diff --git a/app.js b/app.js
index e9373ef..9005116 100644
--- a/app.js
+++ b/app.js
@@ -138,6 +138,7 @@ let game = {
         scene.music.pause()
         stats.clock.stop()
         messagesSpan.addNewChild("div", { className: "show-level-animation", innerHTML: `<h1>GAME<br/>OVER</h1>` })
+        stats.speak("Game Over")
 
         menu.pauseButton.hide()
         menu.startButton.name("Rejouer")
diff --git a/jsm/Stats.js b/jsm/Stats.js
index 8bc3a66..f43b91c 100644
--- a/jsm/Stats.js
+++ b/jsm/Stats.js
@@ -34,6 +34,7 @@ class Stats {
             timeZone: "UTC"
         })
         this.elapsedTime = 0
+        this.speechSynthesisAvailable = 'speechSynthesis' in window;
 
         this.init()
     }
@@ -71,7 +72,7 @@ class Stats {
         if (level <= 20) this.fallPeriod = 1000 * Math.pow(0.8 - ((level - 1) * 0.007), level - 1)
         if (level > 15) this.lockDelay = 500 * Math.pow(0.9, level - 15)
         messagesSpan.addNewChild("div", { className: "show-level-animation", innerHTML: `<h1>NIVEAU<br/>${this.level}</h1>` })
-        speak(`Niveau ${level}`, this.settings.sfxVolume);
+        this.speak(`Niveau ${level}`, this.settings.sfxVolume);
     }
 
     get level() {
@@ -180,24 +181,23 @@ class Stats {
             this.b2b = -1
         }
 
-        if (speechSynthesisAvailable && this.settings.sfxVolume) {
-            if (tSpin) speak(tSpin, this.settings.sfxVolume);
-            if (nbClearedLines) speak(CLEARED_LINES_NAMES[nbClearedLines], this.settings.sfxVolume);
+        if (this.speechSynthesisAvailable && this.settings.sfxVolume) {
+            if (tSpin) this.speak(tSpin, this.settings.sfxVolume);
+            if (nbClearedLines) this.speak(CLEARED_LINES_NAMES[nbClearedLines], this.settings.sfxVolume);
         }
 
         this.goal -= awardedLineClears
         if (this.goal <= 0) return this.level++
     }
-}
 
+    speak(text, volume=1) {
+        if (!this.speechSynthesisAvailable) return;
 
-const speechSynthesisAvailable = 'speechSynthesis' in window;
-function speak(text, volume=1) {
-    if (!speechSynthesisAvailable) return;
-    const utterance = new SpeechSynthesisUtterance(text);
-    utterance.lang = 'fr-FR';
-    utterance.volume = volume;
-    speechSynthesis.speak(utterance);
+        const utterance = new SpeechSynthesisUtterance(text);
+        utterance.lang = 'fr-FR';
+        utterance.volume = volume;
+        speechSynthesis.speak(utterance);
+    }
 }
 
 
diff --git a/jsm/Tetrominoes.js b/jsm/Tetrominoes.js
index f85fc79..d79bf39 100644
--- a/jsm/Tetrominoes.js
+++ b/jsm/Tetrominoes.js
@@ -164,8 +164,8 @@ InstancedMino.prototype.materials = {
         envMap: environment,
         side: THREE.DoubleSide,
         transparent: true,
-        opacity: 0.5,
-        roughness: 0.25,
+        opacity: 0.55,
+        roughness: 0.35,
         metalness: 0.9,
     }),
     Espace: new THREE.MeshStandardMaterial({