diff --git a/main/templates/scan.html b/main/templates/scan.html
index dfe3134..94ac612 100644
--- a/main/templates/scan.html
+++ b/main/templates/scan.html
@@ -105,16 +105,18 @@ document.addEventListener('DOMContentLoaded', function() {
     // plus de bouton OK, plus de gestion de clic
 });
 
-function beep() {
-    const ctx = new(window.AudioContext || window.webkitAudioContext)();
-    const oscillator = ctx.createOscillator();
-    oscillator.type = 'sine';
-    oscillator.frequency.setValueAtTime(1000, ctx.currentTime);
-    oscillator.connect(ctx.destination);
-    oscillator.start();
-    setTimeout(() => { oscillator.stop(); ctx.close(); }, 150);
+function playSound(type) {
+    if (typeof window.beepEnabled !== 'undefined' && !window.beepEnabled) return;
+    let audio;
+    if (type === 'ok') {
+        audio = new Audio("{% static 'mp3/ok.mp3' %}");
+    } else {
+        audio = new Audio("{% static 'mp3/error.mp3' %}");
+    }
+    audio.play();
 }
 
+
 let lastScanned = '';
 let html5Qrcode;
 
@@ -187,7 +189,6 @@ function onScanSuccess(decodedText, decodedResult) {
     if (decodedText === lastScanned || window.scanDebounce) return;
     window.scanDebounce = true;
     lastScanned = decodedText;
-    beep();
     const courseId = getCourseIdFromUrl();
     if (!courseId) {
         window.scanDebounce = false;
@@ -205,21 +206,28 @@ function onScanSuccess(decodedText, decodedResult) {
     .then(response => response.text())
     .then(html => {
         document.getElementById('scanResult').innerHTML = html;
+        // Détecte succès ou erreur selon la présence d'une classe d'erreur dans la réponse
+        if (html.includes('alert-danger')) {
+            playSound('error');
+        } else {
+            playSound('ok');
+        }
         setTimeout(function() {
             window.scanDebounce = false;
         }, 100); // 100ms de délai avant d'autoriser un nouveau scan
     })
     .catch(() => {
+        playSound('error');
         window.scanDebounce = false;
     });
 }
 document.addEventListener('DOMContentLoaded', function() {
     const beepBtn = document.getElementById('toggleBeep');
     const beepIcon = document.getElementById('beepIcon');
-    let beepEnabled = true;
+    window.beepEnabled = true;
     beepBtn.onclick = function() {
-        beepEnabled = !beepEnabled;
-        if (beepEnabled) {
+        window.beepEnabled = !window.beepEnabled;
+        if (window.beepEnabled) {
             beepIcon.classList.remove('fa-volume-mute');
             beepIcon.classList.add('fa-volume-up');
             beepBtn.title = 'Désactiver bip scan';
@@ -229,16 +237,6 @@ document.addEventListener('DOMContentLoaded', function() {
             beepBtn.title = 'Activer bip scan';
         }
     };
-    window.beep = function() {
-        if (!beepEnabled) return;
-        const ctx = new(window.AudioContext || window.webkitAudioContext)();
-        const oscillator = ctx.createOscillator();
-        oscillator.type = 'sine';
-        oscillator.frequency.setValueAtTime(1000, ctx.currentTime);
-        oscillator.connect(ctx.destination);
-        oscillator.start();
-        setTimeout(() => { oscillator.stop(); ctx.close(); }, 150);
-    };
 });
 
 Html5Qrcode.getCameras().then(cameras => {