{"version":"1.0","provider_name":"mp4gain.com","provider_url":"https:\/\/mp4gain.com\/mp4gain","author_name":"R. Arias","author_url":"https:\/\/mp4gain.com\/mp4gain\/author\/mp4gain\/","title":"m4a, characteristics of the m4a format - mp4gain.com","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"qtx0Mqswtk\"><a href=\"https:\/\/mp4gain.com\/mp4gain\/m4a-characteristics-of-the-m4a-format\/\">m4a, characteristics of the m4a format<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/mp4gain.com\/mp4gain\/m4a-characteristics-of-the-m4a-format\/embed\/#?secret=qtx0Mqswtk\" width=\"600\" height=\"338\" title=\"&#8220;m4a, characteristics of the m4a format&#8221; &#8212; mp4gain.com\" data-secret=\"qtx0Mqswtk\" 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:\/\/mp4gain.com\/mp4gain\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"The M4A format is short for MPEG-4 part 14 and is a type of file created by Apple in 2004 from the QuickTime file format. It is a digital media container used to store audio components, but it can also contain other data (for example, images). The M4A is a file extension for an audio file encoded with Advanced Audio Encryption (AAC) which is lossy compression. M4A was generally intended as the successor to MP3, which was not originally designed for audio only, but was layer III in an MPEG 1 or 2 video file.","thumbnail_url":"http:\/\/mp4gain.com\/mp4gain\/wp-content\/uploads\/2020\/03\/175602-que-es-bitrate.jpg"}