diff --git a/src/services/agora.js b/src/services/agora.js
index 0005ce2..f492927 100644
--- a/src/services/agora.js
+++ b/src/services/agora.js
@@ -8,19 +8,10 @@ class AgoraService {
     this.isJoined = false;
     this.remoteUsers = {};
     this.volumeIndicator = null;
-    this.vadEnabled = true;
     // 加入同一RTC频道
     this.appid = '01a1debc964a4c6a8df1de2a6ce7aa4d';
     this.token = '007eJxTYChiW7ib6cSzPW7fP2xqFVvPqf854sNXniin39cd3pu931SlwGBgmGiYkpqUbGlmkmiSbJZokZIG5BslmiWnmicmmqRcenA7vSGQkaFhbQArIwMEgvgiDMn5eWWJmUCyOD8nNd7QwtDAxJyBAQDAkSkW';
     this.channel = 'convaiconsole_181047';
-    
-    // VAD参数调整，检测语音段落
-    this.vadParams = {
-      interruptDurationMs: 800, // 语音中断500毫秒视为一段话结束
-      prefixPaddingMs: 300, // 在语音开始前预留的静音时间
-      silenceDurationMs: 1200, // 静音持续1.2秒视为用户停止说话
-      threshold: 0.5 // 判定为语音的阈值
-    };
 
     this.isListening = false;     // 是否正在监听
     this.isSpeaking = false;      // 用户是否正在说话
@@ -33,9 +24,10 @@ class AgoraService {
   /**
    * Initialize the Agora RTC client
    */
-  init() {
+  async init() {
     this.client = AgoraRTC.createClient({ mode: 'rtc', codec: 'vp8' });
     this.setupEventListeners();
+    
     return this.client;
   }
 
@@ -124,16 +116,6 @@ class AgoraService {
         return;
       };
       
-      // Enable VAD (Voice Activity Detection)
-      if (this.vadEnabled && this.localAudioTrack.setVADMode) {
-        this.localAudioTrack.setVADMode(true, this.vadParams);
-        
-        // 设置VAD回调，用于检测语音段落
-        if (this.inConversation) {
-          this.setupVADCallback();
-        }
-      }
-      
       // Publish local audio track
       console.log("this.localAudioTrack:",this.localAudioTrack);
       
@@ -179,28 +161,6 @@ class AgoraService {
   isAudioMuted() {
     return this.localAudioTrack ? !this.localAudioTrack.enabled : true;
   }
-
-  /**
-   * Set the VAD parameters
-   * @param {Object} params - The VAD parameters
-   */
-  setVADParams(params) {
-    this.vadParams = { ...this.vadParams, ...params };
-    if (this.localAudioTrack && this.localAudioTrack.setVADMode) {
-      this.localAudioTrack.setVADMode(this.vadEnabled, this.vadParams);
-    }
-  }
-
-  /**
-   * Enable or disable VAD
-   * @param {boolean} enabled - Whether to enable VAD
-   */
-  enableVAD(enabled) {
-    this.vadEnabled = enabled;
-    if (this.localAudioTrack && this.localAudioTrack.setVADMode) {
-      this.localAudioTrack.setVADMode(enabled, this.vadParams);
-    }
-  }
   
   /**
    * 开始对话状态
@@ -209,18 +169,6 @@ class AgoraService {
   startConversation(callback) {
     this.inConversation = true;
     this.speechSegmentCallback = callback;
-    
-    // 如果已经有音频轨道，设置VAD回调
-    if (this.localAudioTrack && this.vadEnabled) {
-      this.setupVADCallback();
-    } else {
-      // 如果没有音频轨道，先创建并发布
-      this.startAudioPublishing().then(success => {
-        if (success && this.vadEnabled) {
-          this.setupVADCallback();
-        }
-      });
-    }
   }
   
   /**
@@ -240,65 +188,6 @@ class AgoraService {
     this.recordedChunks = [];
   }
   
-  /**
-   * 设置VAD回调
-   */
-  setupVADCallback() {
-    // if (!this.localAudioTrack) return;
-
-    if (!this.localAudioTrack) {
-      return;
-    }
-    if (typeof this.localAudioTrack.setVADMode !== 'function') {
-      console.error("当前 Agora SDK 版本不支持 VAD 功能");}
-    
-    // 设置VAD回调
-    this.localAudioTrack.on('vad', (result) => {
-
-      console.log("VAD 事件触发，result.state:", result.state, "result:", result);
-
-      if (!this.inConversation) return;
-      
-      if (result.state === 'speech_start') {
-        // 语音开始
-        this.isSpeaking = true;
-        this.segmentBuffer = '';
-        
-        // 触发事件
-        const event = new CustomEvent('speech-start');
-        window.dispatchEvent(event);
-      } 
-      else if (result.state === 'speech_end') {
-        // 语音结束
-        this.isSpeaking = false;
-        
-        // 处理语音段落
-        if (this.segmentBuffer && this.segmentBuffer.trim()) {
-          this.processSpeechSegment(this.segmentBuffer);
-        }
-        
-        // 清除缓冲区
-        this.segmentBuffer = null;
-        
-        // 触发事件
-        const event = new CustomEvent('speech-end');
-        window.dispatchEvent(event);
-      }
-      else if (result.state === 'speech') {
-        // 正在说话，更新转写结果
-        if (result.text) {
-          this.segmentBuffer = result.text;
-          
-          // 触发事件
-          const event = new CustomEvent('speech-update', { 
-            detail: { text: result.text } 
-          });
-          window.dispatchEvent(event);
-        }
-      }
-    });
-  }
-  
   /**
    * 处理语音段落
    * @param {string} text - 语音段落文本