diff --git a/server.js b/server.js
index ca263df..707527c 100644
--- a/server.js
+++ b/server.js
@@ -85,10 +85,64 @@ app.delete('/api/messages/clear', async (req, res) => {
 // 存储连接的客户端和他们的视频流状态
 const connectedClients = new Map();
 
+// 场景轮询系统
+let currentSceneIndex = 0;
+const scenes = [
+  {
+    name: '起床',
+    defaultVideo: '8-4-bd-2.mp4',
+    interactionVideo: '8-4-sh.mp4',
+    tag: 'wakeup'
+  },
+  {
+    name: '开车',
+    defaultVideo: '8-4-kc-bd.mp4', // 根据您的视频文件调整
+    interactionVideo: '8-4-kc-sh.mp4',
+    tag: 'driving'
+  },
+  {
+    name: '喝茶',
+    defaultVideo: '8-4-hc-bd.mp4',
+    interactionVideo: '8-4-hc-sh.mp4',
+    tag: 'tea'
+  }
+];
+
+// 获取当前场景
+function getCurrentScene() {
+  return scenes[currentSceneIndex];
+}
+
+// 切换到下一个场景
+function switchToNextScene() {
+  currentSceneIndex = (currentSceneIndex + 1) % scenes.length;
+  console.log(`切换到场景: ${getCurrentScene().name}`);
+  return getCurrentScene();
+}
+
+// 视频映射配置 - 动态更新
+function getVideoMapping() {
+  const currentScene = getCurrentScene();
+  return {
+    'defaultVideo': currentScene.defaultVideo,
+    'interactionVideo': currentScene.interactionVideo,
+    'tag': currentScene.tag
+  };
+}
+
+// 默认视频流配置 - 动态获取
+function getDefaultVideo() {
+  return getCurrentScene().defaultVideo;
+}
+
+let currentScene = getCurrentScene();
+
 // 视频映射配置
 const videoMapping = {
   // 'say-6s-m-e': '1-m.mp4',
-  'default': 'chang.mp4',
+  'default': currentScene.defaultVideo,
+  '8-4-sh': currentScene.interactionVideo,
+  'tag': currentScene.tag
   // 'say-5s-amplitude': '2.mp4',
   // 'say-5s-m-e': '4.mp4',
   // 'say-5s-m-sw': 'd-0.mp4',
@@ -96,7 +150,7 @@ const videoMapping = {
 };
 
 // 默认视频流配置
-const DEFAULT_VIDEO = 'chang.mp4';
+const DEFAULT_VIDEO = currentScene.defaultVideo;
 const INTERACTION_TIMEOUT = 10000; // 10秒后回到默认视频
 
 // 获取视频列表
@@ -115,13 +169,14 @@ app.get('/api/videos', (req, res) => {
 
 // 获取视频映射
 app.get('/api/video-mapping', (req, res) => {
+  // videoMapping = getCurrentScene()
   res.json({ mapping: videoMapping });
 });
 
 // 获取默认视频
 app.get('/api/default-video', (req, res) => {
   res.json({ 
-    defaultVideo: DEFAULT_VIDEO,
+    defaultVideo: getDefaultVideo(),
     autoLoop: true
   });
 });
@@ -131,7 +186,7 @@ io.on('connection', (socket) => {
   console.log('用户连接:', socket.id);
   connectedClients.set(socket.id, {
     socket: socket,
-    currentVideo: DEFAULT_VIDEO,
+    currentVideo: getDefaultVideo(),
     isInInteraction: false
   });
 
@@ -185,12 +240,12 @@ io.on('connection', (socket) => {
       setTimeout(() => {
         console.log(`交互超时，用户 ${socket.id} 回到默认视频`);
         if (client) {
-          client.currentVideo = DEFAULT_VIDEO;
+          client.currentVideo = getDefaultVideo();
           client.isInInteraction = false;
         }
         // 广播回到默认视频的指令
         io.emit('video-stream-switched', { 
-          videoFile: DEFAULT_VIDEO, 
+          videoFile: getDefaultVideo(), 
           type: 'default',
           from: socket.id 
         });
@@ -203,7 +258,7 @@ io.on('connection', (socket) => {
     console.log('通话开始，用户:', socket.id);
     const client = connectedClients.get(socket.id);
     if (client) {
-      client.currentVideo = DEFAULT_VIDEO;
+      client.currentVideo = getDefaultVideo();
       client.isInInteraction = false;
     }
     io.emit('call-started', { from: socket.id });
@@ -262,15 +317,46 @@ io.on('connection', (socket) => {
     console.log('用户请求回到默认视频:', socket.id);
     const client = connectedClients.get(socket.id);
     if (client) {
-      client.currentVideo = DEFAULT_VIDEO;
+      client.currentVideo = getDefaultVideo();
       client.isInInteraction = false;
     }
     socket.emit('switch-video-stream', { 
-      videoFile: DEFAULT_VIDEO, 
+      videoFile: getDefaultVideo(), 
       type: 'default' 
     });
   });
 
+  // 处理用户关闭连接事件
+  socket.on('user-disconnect', () => {
+    console.log('用户主动关闭连接:', socket.id);
+    
+    // 切换到下一个场景
+    const newScene = switchToNextScene();
+    console.log(`场景已切换到: ${newScene.name}`);
+    
+    // 更新videoMapping
+    const newMapping = getVideoMapping();
+    videoMapping['default'] = newMapping.defaultVideo;
+    videoMapping['8-4-sh'] = newMapping.interactionVideo;
+    videoMapping['tag'] = newMapping.tag;
+    
+    console.log('videoMapping已更新:', videoMapping);
+    
+    // 清理客户端状态
+    const client = connectedClients.get(socket.id);
+    if (client) {
+      client.currentVideo = newMapping.defaultVideo;
+      client.isInInteraction = false;
+    }
+    
+    // 广播场景切换事件给所有客户端
+    io.emit('scene-switched', {
+      scene: newScene,
+      mapping: newMapping,
+      from: socket.id
+    });
+  });
+
   // 断开连接
   socket.on('disconnect', () => {
     console.log('用户断开连接:', socket.id);
diff --git a/src/audio_processor.js b/src/audio_processor.js
index e651a2d..853ed52 100644
--- a/src/audio_processor.js
+++ b/src/audio_processor.js
@@ -3,6 +3,7 @@
 class AudioProcessor {
     constructor(options = {}) {
         this.audioContext = null;
+        this.stream = null; // 添加这一行
         this.isRecording = false;
         this.audioChunks = [];
         
@@ -311,22 +312,29 @@ class AudioProcessor {
     }
     
     // 开始录音
-    async startRecording() {
+    async startRecording(existingStream = null) {
         try {
-            const stream = await navigator.mediaDevices.getUserMedia({
-                audio: {
-                    sampleRate: 16000,
-                    channelCount: 1,
-                    echoCancellation: true,
-                    noiseSuppression: true
-                }
-            });
+            // 如果有外部提供的音频流，使用它；否则获取新的
+            if (existingStream) {
+                this.stream = existingStream;
+                console.log('使用外部提供的音频流');
+            } else {
+                this.stream = await navigator.mediaDevices.getUserMedia({
+                    audio: {
+                        sampleRate: 16000,
+                        channelCount: 1,
+                        echoCancellation: true,
+                        noiseSuppression: true
+                    }
+                });
+                console.log('获取新的音频流');
+            }
             
             this.audioContext = new (window.AudioContext || window.webkitAudioContext)({
                 sampleRate: 16000
             });
             
-            const source = this.audioContext.createMediaStreamSource(stream);
+            const source = this.audioContext.createMediaStreamSource(this.stream);
             const processor = this.audioContext.createScriptProcessor(4096, 1, 1);
             
             processor.onaudioprocess = (event) => {
@@ -343,9 +351,13 @@ class AudioProcessor {
             source.connect(processor);
             processor.connect(this.audioContext.destination);
             
+            // 保存处理器引用以便后续清理
+            this.processor = processor;
+            this.source = source;
+            
             this.isRecording = true;
             this.onStatusUpdate('等待语音输入...', 'ready');
-
+        
             // 在startRecording方法的最后添加
             if (this.adaptiveThreshold && this.noiseCalibrationSamples.length === 0) {
                 this.onStatusUpdate('正在校准背景噪音，请保持安静...', 'calibrating');
@@ -364,6 +376,17 @@ class AudioProcessor {
     stopRecording() {
         console.log('开始停止录音...');
         
+        // 断开音频节点连接
+        if (this.source) {
+            this.source.disconnect();
+            this.source = null;
+        }
+        
+        if (this.processor) {
+            this.processor.disconnect();
+            this.processor = null;
+        }
+        
         // 停止所有音频轨道
         if (this.stream) {
             this.stream.getTracks().forEach(track => {
@@ -400,6 +423,10 @@ class AudioProcessor {
         this.consecutiveFramesCount = 0;
         this.frameBuffer = [];
         
+        // 重置校准状态，确保下次启动时重新校准
+        this.noiseCalibrationSamples = [];
+        this.isCalibrated = false;
+        
         this.onStatusUpdate('录音已完全停止', 'stopped');
         console.log('录音已完全停止，所有资源已释放');
     }
diff --git a/src/index.html b/src/index.html
index 49d0af3..0809ed4 100644
--- a/src/index.html
+++ b/src/index.html
@@ -219,6 +219,67 @@
             box-shadow: 0 6px 20px rgba(34, 197, 94, 0.5);
         }
         
+        #startButton.connecting {
+            background: rgba(255, 193, 7, 0.9);
+            cursor: not-allowed;
+        }
+        
+        #startButton.connecting:hover {
+            background: rgba(255, 193, 7, 0.9);
+            transform: none;
+        }
+        
+        #startButton.calling {
+            background: rgba(255, 193, 7, 0.9);
+            animation: pulse 2s infinite;
+        }
+        
+        #startButton.calling:hover {
+            background: rgba(255, 193, 7, 0.95);
+            transform: scale(1.05);
+        }
+        
+        @keyframes pulse {
+            0% {
+                box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3);
+            }
+            50% {
+                box-shadow: 0 6px 25px rgba(255, 193, 7, 0.6);
+            }
+            100% {
+                box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3);
+            }
+        }
+        
+        .audio-status {
+            position: absolute;
+            top: 20px;
+            left: 50%;
+            transform: translateX(-50%);
+            background: rgba(0, 0, 0, 0.7);
+            color: white;
+            padding: 8px 16px;
+            border-radius: 20px;
+            font-size: 14px;
+            z-index: 1000;
+            transition: all 0.3s ease;
+        }
+        
+        .audio-status.connecting {
+            background: rgba(255, 193, 7, 0.9);
+            color: #000;
+        }
+        
+        .audio-status.connected {
+            background: rgba(40, 167, 69, 0.9);
+            color: white;
+        }
+        
+        .audio-status.error {
+            background: rgba(220, 53, 69, 0.9);
+            color: white;
+        }
+        
         #startButton svg {
             width: 24px;
             height: 24px;
@@ -251,8 +312,8 @@
         </header>
 
         <div class="main-content">
-            <!-- 隐藏的音频状态显示 -->
-            <div class="audio-status" style="display: none;">
+            <!-- 音频状态显示 - 显示状态文本 -->
+            <div class="audio-status">
                 <div class="status-indicator">
                     <span id="audioStatus">未连接</span>
                 </div>
@@ -288,9 +349,22 @@
             <!-- 控制按钮 - 悬浮在视频上方 -->
             <div class="controls">
                 <button id="startButton" class="btn btn-primary" title="开始通话">
-                    <svg viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+                    <!-- 默认通话图标 -->
+                    <svg id="callIcon" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                         <path d="M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2c.27-.27.67-.36 1.02-.24 1.12.37 2.33.57 3.57.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1-9.39 0-17-7.61-17-17 0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.25.2 2.45.57 3.57.11.35.03.74-.25 1.02l-2.2 2.2z" fill="white"/>
                     </svg>
+                    <!-- 通话中图标（初始隐藏） -->
+                    <svg id="callingIcon" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" style="display: none;">
+                        <circle cx="12" cy="12" r="3" fill="white">
+                            <animate attributeName="r" values="3;5;3" dur="1.5s" repeatCount="indefinite"/>
+                            <animate attributeName="opacity" values="1;0.5;1" dur="1.5s" repeatCount="indefinite"/>
+                        </circle>
+                        <circle cx="12" cy="12" r="8" stroke="white" stroke-width="2" fill="none" opacity="0.6">
+                            <animate attributeName="r" values="8;12;8" dur="2s" repeatCount="indefinite"/>
+                            <animate attributeName="opacity" values="0.6;0.2;0.6" dur="2s" repeatCount="indefinite"/>
+                        </circle>
+                        <path d="M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2c.27-.27.67-.36 1.02-.24 1.12.37 2.33.57 3.57.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1-9.39 0-17-7.61-17-17 0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.25.2 2.45.57 3.57.11.35.03.74-.25 1.02l-2.2 2.2z" fill="white" opacity="0.8"/>
+                    </svg>
                 </button>
                 <button id="stopButton" class="btn btn-danger" disabled title="结束通话">
                     <svg viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
diff --git a/src/index.js b/src/index.js
index 6f82154..1a16f3f 100644
--- a/src/index.js
+++ b/src/index.js
@@ -9,6 +9,8 @@ class WebRTCChat {
     constructor() {
         console.log('WebRTCChat 构造函数开始执行');
         
+
+        
         // 初始化历史消息（异步）
         this.initializeHistory();
         
@@ -20,6 +22,7 @@ class WebRTCChat {
         this.audioChunks = [];
         this.videoMapping = {};
         this.defaultVideo = 'chang.mp4';
+        this.interactionVideo = 'chang.mp4';
         this.currentVideoTag = 'default';
         this.currentVideo = null;
         this.videoStreams = new Map(); // 存储不同视频的MediaStream
@@ -147,6 +150,13 @@ class WebRTCChat {
             this.logMessage('通话已开始', 'success');
             this.startDefaultVideoStream();
         });
+
+        // 场景切换处理
+        this.socket.on('scene-switched', (data) => {
+            this.logMessage(`场景已切换到: ${data.currentScene}`, 'info');
+            // 移除自动清除缓存和播放视频的逻辑
+            // 现在依赖页面刷新来处理缓存清除
+        });
     }
 
     async initializeHistory() {
@@ -163,6 +173,8 @@ class WebRTCChat {
             const response = await fetch('/api/video-mapping');
             const data = await response.json();
             this.videoMapping = data.mapping;
+            this.interactionVideo = data.mapping['8-4-sh'];
+            this.defaultVideo = data.mapping["default"];
             this.logMessage('视频映射加载成功', 'success');
         } catch (error) {
             this.logMessage('加载视频映射失败: ' + error.message, 'error');
@@ -429,7 +441,8 @@ class WebRTCChat {
     // 在应用初始化时预加载常用视频
     async preloadCommonVideos() {
         // 获取所有可能需要的视频
-        const videosToPreload = new Set(['chang.mp4']);
+        console.log("default video, interaction video", [this.defaultVideo, this.interactionVideo])
+        const videosToPreload = new Set([this.defaultVideo, this.interactionVideo]);
         
         // 添加视频映射中的所有视频
         // Object.values(this.videoMapping).forEach(video => {
@@ -801,6 +814,9 @@ class WebRTCChat {
 
     async startCall() {
         try {
+            // 切换到通话中图标
+            this.switchToCallingIcon();
+            
             // 添加更详细的错误处理
             console.log('开始请求麦克风权限...');
             this.localStream = await navigator.mediaDevices.getUserMedia({
@@ -810,8 +826,8 @@ class WebRTCChat {
             console.log('麦克风权限获取成功');
             
             await this.createPeerConnection();
-            this.startVoiceRecording()
-            // this.audioProcessor.startRecording()
+            await this.startVoiceRecording();
+            
             this.startButton.disabled = true;
             this.stopButton.disabled = false;
             
@@ -831,12 +847,25 @@ class WebRTCChat {
             // 通知服务器通话开始
             this.socket.emit('call-started');
             
+            // 开始播放当前场景的默认视频
+            await this.startDefaultVideoStream();
+            
         } catch (error) {
+            // 如果出错，恢复到默认图标
+            this.switchToDefaultIcon();
             this.logMessage('无法访问麦克风: ' + error.message, 'error');
         }
     }
 
     stopCall() {
+        // 恢复到默认图标
+        this.switchToDefaultIcon();
+        
+        // 发送用户关闭连接事件到后端
+        if (this.socket && this.socket.connected) {
+            this.socket.emit('user-disconnect');
+        }
+        
         // 停止音频处理器
         if (this.audioProcessor) {
             this.audioProcessor.stopRecording();
@@ -855,23 +884,59 @@ class WebRTCChat {
             this.peerConnection = null;
         }
         
-        // 停止当前视频流
+        // 直接刷新页面清除所有缓存
+        console.log('通话已结束，正在刷新页面清除缓存...');
+        window.location.reload();
+    }
+
+    // 清除视频缓存的方法
+    clearVideoCache() {
+        // 清除视频元素缓存
+        if (this.recordedVideo) {
+            this.recordedVideo.src = '';
+            this.recordedVideo.srcObject = null;
+            this.recordedVideo.load(); // 重新加载空视频
+            // 暂停视频播放
+            this.recordedVideo.pause();
+        }
+        
+        if (this.recordedVideoBuffer) {
+            this.recordedVideoBuffer.src = '';
+            this.recordedVideoBuffer.srcObject = null;
+            this.recordedVideoBuffer.load();
+            this.recordedVideoBuffer.pause();
+        }
+        
+        // 清除视频流缓存
         if (this.currentVideoStream) {
             this.currentVideoStream.getTracks().forEach(track => track.stop());
             this.currentVideoStream = null;
         }
         
-        this.recordedVideo.srcObject = null;
+        // 清除视频流映射缓存
+        this.videoStreams.clear();
+        
+        // 重置视频相关状态
         this.currentVideo = null;
+        this.activeVideoElement = 'main';
+        this.videoSender = null;
         
-        this.startButton.disabled = false;
-        this.stopButton.disabled = true;
+        this.logMessage('视频缓存已清除，视频已停止', 'info');
+    }
+
+    // 添加清除API缓存的方法
+    async clearApiCache() {
+        // 重新加载视频映射
+        this.videoMapping = {};
+        await this.loadVideoMapping();
         
-        // 隐藏结束通话按钮
-        this.stopButton.classList.remove('show');
+        // 重新加载默认视频
+        await this.loadDefaultVideo();
         
-        this.updateAudioStatus('未连接', 'disconnected');
-        this.logMessage('音频通话已结束，所有资源已释放', 'info');
+        // 重新加载视频列表
+        await this.loadVideoList();
+        
+        this.logMessage('API缓存已清除并重新加载', 'info');
     }
 
     async createPeerConnection() {
@@ -1041,16 +1106,12 @@ class WebRTCChat {
 
     // 修改：使用音频处理器的语音录制功能
     async startVoiceRecording() {
-        const success = await this.audioProcessor.startRecording();
+        const success = await this.audioProcessor.startRecording(this.localStream);
         
         if (success) {
-            // this.startVoiceButton.disabled = true;
-            // this.stopVoiceButton.disabled = false;
-            // this.startVoiceButton.classList.add('recording');
-            // this.voiceStatus.textContent = '等待语音输入...';
             this.logMessage('高级语音录制已启动', 'success');
         } else {
-            // this.voiceStatus.textContent = '录音启动失败';
+            this.logMessage('录音启动失败', 'error');
         }
     }
 
@@ -1154,6 +1215,34 @@ class WebRTCChat {
         this.logMessage(`视频流状态: ${JSON.stringify(status)}`, 'info');
         return status;
     }
+    
+    // 添加图标切换方法
+    switchToCallingIcon() {
+        const callIcon = document.getElementById('callIcon');
+        const callingIcon = document.getElementById('callingIcon');
+        const startButton = this.startButton;
+        
+        if (callIcon && callingIcon && startButton) {
+            callIcon.style.display = 'none';
+            callingIcon.style.display = 'block';
+            startButton.classList.add('calling');
+            startButton.title = '通话中...';
+        }
+    }
+    
+    switchToDefaultIcon() {
+        const callIcon = document.getElementById('callIcon');
+        const callingIcon = document.getElementById('callingIcon');
+        const startButton = this.startButton;
+        
+        if (callIcon && callingIcon && startButton) {
+            callIcon.style.display = 'block';
+            callingIcon.style.display = 'none';
+            startButton.classList.remove('calling');
+            startButton.title = '开始通话';
+            startButton.disabled = false;
+        }
+    }
 
     async testAllVideoFiles() {
         this.logMessage('开始测试所有视频文件...', 'info');
diff --git a/src/minimaxi_stream.js b/src/minimaxi_stream.js
index 68cc3bb..ecc757b 100644
--- a/src/minimaxi_stream.js
+++ b/src/minimaxi_stream.js
@@ -65,19 +65,19 @@ async function processAudioQueue() {
     // 如果当前没有音频在播放，且队列中有音频
     if (!isPlaying && audioQueue.length > 0) {
       const audioItem = audioQueue.shift();
-      const sayName = 'say-5s-m-sw'
-      const targetVideo = 'd-0.mp4'
+      const sayName = '8-4-sh'
+      const targetVideo = window.webrtcApp.interactionVideo
       // 如果是第一个音频片段，触发视频切换
-      // if (isFirstChunk && sayName != window.webrtcApp.currentVideoTag && window.webrtcApp && window.webrtcApp.switchVideoWithReplaceTrack) {
-      //   try {
-      //     console.log('--------------触发视频切换:', sayName);
-      //     window.webrtcApp.switchVideoWithReplaceTrack(targetVideo, 'audio', 'say-5s-m-sw');
-      //     isFirstChunk = false;
-      //     window.webrtcApp.currentVideoTag = sayName;
-      //   } catch (error) {
-      //     console.error('视频切换失败:', error);
-      //   }
-      // }
+      if (isFirstChunk && sayName != window.webrtcApp.currentVideoTag && window.webrtcApp && window.webrtcApp.switchVideoWithReplaceTrack) {
+        try {
+          console.log('--------------触发视频切换:', sayName);
+          window.webrtcApp.switchVideoWithReplaceTrack(targetVideo, 'audio', '8-4-sh');
+          isFirstChunk = false;
+          window.webrtcApp.currentVideoTag = sayName;
+        } catch (error) {
+          console.error('视频切换失败:', error);
+        }
+      }
       await playAudioData(audioItem.audioData);
     } else {
       // 等待一小段时间再检查
@@ -89,11 +89,11 @@ async function processAudioQueue() {
   const text = 'default'
   // await new Promise(resolve => setTimeout(resolve, 500));
   console.log("音频结束------------------------：", window.webrtcApp.currentVideoTag, isPlaying)
-  // if (window.webrtcApp.currentVideoTag != text) {
-  //   isFirstChunk = true
-  //   window.webrtcApp.currentVideoTag = text
-  //   window.webrtcApp.switchVideoWithReplaceTrack(window.webrtcApp.defaultVideo, 'audio', text);
-  // }
+  if (window.webrtcApp.currentVideoTag != text) {
+    isFirstChunk = true
+    window.webrtcApp.currentVideoTag = text
+    window.webrtcApp.switchVideoWithReplaceTrack(window.webrtcApp.defaultVideo, 'audio', text);
+  }
   console.log('音频队列处理完成');
 }
 
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