diff --git a/app/src/main/java/com/zs/smarthuman/sherpa/VoiceController.kt b/app/src/main/java/com/zs/smarthuman/sherpa/VoiceController.kt
index 81cdab2..aaec1b4 100644
--- a/app/src/main/java/com/zs/smarthuman/sherpa/VoiceController.kt
+++ b/app/src/main/java/com/zs/smarthuman/sherpa/VoiceController.kt
@@ -85,11 +85,12 @@ class VoiceController(
         // 唤醒检测
         wakeupManager.acceptAudio(samples)
         if (wakeupManager.consumeWakeupFlag()) {
+            val preBufferSnapshot = preBuffer.toFloatArray()
             handleWakeupEvent()
             // 注册唤醒用户特征
             CoroutineScope(Dispatchers.IO).launch {
                 VoiceUtils.registerWakeupUser(
-                    preBuffer = preBuffer,
+                    preBuffer = ArrayDeque(preBufferSnapshot.asList()), // 用快照创建新队列
                     extractor = speakerExtractor,
                     manager = speakerManager
                 )
@@ -213,6 +214,7 @@ class VoiceController(
         if (stateManager.state == VoiceState.UPLOADING) return
         stopBackendAudio?.invoke()
         stateManager.enterWakeup(interrupt = true, resetRealtimeStats = ::resetRealtimeStats)
+        preBuffer.clear()
         onWakeup()
     }
 
diff --git a/app/src/main/java/com/zs/smarthuman/ui/MainActivity.kt b/app/src/main/java/com/zs/smarthuman/ui/MainActivity.kt
index 34af388..40397fd 100644
--- a/app/src/main/java/com/zs/smarthuman/ui/MainActivity.kt
+++ b/app/src/main/java/com/zs/smarthuman/ui/MainActivity.kt
@@ -37,7 +37,6 @@ import com.zs.smarthuman.BuildConfig
 import com.zs.smarthuman.R
 import com.zs.smarthuman.base.BaseActivity
 import com.zs.smarthuman.base.BaseViewModelActivity
-import com.zs.smarthuman.bean.AudioDTO
 import com.zs.smarthuman.bean.NetworkStatusEventMsg
 import com.zs.smarthuman.bean.UserInfoResp
 import com.zs.smarthuman.bean.VersionUpdateResp
@@ -191,10 +190,6 @@ class MainActivity : BaseViewModelActivity<ActivityMainBinding, MainViewModel>()
         voiceController = VoiceController(
             assetManager = assets,
             onWakeup = {
-                //每次唤醒前都要把前面的音频停掉
-                if (backPlaying){
-                    mViewModel?.pauseVoice()
-                }
                 UnityPlayerHolder.getInstance().cancelPCM()
                 UnityPlayerHolder.getInstance()
                     .sendVoiceToUnity(