{"id":3209,"date":"2025-09-18T07:41:49","date_gmt":"2025-09-18T07:41:49","guid":{"rendered":"https:\/\/ahaconvert.com\/?p=3209"},"modified":"2026-01-07T10:47:31","modified_gmt":"2026-01-07T10:47:31","slug":"mp3-contre-mp4","status":"publish","type":"post","link":"https:\/\/ahaconvert.com\/fr\/mp3-contre-mp4\/","title":{"rendered":"MP3 vs MP4\u00a0: quelle est la diff\u00e9rence et lequel est le meilleur\u00a0?"},"content":{"rendered":"<div style=\"margin-top: 0px; margin-bottom: 0px;\" class=\"sharethis-inline-share-buttons\" ><\/div><h2><strong>Introduction<\/strong><\/h2>\n<p>Dans les m\u00e9dias num\u00e9riques, les formats MP3 et MP4 sont omnipr\u00e9sents, mais leurs fonctions sont diff\u00e9rentes. Le MP3 est r\u00e9serv\u00e9 \u00e0 l&#039;audio, tandis que le MP4 permet de stocker des fichiers audio, vid\u00e9o, etc.<\/p>\n<p>Un mythe courant veut que le MP4 ne soit qu&#039;une version plus r\u00e9cente ou \u00ab\u00a0am\u00e9lior\u00e9e\u00a0\u00bb du MP3. En r\u00e9alit\u00e9, la diff\u00e9rence entre MP3 et MP4 est bien plus qu&#039;un simple chiffre\u00a0: le MP3 est un format exclusivement audio, tandis que le MP4 est un conteneur pouvant contenir de l&#039;audio, de la vid\u00e9o, des images et m\u00eame des sous-titres. Le choix du format d\u00e9pend enti\u00e8rement de l&#039;usage que vous ferez du fichier.<\/p>\n<p>Dans ce guide, nous allons :<\/p>\n<ul>\n<li>Expliquez ce que sont r\u00e9ellement les formats MP3 et MP4, y compris leurs avantages et leurs inconv\u00e9nients.<\/li>\n<li>Comparez-les c\u00f4te \u00e0 c\u00f4te dans un tableau simple.<\/li>\n<li>R\u00e9pondez \u00e0 la question <em>\u00ab Est-ce que MP3 ou MP4 est le meilleur format pour moi ? \u00bb <\/em>avec des exemples.<\/li>\n<li>Je vous montre comment convertir MP4 en MP3 \u00e9tape par \u00e9tape avec AhaConvert et quelques autres outils.<\/li>\n<\/ul>\n<p>\u00c0 la fin, vous saurez exactement quand utiliser MP3, quand utiliser MP4 et comment basculer entre eux.<\/p>\n<h2><strong>Qu&#039;est-ce que le MP3 ?<\/strong><\/h2>\n<p><strong>MP3<\/strong>\u00a0est l&#039;abr\u00e9viation de<em>\u00a0MPEG-1 <\/em>Couche audio 3. Il s&#039;agit d&#039;un format audio num\u00e9rique \u00e0 usage g\u00e9n\u00e9ral sp\u00e9cialement con\u00e7u pour compresser les fichiers audio jusqu&#039;\u00e0 des tailles de fichiers plus petites tout en conservant une bonne qualit\u00e9 sonore.<\/p>\n<ul>\n<li><strong>Utiliser: <\/strong>Le MP3 est optimis\u00e9 pour l&#039;audio.<\/li>\n<li><strong>Compression: <\/strong>Il utilise une compression avec perte, c&#039;est-\u00e0-dire que quelques d\u00e9tails sonores sont r\u00e9duits pour compresser le fichier.<\/li>\n<li><strong>Compatibilit\u00e9: <\/strong>Le format MP3 est lisible sur presque tous les lecteurs de musique, smartphones ou lecteurs multim\u00e9dias.<\/li>\n<\/ul>\n<h3><strong>Avantages<\/strong><\/h3>\n<ul>\n<li>Tailles de fichiers compactes permettant de r\u00e9duire l&#039;espace de stockage.<\/li>\n<li>Fonctionne parfaitement sur presque tous les appareils et toutes les plateformes.<\/li>\n<li>Faciles \u00e0 t\u00e9l\u00e9charger et \u00e0 distribuer car ils sont compress\u00e9s.<\/li>\n<\/ul>\n<h3><strong>Avantages<\/strong><\/h3>\n<ul>\n<li>Fid\u00e9lit\u00e9 plus faible que les formats sans perte (tels que WAV ou FLAC).<\/li>\n<li>Pas adapt\u00e9 au stockage de vid\u00e9os ou d&#039;images : il s&#039;agit uniquement de stockage vocal.<\/li>\n<\/ul>\n<p><strong>Exemple:<\/strong>\u00a05 minutes d&#039;un morceau repr\u00e9senteraient environ 5 Mo en MP3 et, en comparaison, 50 Mo en WAV.<\/p>\n<h2><strong>Qu&#039;est-ce que MP4 ?<\/strong><\/h2>\n<p><strong>MP4<\/strong>\u00a0signifie<em>\u00a0MPEG-4<\/em>\u00a0Partie 14\u00a0: il s&#039;agit d&#039;un format conteneur multim\u00e9dia. Alors que MP3 est un format de fichier audio pur, MP4 peut contenir de l&#039;audio, de la vid\u00e9o, des images et m\u00eame des sous-titres dans un seul fichier. Il s&#039;agit donc d&#039;un format multim\u00e9dia tr\u00e8s flexible et populaire aujourd&#039;hui.<\/p>\n<ul>\n<li><strong>Utiliser pour : <\/strong>Le MP4 est enregistr\u00e9 pour \u00eatre utilis\u00e9 dans le multim\u00e9dia, pas seulement l&#039;audio, mais aussi la vid\u00e9o et d&#039;autres donn\u00e9es.<\/li>\n<li><strong>Compression: <\/strong>utilise des algorithmes de compression haut de gamme (AAC pour l&#039;audio et H.264 ou H.265 pour la vid\u00e9o) dans un compromis entre qualit\u00e9 et taille de fichier.<\/li>\n<li><strong>Compatibilit\u00e9: <\/strong>Soutenu par une \u00e9crasante majorit\u00e9 de joueurs, de t\u00e9l\u00e9phones portables et de technologies de streaming.<\/li>\n<\/ul>\n<h3><strong>Avantages<\/strong><\/h3>\n<ul>\n<li>Enregistre l&#039;audio et la vid\u00e9o en haute qualit\u00e9 dans un seul fichier.<\/li>\n<li>Prend en charge plusieurs pistes (audio, vid\u00e9o, sous-titres, chapitres).<\/li>\n<li>Parfait pour le streaming YouTube et Netflix et les r\u00e9seaux sociaux.<\/li>\n<li>Une compression efficace r\u00e9duit la taille des fichiers en dessous des formats vid\u00e9o bruts.<\/li>\n<\/ul>\n<h3><strong>Inconv\u00e9nients<\/strong><\/h3>\n<ul>\n<li>Fichiers plus volumineux que MP3 pour les fichiers audio exclusifs.<\/li>\n<li>L&#039;\u00e9dition et la conversion prennent plus de temps en raison de leur complexit\u00e9.<\/li>\n<li>N\u00e9cessite des lecteurs compatibles pour g\u00e9rer toutes les fonctions (par exemple, sous-titres, m\u00e9tadonn\u00e9es).<\/li>\n<\/ul>\n<p>Par exemple, un enregistrement vid\u00e9o de 5 minutes de musique enregistr\u00e9 au format de fichier MP4 peut avoir une taille de 50 \u00e0 100 Mo, et l&#039;audio au format de fichier MP3 aurait une taille d&#039;environ 5 Mo.<\/p>\n<h2><strong>Diff\u00e9rence entre MP3 et MP4<\/strong><\/h2>\n<p>\u00c0 premi\u00e8re vue, MP3 et MP4 peuvent sembler \u00eatre deux versions du m\u00eame format, mais en r\u00e9alit\u00e9, ils sont tr\u00e8s diff\u00e9rents. Pour comprendre la diff\u00e9rence entre MP3 et MP4, il suffit de se rappeler\u00a0:<\/p>\n<ul>\n<li><strong>MP3 = format audio uniquement<\/strong><\/li>\n<li><strong>MP4 = conteneur multim\u00e9dia (audio + vid\u00e9o + plus)<\/strong><\/li>\n<\/ul>\n<p>Alors que le format MP3 se concentre sur les fichiers audio compacts et portables, le format MP4 vous offre la flexibilit\u00e9 de stocker \u00e0 la fois l&#039;audio et la vid\u00e9o dans un seul package.<\/p>\n<h3><strong>Comparaison : MP3 vs MP4<\/strong><\/h3>\n<table>\n<thead>\n<tr>\n<th>Fonctionnalit\u00e9<\/th>\n<th>MP3 (MPEG-1 Audio Layer 3)<\/th>\n<th>MP4 (MPEG-4 Partie 14)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Type de fichier<\/td>\n<td>Format de compression audio<\/td>\n<td>Format de conteneur multim\u00e9dia (audio + vid\u00e9o)<\/td>\n<\/tr>\n<tr>\n<td>Support de contenu<\/td>\n<td>Audio uniquement<\/td>\n<td>Audio, vid\u00e9o, images, sous-titres<\/td>\n<\/tr>\n<tr>\n<td>Compression<\/td>\n<td>Compression audio avec perte<\/td>\n<td>Avec ou sans perte (AAC, H.264, H.265, etc.)<\/td>\n<\/tr>\n<tr>\n<td>Taille du fichier<\/td>\n<td>Tr\u00e8s petit (par exemple, 5 Mo pour une chanson de 5 minutes)<\/td>\n<td>Plus grand (par exemple, 50 \u00e0 100 Mo pour une vid\u00e9o de 5 minutes)<\/td>\n<\/tr>\n<tr>\n<td>Qualit\u00e9<\/td>\n<td>Correct mais r\u00e9duit par rapport \u00e0 WAV\/FLAC<\/td>\n<td>Vid\u00e9o + audio de haute qualit\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Compatibilit\u00e9<\/td>\n<td>Prise en charge universelle sur tous les appareils<\/td>\n<td>Largement pris en charge, mais certaines fonctionnalit\u00e9s peuvent varier<\/td>\n<\/tr>\n<tr>\n<td>Id\u00e9al pour<\/td>\n<td>Musique, livres audio, podcasts<\/td>\n<td>Films, tutoriels vid\u00e9o, m\u00e9dias en streaming<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t<div id=\"text-2174966696\" class=\"text\">\n\t\t\n<p><strong>\u00c0 retenir rapidement :<\/strong><\/p>\n<ul>\n<li>Choisir <strong>MP3 <\/strong>si vous avez seulement besoin d&#039;un son l\u00e9ger qui peut \u00eatre diffus\u00e9 partout.<\/li>\n<li>Choisir <strong>MP4 <\/strong>si vous voulez \u00e0 la fois de la vid\u00e9o et de l&#039;audio avec une bonne qualit\u00e9.<\/li>\n<\/ul>\n<h2><strong>MP3 VS MP4 : lequel est le meilleur ?<\/strong><\/h2>\n<p>Il n&#039;y a pas de r\u00e9ponse d\u00e9finitive \u00e0 la question \u00ab\u00a0MP4 ou MP3\u00a0?\u00a0\u00bb Cela d\u00e9pend de l&#039;usage que vous souhaitez faire du fichier.<\/p>\n<h3><strong>Quand le MP3 est meilleur<\/strong><\/h3>\n<p>Pour les fichiers audio et musicaux : MP3 compresse les fichiers \u00e0 une petite taille sans rendre les chansons inaudibles.<\/p>\n<ul>\n<li><strong>Pour la portabilit\u00e9 : <\/strong>Il fonctionne sur n&#039;importe quel t\u00e9l\u00e9phone, lecteur audio de voiture ou lecteur multim\u00e9dia.<\/li>\n<li><strong>\u00c0 partager : <\/strong>Facile \u00e0 publier, \u00e0 envoyer par courrier \u00e9lectronique ou \u00e0 transmettre rapidement car les fichiers sont petits.<\/li>\n<\/ul>\n<p><strong>Exemple: <\/strong>Pour stocker 500 chansons sur le t\u00e9l\u00e9phone sans occuper d&#039;espace de stockage, la meilleure option est le MP3.<\/p>\n<h3><strong>Quand le MP4 est-il meilleur\u00a0?<\/strong><\/h3>\n<ul>\n<li><strong>Pour les fichiers vid\u00e9o\u00a0: <\/strong>La valeur par d\u00e9faut pour les didacticiels vid\u00e9o et les films, ainsi que pour les t\u00e9l\u00e9chargements YouTube, est MP4.<\/li>\n<li><strong>Pour les projets multim\u00e9dias : <\/strong>Inclut l&#039;audio, la vid\u00e9o, les images et les sous-titres dans un seul fichier.<\/li>\n<li><strong>Pour le streaming, <\/strong>Les plateformes multim\u00e9dias comme Netflix, YouTube et TikTok utilisent principalement le format MP4.<\/li>\n<\/ul>\n<p><strong>Exemple:<\/strong>\u00a0Si vous souhaitez visionner un clip vid\u00e9o ou enregistrer un cours en ligne, <strong>MP4 <\/strong>c&#039;est le meilleur.<\/p>\n<h2><strong>Comment convertir MP4 en MP3<\/strong><\/h2>\n<p>L\u2019une des premi\u00e8res questions qui se pose apr\u00e8s avoir compar\u00e9 <strong>MP4 et MP3<\/strong> La question est la suivante\u00a0: \u00ab\u00a0Comment convertir des fichiers MP4 en MP3\u00a0?\u00a0\u00bb La r\u00e9ponse est un oui cat\u00e9gorique et tr\u00e8s simple. Voici les \u00e9tapes \u00e0 suivre, notamment\u00a0:<strong>\u00a0AhaConvert<\/strong>, que nous approuvons vivement.<\/p>\n<h3><strong>M\u00e9thode 1\u00a0: Comment convertir un fichier MP4 en MP3 avec AhaConvert<\/strong><\/h3>\n<p>AhaConvert est une application web gratuite qui vous permet de convertir facilement des fichiers vid\u00e9o MP4 en fichiers audio MP3 en quelques clics. Rapide et s\u00e9curis\u00e9e, elle ne n\u00e9cessite aucune installation de logiciel.<\/p>\n<p><strong>Mesures:<\/strong><\/p>\n<ol>\n<li>Ouvrir <a href=\"https:\/\/ahaconvert.com\/fr\/\"><strong><u>AhaConvert <\/u><\/strong><\/a>dans le navigateur Web.<\/li>\n<\/ol>\n\t\t\n<style>\n#text-2174966696 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-2065535775\">\n\n\t<div id=\"col-66467472\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1521613620\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1354\" height=\"668\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/open-ahaconvert.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/open-ahaconvert.webp 1354w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/open-ahaconvert-300x148.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/open-ahaconvert-1024x505.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/open-ahaconvert-768x379.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/open-ahaconvert-18x9.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/open-ahaconvert-600x296.webp 600w\" sizes=\"auto, (max-width: 1354px) 100vw, 1354px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1521613620 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>2. Choisissez le <strong>\u00ab\u00a0Choisir un fichier\u00a0\u00bb <\/strong>et ajoutez la vid\u00e9o MP4.<\/p>\n<div class=\"row\"  id=\"row-386094230\">\n\n\t<div id=\"col-2119203645\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_966832222\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1358\" height=\"681\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/choose-file.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/choose-file.webp 1358w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/choose-file-300x150.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/choose-file-1024x514.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/choose-file-768x385.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/choose-file-18x9.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/choose-file-600x301.webp 600w\" sizes=\"auto, (max-width: 1358px) 100vw, 1358px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_966832222 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>3. Choisissez <strong>\u00ab MP3 \u00bb<\/strong>\u00a0dans le format cible.<\/p>\n<div class=\"row\"  id=\"row-1551917850\">\n\n\t<div id=\"col-401393486\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_13107056\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1352\" height=\"679\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/select-mp3.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/select-mp3.webp 1352w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/select-mp3-300x151.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/select-mp3-1024x514.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/select-mp3-768x386.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/select-mp3-18x9.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/select-mp3-600x301.webp 600w\" sizes=\"auto, (max-width: 1352px) 100vw, 1352px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_13107056 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>4. Appuyez sur le <strong>&quot;Convertir&quot; <\/strong><\/p>\n<div class=\"row\"  id=\"row-2146566048\">\n\n\t<div id=\"col-403877234\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_783216405\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1357\" height=\"685\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/press-convert.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/press-convert.webp 1357w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/press-convert-300x151.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/press-convert-1024x517.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/press-convert-768x388.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/press-convert-18x9.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/press-convert-600x303.webp 600w\" sizes=\"auto, (max-width: 1357px) 100vw, 1357px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_783216405 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>5. Apr\u00e8s la conversion, t\u00e9l\u00e9chargez le fichier MP3 nouvellement cr\u00e9\u00e9.<\/p>\n<div class=\"row\"  id=\"row-1560579658\">\n\n\t<div id=\"col-29376798\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_832729211\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1359\" height=\"678\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/download-the-new-mp3-file.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/download-the-new-mp3-file.webp 1359w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/download-the-new-mp3-file-300x150.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/download-the-new-mp3-file-1024x511.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/download-the-new-mp3-file-768x383.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/download-the-new-mp3-file-18x9.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/download-the-new-mp3-file-600x299.webp 600w\" sizes=\"auto, (max-width: 1359px) 100vw, 1359px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_832729211 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p><strong>Pourquoi utiliser AhaConvert ?<\/strong><\/p>\n<ul>\n<li>Aucune inscription.<\/li>\n<li>Fonctionne sur tous les navigateurs et appareils.<\/li>\n<li>Enregistre un son de bonne qualit\u00e9 tout en conservant une taille de fichier faible.<\/li>\n<\/ul>\n<h3><strong>\u00a0M\u00e9thode 2\u00a0: Convertir MP4 en MP3 avec Audacity (utilisateurs avanc\u00e9s)<\/strong><\/h3>\n<p>Audacity est un \u00e9diteur audio gratuit qui peut importer des fichiers vid\u00e9o et exporter l&#039;audio au format MP3.<\/p>\n<p><strong>Mesures:<\/strong><\/p>\n<ol>\n<li>Ouvrez Audacity et importez votre fichier MP4.<\/li>\n<\/ol>\n<div class=\"row\"  id=\"row-480363167\">\n\n\t<div id=\"col-778381946\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1339125841\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1365\" height=\"730\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Open-Audacity.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Open-Audacity.webp 1365w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Open-Audacity-300x160.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Open-Audacity-1024x548.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Open-Audacity-768x411.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Open-Audacity-18x10.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Open-Audacity-600x321.webp 600w\" sizes=\"auto, (max-width: 1365px) 100vw, 1365px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1339125841 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>2. Attendez que la piste audio se charge.<\/p>\n<div class=\"row\"  id=\"row-1284070732\">\n\n\t<div id=\"col-970611735\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_425368264\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1366\" height=\"712\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Wait-for-the-audio-track-to-load.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Wait-for-the-audio-track-to-load.webp 1366w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Wait-for-the-audio-track-to-load-300x156.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Wait-for-the-audio-track-to-load-1024x534.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Wait-for-the-audio-track-to-load-768x400.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Wait-for-the-audio-track-to-load-18x9.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/Wait-for-the-audio-track-to-load-600x313.webp 600w\" sizes=\"auto, (max-width: 1366px) 100vw, 1366px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_425368264 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>3. Allez \u00e0 <strong>Fichier &gt; Exporter &gt; Exporter au format MP3<\/strong>.<\/p>\n<div class=\"row\"  id=\"row-582320955\">\n\n\t<div id=\"col-760216731\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1238761587\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1366\" height=\"723\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-as-mp3.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-as-mp3.webp 1366w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-as-mp3-300x159.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-as-mp3-1024x542.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-as-mp3-768x406.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-as-mp3-18x10.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-as-mp3-600x318.webp 600w\" sizes=\"auto, (max-width: 1366px) 100vw, 1366px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1238761587 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>4. Choisissez vos param\u00e8tres et exportez le fichier.<\/p>\n<div class=\"row\"  id=\"row-2073427333\">\n\n\t<div id=\"col-1724262518\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_502154626\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1362\" height=\"728\" src=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-the-file.webp\" class=\"attachment-original size-original\" alt=\"\" srcset=\"https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-the-file.webp 1362w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-the-file-300x160.webp 300w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-the-file-1024x547.webp 1024w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-the-file-768x411.webp 768w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-the-file-18x10.webp 18w, https:\/\/ahaconvert.com\/wp-content\/uploads\/2025\/09\/export-the-file-600x321.webp 600w\" sizes=\"auto, (max-width: 1362px) 100vw, 1362px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_502154626 {\n  width: 84%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<h3><strong>M\u00e9thode 3\u00a0: Options alternatives en ligne<\/strong><\/h3>\n<p>Si vous pr\u00e9f\u00e9rez plus de vari\u00e9t\u00e9, ce logiciel fonctionne \u00e9galement tr\u00e8s bien :<\/p>\n<ul>\n<li><a href=\"https:\/\/cloudconvert.com\/\"><u>CloudConvert<\/u><\/a><\/li>\n<li><a href=\"https:\/\/convertio.co\/mp4-mp3\/\"><u>convertio<\/u><\/a><\/li>\n<\/ul>\n<p><strong>Note:<\/strong>\u00a0Assurez-vous de v\u00e9rifier les restrictions de taille de fichier et \u00e9vitez les sites Web suspects, qui peuvent compromettre votre confidentialit\u00e9.<\/p>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p>Le point important ici est simple :<\/p>\n<ul>\n<li><strong>MP3 <\/strong>est un format audio l\u00e9ger et hautement portable, id\u00e9al pour la musique, les podcasts et les livres audio.<\/li>\n<li><strong>MP4 <\/strong>est un format de fichier multim\u00e9dia pour l&#039;audio et la vid\u00e9o et constitue donc un format adapt\u00e9 aux films, aux instructions vid\u00e9o et au streaming vid\u00e9o.<\/li>\n<\/ul>\n<p><strong>Le MP4 est-il donc sup\u00e9rieur au MP3 ?<\/strong><\/p>\n<ul>\n<li>Pour les besoins audio uniquement \u2192 <strong>Le MP3 gagne.<\/strong><\/li>\n<li>Pour une flexibilit\u00e9 multim\u00e9dia \u2192<strong>MP4 gagne<\/strong>.<\/li>\n<\/ul>\n<p>Et si vous avez besoin de changer de format \u00e0 tout moment, des logiciels tels que<strong>\u00a0AhaConvert <\/strong>permet de <strong>convertir MP4 en MP3<\/strong>\u00a0tout en conservant facilement une qualit\u00e9 \u00e9lev\u00e9e.<\/p>\n<p>En fin de compte, le meilleur formatage d\u00e9pend du cas d&#039;utilisation, mais vous saurez d\u00e9sormais officiellement comment prendre la d\u00e9cision.<\/p>\n<h2><strong>Questions fr\u00e9quemment pos\u00e9es<\/strong><\/h2>\n<h3><strong>1. Comment convertir MP3 en MP4 ?<\/strong><\/h3>\n<p>Oui, mais vous n&#039;aurez pas de vid\u00e9o lors de la conversion de MP3 en MP4. Vous devrez empaqueter le MP3 avec une piste vid\u00e9o vide ou personnalis\u00e9e.<\/p>\n<h3><strong>2. Le format MP4 en MP3 r\u00e9duit-il la qualit\u00e9 ?<\/strong><\/h3>\n<p>Certes, une certaine qualit\u00e9 est perdue lors de la conversion, car le format MP3 utilise une compression avec perte. Mais pour une oreille moyenne, la diff\u00e9rence n&#039;est pas trop marqu\u00e9e.<\/p>\n<h3><strong>3. Quel est le meilleur format de streaming ?<\/strong><\/h3>\n<p><strong>MP4 <\/strong>est le format universel pour les sites de streaming vid\u00e9o et audio comme Netflix et YouTube, car il prend en charge la vid\u00e9o et l&#039;audio.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction In digital media,MP3 and MP4 formats are everywhere, but they serve different purposes. MP3 is for audio only, while MP4 holds audio, video, and more. A common myth is that MP4 is just a newer or \u201cbetter\u201d version of MP3. In reality, the difference between MP3 and MP4\u00a0is more than just a number: MP3 [&#8230;]\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3209","post","type-post","status-publish","format-standard","hentry","category-blogs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MP3 vs MP4: What\u2019s the Difference and Which One is Better - AhaConvert<\/title>\n<meta name=\"description\" content=\"MP3 vs MP4, confused which format is right for you? 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