{"id":1593,"date":"2020-09-15T20:36:15","date_gmt":"2020-09-15T18:36:15","guid":{"rendered":"http:\/\/www.gistlabs.net\/weblogs\/?p=1593"},"modified":"2026-03-29T21:06:28","modified_gmt":"2026-03-29T19:06:28","slug":"how-to-convert-mp4-video-files-to-mp3-audio","status":"publish","type":"post","link":"https:\/\/www.gistlabs.net\/weblogs\/how-to-convert-mp4-video-files-to-mp3-audio\/","title":{"rendered":"How to convert mp4 video files to mp3 audio"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.gistlabs.net\/weblogs\/wp-content\/uploads\/2020\/09\/ffmpeg_logo-1024x482.jpg\" alt=\"ffmpeg logo\" class=\"wp-image-1594\" width=\"559\" height=\"263\" srcset=\"https:\/\/www.gistlabs.net\/weblogs\/wp-content\/uploads\/2020\/09\/ffmpeg_logo-1024x482.jpg 1024w, https:\/\/www.gistlabs.net\/weblogs\/wp-content\/uploads\/2020\/09\/ffmpeg_logo-300x141.jpg 300w, https:\/\/www.gistlabs.net\/weblogs\/wp-content\/uploads\/2020\/09\/ffmpeg_logo-768x362.jpg 768w, https:\/\/www.gistlabs.net\/weblogs\/wp-content\/uploads\/2020\/09\/ffmpeg_logo-847x399.jpg 847w, https:\/\/www.gistlabs.net\/weblogs\/wp-content\/uploads\/2020\/09\/ffmpeg_logo.jpg 1380w\" sizes=\"auto, (max-width: 559px) 100vw, 559px\" \/><\/figure>\n\n\n\n<p>Extraire la piste audio d&#8217;une vid\u00e9o MP4 et la convertir en MP3 avec <strong>ffmpeg<\/strong> \u2014 en une ligne, pour un fichier ou pour tout un dossier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Un seul fichier<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>ffmpeg -i video.mp4 -acodec libmp3lame -q:a 2 audio.mp3<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Tous les MP4 d&#8217;un dossier<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>for f in *.mp4 ; do ffmpeg -i \"$f\" -acodec libmp3lame -q:a 2 \"${f%.*}.mp3\"; done<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Explication des param\u00e8tres<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>-acodec libmp3lame<\/code> \u2014 utilise l&#8217;encodeur LAME pour produire du MP3.<\/li>\n<li><code>-q:a 2<\/code> \u2014 qualit\u00e9 variable (VBR). \u00c9chelle de 0 (meilleure qualit\u00e9, ~245 kbps) \u00e0 9 (pire, ~65 kbps). La valeur 2 (~190 kbps) offre un bon compromis qualit\u00e9\/taille.<\/li>\n<li><code>${f%.*}.mp3<\/code> \u2014 remplace l&#8217;extension du fichier source par .mp3.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Alternatives<\/h3>\n\n\n\n<p>Pour du AAC (meilleure qualit\u00e9 \u00e0 d\u00e9bit \u00e9gal) : <code>ffmpeg -i video.mp4 -acodec aac -b:a 192k audio.m4a<\/code>. Pour extraire l&#8217;audio sans r\u00e9-encoder (copie directe, ultra rapide) : <code>ffmpeg -i video.mp4 -vn -acodec copy audio.aac<\/code>.<\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>Extraire la piste audio d&#8217;une vid\u00e9o MP4 et la convertir en MP3 avec ffmpeg \u2014 en une ligne, pour un fichier ou pour tout un dossier. Un seul fichier Tous les MP4 d&#8217;un dossier Explication des param\u00e8tres -acodec libmp3lame \u2014 utilise l&#8217;encodeur LAME pour produire du MP3. -q:a 2 \u2014 qualit\u00e9 variable (VBR). \u00c9chelle de &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/www.gistlabs.net\/weblogs\/how-to-convert-mp4-video-files-to-mp3-audio\/\">Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,13],"tags":[568,493,494,228,29,492,491],"class_list":["post-1593","post","type-post","status-publish","format-standard","hentry","category-dev","category-unix","tag-audio","tag-convertion","tag-ffmpeg","tag-how-to","tag-linux","tag-mp3","tag-mp4","item-wrap"],"_links":{"self":[{"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/posts\/1593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/comments?post=1593"}],"version-history":[{"count":4,"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/posts\/1593\/revisions"}],"predecessor-version":[{"id":1884,"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/posts\/1593\/revisions\/1884"}],"wp:attachment":[{"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/media?parent=1593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/categories?post=1593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gistlabs.net\/weblogs\/wp-json\/wp\/v2\/tags?post=1593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}