{"version":"1.0","provider_name":"Les aventures de Jos\u00e9 ...","provider_url":"https:\/\/joselinformatique.obip.fr","author_name":"pierre","author_url":"https:\/\/joselinformatique.obip.fr\/index.php\/author\/pierre\/","title":"Hi-fi de g\u00e9nie - Les aventures de Jos\u00e9 ...","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"T0FBstP6yr\"><a href=\"https:\/\/joselinformatique.obip.fr\/index.php\/2025\/07\/27\/hifi-de-genie\/\">Hi-fi de g\u00e9nie<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/joselinformatique.obip.fr\/index.php\/2025\/07\/27\/hifi-de-genie\/embed\/#?secret=T0FBstP6yr\" width=\"600\" height=\"338\" title=\"\u00ab\u00a0Hi-fi de g\u00e9nie\u00a0\u00bb &#8212; Les aventures de Jos\u00e9 ...\" data-secret=\"T0FBstP6yr\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/joselinformatique.obip.fr\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/joselinformatique.obip.fr\/wp-content\/uploads\/2025\/07\/admin-ajax.jpeg","thumbnail_width":600,"thumbnail_height":450,"description":"Pour les images, j\u2019ai \u00e9tudi\u00e9 un m\u00e9canisme de compression avec perte. Pour le son, l\u2019approche sera diff\u00e9rente. Bien que son histoire soit int\u00e9ressante, je ne parlerai pas du MP3 ni des formats de compression avec perte. Les strat\u00e9gies sans perte sont aussi int\u00e9ressantes. Nous l\u2019avons vu dans un article pr\u00e9c\u00e9dent, selon le th\u00e9or\u00e8me de Shannon-Nyquist [&hellip;]"}