1370.jpg 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0509-861x1536.jpg 861w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0509-1148x2048.jpg 1148w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0509-scaled.jpg 1435w\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/imag0501\/'><img loading=\"lazy\" decoding=\"async\" width=\"574\" height=\"1024\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0501-574x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0501-574x1024.jpg 574w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0501-168x300.jpg 168w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0501-768x1370.jpg 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0501-861x1536.jpg 861w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0501-1148x2048.jpg 1148w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/imag0501-scaled.jpg 1435w\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p>Voici pour commencer le spectre et la r\u00e9ponse impulsionnelle \u00e0 1m avec et sans tapis.<\/p>\n<div id='gallery-2' class='gallery galleryid-972 gallery-columns-2 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-1m-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-2-929\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-929'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Micro \u00e0 1m \/ R\u00e9ponse impulsionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-1m-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-2-930\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1m-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-930'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Micro \u00e0 1m \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-1m-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-2-939\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-939'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Micro \u00e0 1m \/ R\u00e9ponse implusionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-1m-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-2-940\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1m-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-940'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Micro \u00e0 1m \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-1m_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-2-949\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-949'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ Micro \u00e0 1m rang \/ R\u00e9ponse implusionnelle\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-1m_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-2-950\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1m_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-950'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ Micro \u00e0 1m rang \/ Spectre\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>M\u00eame chose avec le micro plac\u00e9 au 1er rang :<\/p>\n<div id='gallery-3' class='gallery galleryid-972 gallery-columns-2 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-rang1-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-3-935\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-935'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Micro au 1er rang \/ R\u00e9ponse impulsionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-rang1-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-3-936\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang1-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-936'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Micro au 1e rang \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-rang1-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-3-945\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-945'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Micro au 1er rang \/ R\u00e9ponse impulsionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-rang1-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-3-946\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang1-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-946'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Micro au 1er rang  \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-rang1-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-3-953\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-953'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ Micro au 1er rang \/ R\u00e9ponse implusionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-rang1-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-3-954\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang1-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-3-954'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ Micro au 1er rang \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>Et finalement au 5e rang :<\/p>\n<div id='gallery-4' class='gallery galleryid-972 gallery-columns-2 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-rang5-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-4-937\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-4-937'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Micro au 5e rang \/ R\u00e9ponse impulsionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-rang5-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-4-938\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-rang5-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-4-938'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Micro au 5e rang \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-rang5-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-4-947\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-4-947'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Micro au 5e rang \/ R\u00e9ponse impulsionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-rang5-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-4-948\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-rang5-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-4-948'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Micro au 5e rang \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-rang5-astap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-4-955\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-4-955'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ Micro au 5e rang \/ R\u00e9ponse implusionnelle avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-rang5-astap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-4-956\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-rang5-astap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-4-956'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ Micro au 5e rang \/ Spectre avec et sans le tapis\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>Si on pr\u00e9sente maintenant ces mesures en fonction de la distance on obtient deux s\u00e9ries avec et sans tapis pour chaque hauteur.<\/p>\n<p>Enceinte pos\u00e9e au sol (axe \u00e0 10cm) :<\/p>\n<div id='gallery-5' class='gallery galleryid-972 gallery-columns-2 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-1mrang1rang5_stap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-5-933\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-5-933'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Sans tapis \/ R\u00e9ponse imulsionnelle en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-1mrang1rang5_stap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-5-934\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_stap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-5-934'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Sans tapis \/ Spectre en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-1mrang1rang5_atap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-5-931\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-5-931'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Avec tapis \/ R\u00e9ponse imulsionnelle en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/10cm-1mrang1rang5_atap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-5-932\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/10cm-1mrang1rang5_atap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-5-932'>\n\t\t\t\tEnceinte pos\u00e9e au sol (axe \u00e0 10cm) \/ Avec tapis \/ Spectre en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>Enceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) :<\/p>\n<div id='gallery-6' class='gallery galleryid-972 gallery-columns-2 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-1mrang1rang5_stap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-6-943\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-6-943'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Sans tapis \/ R\u00e9ponse imulsionnelle en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-1mrang1rang5_stap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-6-944\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_stap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-6-944'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Sans tapis \/ Spectre en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-1mrang1rang5_atap_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-6-941\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-6-941'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Avec tapis \/ R\u00e9ponse imulsionnelle en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/17cm-1mrang1rang5_atap_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-6-942\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/17cm-1mrang1rang5_atap_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-6-942'>\n\t\t\t\tEnceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e (axe \u00e0 17cm) \/ Avec tapis \/ Spectre en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>Enceinte sur pied (axe \u00e0 1,20m) :<\/p>\n<div id='gallery-7' class='gallery galleryid-972 gallery-columns-2 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-1mrang1rang5_ir\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"291\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_ir-1024x291.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-7-951\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_ir-1024x291.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_ir-300x85.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_ir-768x218.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_ir-1536x436.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_ir.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-7-951'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ R\u00e9ponse imulsionnelle en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/wfs.pixetbel.org\/120cm-1mrang1rang5_spectr\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"301\" src=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_spectr-1024x301.png\" class=\"attachment-large size-large\" alt=\"\" aria-describedby=\"gallery-7-952\" srcset=\"https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_spectr-1024x301.png 1024w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_spectr-300x88.png 300w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_spectr-768x226.png 768w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_spectr-1536x451.png 1536w, https:\/\/wfs.pixetbel.org\/wp-content\/uploads\/2017\/08\/120cm-1mrang1rang5_spectr.png 1539w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-7-952'>\n\t\t\t\tEnceinte sur pied (axe \u00e0 120cm) \/ Spectre en fonction de la distance\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>On constate que le tapis absorbe effectivement les premi\u00e8res r\u00e9flexions au sol. En fonction du placement de l&#8217;enceinte dans la salle on trouve aussi des r\u00e9flexions marqu\u00e9es sur le plafond et les murs lat\u00e9raux. Nous avons plac\u00e9 des tissus absorbants sur les c\u00f4t\u00e9s et le dessus des enceintes pour d\u00e9tecter sur quelle(s) surface(s) les r\u00e9flexions se produisaient.<br \/>\nLe spectre est moins accident\u00e9 avec le tissus absorbant au sol. On voit que les creux se d\u00e9placent en fonction de la position de mesure. Le trajet parcouru par l&#8217;onde r\u00e9fl\u00e9chie d\u00e9pend de l&#8217;incidence.<br \/>\nOn constate \u00e9galement que le spectre change en fonction de la hauteur de l&#8217;enceinte pour les m\u00eames raisons. La coloration para\u00eet plus forte pour une enceinte l\u00e9g\u00e8rement sur\u00e9lev\u00e9e que pos\u00e9e au sol car le premier creux est plus bas.<\/p>\n<p>L&#8217;option la plus int\u00e9ressante semble dans le cas d&#8217;une sc\u00e8ne de plein-pied de placer les enceintes pos\u00e9es sur le sol avec un absorbant devant elles pour limiter les r\u00e9flexions.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1730\" src=\"https:\/\/wfs-diy.net\/wp-content\/uploads\/2018\/04\/imag0665.jpg\" alt=\"IMAG0665\" width=\"1920\" height=\"1080\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lors de notre r\u00e9sidence estivale au Th\u00e9\u00e2tre Garonne nous avons eu l&#8217;occasion de tester nos &#8220;front-fills&#8221; sur une sc\u00e8ne de plain-pied. Ces enceintes sont coaxiales avec une ouverture de 120\u00b0. Lorsque ces enceintes sont pos\u00e9es au sol il y a d&#8217;importantes r\u00e9flexions qui colorent et brouillent le son diffus\u00e9.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,7,9,11],"tags":[],"class_list":["post-972","post","type-post","status-publish","format-standard","hentry","category-experimentations","category-francais","category-mise-en-oeuvre-fr","category-plan-de-diffusion-fr"],"_links":{"self":[{"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/posts\/972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/comments?post=972"}],"version-history":[{"count":0,"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/posts\/972\/revisions"}],"wp:attachment":[{"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/media?parent=972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/categories?post=972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wfs.pixetbel.org\/index.php\/wp-json\/wp\/v2\/tags?post=972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}