diff --git a/app/src/main/assets/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx b/app/src/main/assets/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx
index 65ad555..dd917a2 100644
Binary files a/app/src/main/assets/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx and b/app/src/main/assets/3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx differ
diff --git a/app/src/main/java/com/zs/smarthuman/sherpa/VadManager.kt b/app/src/main/java/com/zs/smarthuman/sherpa/VadManager.kt
index ff86af4..61115c7 100644
--- a/app/src/main/java/com/zs/smarthuman/sherpa/VadManager.kt
+++ b/app/src/main/java/com/zs/smarthuman/sherpa/VadManager.kt
@@ -28,7 +28,7 @@ class VadManager(
                 sileroVadModelConfig = SileroVadModelConfig(
                     model = "silero_vad.onnx",
                     threshold = 0.5F,
-                    minSilenceDuration = 0.25F,
+                    minSilenceDuration = 0.1F,
                     minSpeechDuration = 0.25F,
                     windowSize = 512,
                 ),
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 c3a6287..39b3ec8 100644
--- a/app/src/main/java/com/zs/smarthuman/sherpa/VoiceController.kt
+++ b/app/src/main/java/com/zs/smarthuman/sherpa/VoiceController.kt
@@ -25,12 +25,15 @@ class VoiceController(
     companion object {
         // 日志标签
         private const val TAG = "VoiceController"
+
         // 采样率
         private const val SAMPLE_RATE = 16000
+
         // 预缓存大小（2秒）
         private const val PRE_BUFFER_SIZE = SAMPLE_RATE * 2
 
         private const val INVALID_RESET_DEBOUNCE_MS = 1500L
+
         // 最小语音时长
         private const val MIN_SPEECH_MS = 600L
 
@@ -78,6 +81,7 @@ class VoiceController(
     // 声纹验证相关
     private val CURRENT_USER_ID = "current_wakeup_user"
     private val ENABLE_STRICT_SPEAKER_VERIFY = true
+    private val preBufferLock = Any()
 
     init {
         try {
@@ -163,7 +167,10 @@ class VoiceController(
                     } else {
                         TimeoutType.IDLE_TIMEOUT
                     }
-                    LogUtils.d(TAG, "⏱ WAIT_SPEECH timeout → WAIT_WAKEUP | 超时类型: $currentTimeoutType")
+                    LogUtils.d(
+                        TAG,
+                        "⏱ WAIT_SPEECH timeout → WAIT_WAKEUP | 超时类型: $currentTimeoutType"
+                    )
                     onTimeoutTip?.invoke(currentTimeoutType)
                     resetAll()
                     return
@@ -273,7 +280,9 @@ class VoiceController(
         speechEnableAtMs = System.currentTimeMillis() + SPEECH_COOLDOWN_MS
         LogUtils.d(TAG, "🎵 提示音结束")
         if (!preBuffer.isEmpty()) {
-            preBuffer.clear()
+            synchronized(preBufferLock){
+                preBuffer.clear()
+            }
         }
         state = VoiceState.WAIT_SPEECH_COOLDOWN
     }
@@ -322,7 +331,9 @@ class VoiceController(
         LogUtils.d(TAG, "🔄 重置所有状态 | 本次超时类型: $currentTimeoutType")
         audioBuffer.clear()
         if (!preBuffer.isEmpty()) {
-            preBuffer.clear()
+            synchronized(preBufferLock){
+                preBuffer.clear()
+            }
         }
         vadManager.reset()
         wakeupManager.reset()
@@ -363,22 +374,20 @@ class VoiceController(
     private fun cachePreBuffer(samples: FloatArray) {
         // 空数据快速返回，避免无效循环
         if (samples.isEmpty()) return
-
-        for (s in samples) {
-            preBuffer.addLast(s)
-            // 关键修复：移除前先检查队列是否非空
-//            if (preBuffer.size > PRE_BUFFER_SIZE && !preBuffer.isEmpty()) {
-//                preBuffer.removeFirst()
-//            }
-            if (preBuffer.size > PRE_BUFFER_SIZE) {
-                if (preBuffer.isEmpty()) {
-                    LogUtils.w(TAG, "❌ preBuffer is empty when trying to remove first element")
-                } else {
-                    preBuffer.removeFirst()
+        synchronized(preBufferLock) {
+            for (s in samples) {
+                preBuffer.addLast(s)
+                if (preBuffer.size > PRE_BUFFER_SIZE) {
+                    if (preBuffer.isEmpty()) {
+                        LogUtils.w(TAG, "❌ preBuffer is empty when trying to remove first element")
+                    } else {
+                        preBuffer.removeFirst()
+                    }
                 }
-            }
 
+            }
         }
+
     }
 
     private fun verifySpeaker(audio: FloatArray): Boolean {
@@ -426,7 +435,10 @@ class VoiceController(
                 // 3. 计算真实处理耗时（结束时间 - 开始时间）
                 val verifyCostMs = System.currentTimeMillis() - verifyStartMs
                 // 日志区分：音频时长 vs 处理耗时
-                LogUtils.d(TAG, "📊 声纹验证 | 统一阈值: $SPEAKER_THRESHOLD | 通过: $verifyPass | 音频时长: $audioDurationMs ms | 处理耗时: $verifyCostMs ms")
+                LogUtils.d(
+                    TAG,
+                    "📊 声纹验证 | 统一阈值: $SPEAKER_THRESHOLD | 通过: $verifyPass | 音频时长: $audioDurationMs ms | 处理耗时: $verifyCostMs ms"
+                )
                 verifyPass
             }
         }.onFailure { e ->
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 0aa0a5c..ed2ace4 100644
--- a/app/src/main/java/com/zs/smarthuman/ui/MainActivity.kt
+++ b/app/src/main/java/com/zs/smarthuman/ui/MainActivity.kt
@@ -504,24 +504,24 @@ class MainActivity : BaseViewModelActivity<ActivityMainBinding, MainViewModel>()
     }
 
 
-    private fun loadLocalJsonAndPlay() {
-        lifecycleScope.launch(Dispatchers.IO) {
-            try {
-                val jsonStr = assets
-                    .open("readEnd.json")
-                    .bufferedReader()
-                    .use { it.readText() }
-
-                UnityPlayerHolder
-                    .getInstance()
-                    .startTalking(jsonStr)
-
-            } catch (e: Exception) {
-                e.printStackTrace()
-                LogUtils.eTag("lrs", "loadLocalJsonAndPlay error: ${e.message}")
-            }
-        }
-    }
+//    private fun loadLocalJsonAndPlay() {
+//        lifecycleScope.launch(Dispatchers.IO) {
+//            try {
+//                val jsonStr = assets
+//                    .open("readEnd.json")
+//                    .bufferedReader()
+//                    .use { it.readText() }
+//
+//                UnityPlayerHolder
+//                    .getInstance()
+//                    .startTalking(jsonStr)
+//
+//            } catch (e: Exception) {
+//                e.printStackTrace()
+//                LogUtils.eTag("lrs", "loadLocalJsonAndPlay error: ${e.message}")
+//            }
+//        }
+//    }
 
     /**
      * 下载并且安装