diff --git a/src/audioManager.js b/src/audioManager.js
index 22483c1..ca0b17f 100644
--- a/src/audioManager.js
+++ b/src/audioManager.js
@@ -111,6 +111,10 @@ class AudioManager {
     this.sequenceIndex = 0;
     this.isSequenceRunning = false;
 
+    // 防重复播放保护
+    this.lastPlayKey = null;
+    this.lastPlayAt = 0;
+
     // 静音开关
     this.isMuted = false;
 
@@ -355,6 +359,13 @@ class AudioManager {
 
   // 内部方法：播放单个 key
   _playSingle(key, forceStopAll = false) {
+    // 200ms 内的同 key 重复播放直接忽略，避免“比比赛开始”这类重复首音
+    const now = Date.now();
+    if (this.lastPlayKey === key && now - this.lastPlayAt < 250) {
+      debugLog(`忽略快速重复播放: ${key}`);
+      return;
+    }
+
     if (!this.networkOnline) {
       const audio = this.audioMap.get(key);
       const isReady = this.readyMap && this.readyMap.get(key);
@@ -370,6 +381,9 @@ class AudioManager {
       this.stopAll();
     } else if (this.currentPlayingKey && this.currentPlayingKey !== key) {
       this.stop(this.currentPlayingKey);
+    } else if (this.currentPlayingKey === key) {
+      // 同一音频正在播放：不重启，避免听到重复开头
+      return;
     }
 
     const audio = this.audioMap.get(key);
@@ -401,6 +415,8 @@ class AudioManager {
 
       audio.play();
       this.currentPlayingKey = key;
+      this.lastPlayKey = key;
+      this.lastPlayAt = Date.now();
     } else {
       debugLog(`音频 ${key} 不存在，尝试重新加载...`);
       this.reloadAudio(key);