diff --git a/server.js b/server.js
index d40aa98..68de804 100644
--- a/server.js
+++ b/server.js
@@ -88,15 +88,15 @@ const connectedClients = new Map();
 // 视频映射配置
 const videoMapping = {
   // 'say-6s-m-e': '1-m.mp4',
-  'default': 'bd-1.mp4',
+  'default': 'chane.mp4',
   // 'say-5s-amplitude': '2.mp4',
   // 'say-5s-m-e': '4.mp4',
-  'say-5s-m-sw': 'd-0.mp4',
+  // 'say-5s-m-sw': 'd-0.mp4',
   // 'say-3s-m-sw': '6.mp4',
 };
 
 // 默认视频流配置
-const DEFAULT_VIDEO = 'bd-1.mp4';
+const DEFAULT_VIDEO = 'chang.mp4';
 const INTERACTION_TIMEOUT = 10000; // 10秒后回到默认视频
 
 // 获取视频列表
diff --git a/src/config.js b/src/config.js
index 5758ed7..e4e1d01 100644
--- a/src/config.js
+++ b/src/config.js
@@ -16,7 +16,7 @@ export const config = {
   audio: {
     model: 'speech-02-hd',
     voiceSetting: {
-      voice_id: 'yantu-qinggang-3',
+      voice_id: 'yantu-qinggang-demo2-male-4',
       speed: 1,
       vol: 1,
       pitch: 0,
diff --git a/src/index.js b/src/index.js
index 13a423e..c280051 100644
--- a/src/index.js
+++ b/src/index.js
@@ -19,7 +19,7 @@ class WebRTCChat {
         this.mediaRecorder = null;
         this.audioChunks = [];
         this.videoMapping = {};
-        this.defaultVideo = 'bd-1.mp4';
+        this.defaultVideo = 'chang.mp4';
         this.currentVideoTag = 'default';
         this.currentVideo = null;
         this.videoStreams = new Map(); // 存储不同视频的MediaStream
@@ -429,7 +429,7 @@ 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(['bd-1.mp4']);
+        const videosToPreload = new Set(['chang.mp4']);
         
         // 添加视频映射中的所有视频
         // Object.values(this.videoMapping).forEach(video => {
@@ -437,7 +437,7 @@ class WebRTCChat {
         // });
         
         // 特别确保添加了5.mp4（从日志看这是常用视频）
-        videosToPreload.add('d-0.mp4');
+        // videosToPreload.add('d-0.mp4');
         
         // 并行预加载，提高效率
         const preloadPromises = Array.from(videosToPreload).map(async (videoFile) => {
diff --git a/src/minimaxi_stream.js b/src/minimaxi_stream.js
index 047672e..68cc3bb 100644
--- a/src/minimaxi_stream.js
+++ b/src/minimaxi_stream.js
@@ -68,16 +68,16 @@ async function processAudioQueue() {
       const sayName = 'say-5s-m-sw'
       const targetVideo = 'd-0.mp4'
       // 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', 'say-5s-m-sw');
+      //     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');
 }
 
diff --git a/videos/chang.mp4 b/videos/chang.mp4
new file mode 100644
index 0000000..94cfa5c
Binary files /dev/null and b/videos/chang.mp4 differ