diff --git a/ClientDemo/MainWindow.xaml.cs b/ClientDemo/MainWindow.xaml.cs
index 1b8cd87..3d9fa9e 100644
--- a/ClientDemo/MainWindow.xaml.cs
+++ b/ClientDemo/MainWindow.xaml.cs
@@ -66,9 +66,9 @@ namespace ClientDemo
         public void StopVideo()
         {
             lTRTCCloud.stopRemoteView("53245345", TRTCVideoStreamType.TRTCVideoStreamTypeBig);
-            RemoveCustomVideoView(main, "666", TRTCVideoStreamType.TRTCVideoStreamTypeBig, false);
+            RemoveCustomVideoView(main, "53245345", TRTCVideoStreamType.TRTCVideoStreamTypeBig, false);
             lTRTCCloud.stopRemoteView("53245345", TRTCVideoStreamType.TRTCVideoStreamTypeSub);
-            RemoveCustomVideoView(sub, "666", TRTCVideoStreamType.TRTCVideoStreamTypeSub, false);
+            RemoveCustomVideoView(sub, "53245345", TRTCVideoStreamType.TRTCVideoStreamTypeSub, false);
         }
         private static void RemoveCustomVideoView(Panel parent, string userId, TRTCVideoStreamType streamType, bool local = false)
         {
diff --git a/JianGongYun/TRTC/LiveClassroom.cs b/JianGongYun/TRTC/LiveClassroom.cs
index 78d00f8..dbbafec 100644
--- a/JianGongYun/TRTC/LiveClassroom.cs
+++ b/JianGongYun/TRTC/LiveClassroom.cs
@@ -28,8 +28,10 @@ namespace JianGongYun.TRTC
     /// </summary>
     public static class LiveClassroom
     {
-        const uint SDKAppID = 1400472092;
-        const string SDKAppKEY = "75907eef24093acc1d2cc20ed1eb95c50cd6728c8f5e0d98b17c5180824eee78";
+        const uint SDKAppID = 1400463444;
+        const string SDKAppKEY = "6ee2586282eb8ab5bff3f917b44500c4ffd9bbd3d820258b1fa8cdd470cfd1ee";
+        const uint LIVEAppID = 1252883401;
+        const uint LIVEBizid = 126866;
         /// <summary>
         /// TRTC实例
         /// </summary>
@@ -90,7 +92,9 @@ namespace JianGongYun.TRTC
                 userSig = GenTestUserSig(CurrentClassroomEntity.TeacherId),
                 roomId = 0,//使用strRoomId
                 strRoomId = CurrentClassroomEntity.TeacherId,
-                role = TRTCRoleType.TRTCRoleAnchor
+                role = TRTCRoleType.TRTCRoleAnchor,
+                streamId = CurrentClassroomEntity.TeacherId,//旁路CDN流名字为教师id
+                userDefineRecordId= CurrentClassroomEntity.TeacherId//指定id录制教师
             };
             lTRTCCloud.enterRoom(ref roomPars, TRTCAppScene.TRTCAppSceneLIVE);//创建房间
 
@@ -292,6 +296,33 @@ namespace JianGongYun.TRTC
             lTRTCCloud.selectScreenCaptureTarget(ref current, ref rect, ref property);
         }
 
+        //开启音频后调用
+        public static void StartMUX(bool stop = false)
+        {
+            if (stop)
+            {
+                lTRTCCloud.setMixTranscodingConfig(null);
+                return;
+            }
+            var resolution = settingWindowViewModel.SubEncParams.videoResolution.ToString().Split('_');//屏幕分辨率，本地储存分辨率以屏幕分享分辨率为基准
+            lTRTCCloud.setMixTranscodingConfig(new TRTCTranscodingConfig  //设置混流
+            {
+                mode = TRTCTranscodingConfigMode.TRTCTranscodingConfigMode_Template_ScreenSharing,
+                appId = LIVEAppID,
+                bizId = LIVEBizid,
+                videoWidth = uint.Parse(resolution[1]),
+                videoHeight = uint.Parse(resolution[2]),
+                videoBitrate = settingWindowViewModel.SubEncParams.videoBitrate,
+                videoFramerate = settingWindowViewModel.SubEncParams.videoFps,
+                videoGOP = 3,
+                backgroundColor = 0x202020,
+                audioSampleRate = 48000,
+                audioBitrate = 128,
+                audioChannels = 2
+
+            });
+        }
+
         /// <summary>
         /// 启动麦克风
         /// </summary>
@@ -302,6 +333,8 @@ namespace JianGongYun.TRTC
                 liveWinMode.MicRunning = true;
                 lTRTCCloud.startLocalAudio(settingWindowViewModel.LiveAudioLevel);
                 StartRecordAudio();
+
+                StartMUX();
             }
         }
 
@@ -553,6 +586,7 @@ namespace JianGongYun.TRTC
                 prc.WaitForExit();
                 CurrentLiveWindow.Dispatcher.Invoke(new Action(() =>
                 {
+                    CurrentLiveWindow.Close();
                     NoticeManager.NotifiactionShow.AddNotifiaction(new NotifiactionModel()
                     {
                         Title = "提醒",
diff --git a/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs b/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs
index 86c8702..bda8fe4 100644
--- a/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs
+++ b/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs
@@ -798,7 +798,7 @@ namespace JianGongYun.TRTC.ViewModels
             {
                 var videoResolution = TRTCVideoResolution.TRTCVideoResolution_1920_1080;
                 uint videoBitrate = 2000;
-                switch (LiveMainLevel)
+                switch (LiveSubLevel)
                 {
                     case LiveLevelEnum.Low:
                         videoResolution = TRTCVideoResolution.TRTCVideoResolution_960_540;
diff --git a/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs b/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
index 7e1cb26..0134eb5 100644
--- a/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
+++ b/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
@@ -168,6 +168,9 @@ namespace JianGongYun.TRTC.Windows
                 LiveClassroom.StopMic();
                 LiveClassroom.StopVideoMain(AfterLiveViewWrap);
                 LiveClassroom.StopVideoSub(AfterLiveSubViewWrap);
+
+                this.Hide();
+                LiveClassroom.CallerWindow.Show();//还原调用者窗口
             }
 
         }