diff --git a/taoyao-client-android/taoyao/media/src/main/java/com/acgist/taoyao/media/config/MediaVideoProperties.java b/taoyao-client-android/taoyao/media/src/main/java/com/acgist/taoyao/media/config/MediaVideoProperties.java
index 0d204b3..9c26c08 100644
--- a/taoyao-client-android/taoyao/media/src/main/java/com/acgist/taoyao/media/config/MediaVideoProperties.java
+++ b/taoyao-client-android/taoyao/media/src/main/java/com/acgist/taoyao/media/config/MediaVideoProperties.java
@@ -28,7 +28,7 @@ public class MediaVideoProperties {
      */
     private Format format;
     /**
-     * 码率：600|1200|1500|1800
+     * 码率：400|800|1200|1600
      * 码率影响画质
      */
     private Integer bitrate;
diff --git a/taoyao-client-media/src/Config.js b/taoyao-client-media/src/Config.js
index b1d632c..007cc2a 100644
--- a/taoyao-client-media/src/Config.js
+++ b/taoyao-client-media/src/Config.js
@@ -73,21 +73,32 @@ module.exports = {
     // Router配置：https://mediasoup.org/documentation/v3/mediasoup/api/#RouterOptions
     routerOptions: {
       mediaCodecs: [
-        // OPUS PCMA PCMU G722
         {
           kind     : "audio",
           mimeType : "audio/opus",
           clockRate: 48000,
           channels : 2,
         },
+        {
+          kind     : "audio",
+          mimeType : "audio/pcmu",
+          clockRate: 8000,
+          channels : 1,
+        },
+        {
+          kind     : "audio",
+          mimeType : "audio/pcma",
+          clockRate: 8000,
+          channels : 1,
+        },
         {
           kind      : "video",
           mimeType  : "video/VP8",
           clockRate : 90000,
           parameters: {
-            "x-google-start-bitrate": 1000,
+            "x-google-start-bitrate": 400,
             // "x-google-min-bitrate": 800,
-            // "x-google-max-bitrate": 1800,
+            // "x-google-max-bitrate": 1600,
           },
         },
         {
@@ -96,9 +107,9 @@ module.exports = {
           clockRate : 90000,
           parameters: {
             "profile-id"            : 2,
-            "x-google-start-bitrate": 1000,
+            "x-google-start-bitrate": 400,
             // "x-google-min-bitrate": 800,
-            // "x-google-max-bitrate": 1800,
+            // "x-google-max-bitrate": 1600,
           },
         },
         {
@@ -109,9 +120,9 @@ module.exports = {
             "packetization-mode"     : 1,
             "profile-level-id"       : "4d0032",
             "level-asymmetry-allowed": 1,
-            "x-google-start-bitrate" : 1000,
+            "x-google-start-bitrate" : 400,
             // "x-google-min-bitrate": 800,
-            // "x-google-max-bitrate": 1800,
+            // "x-google-max-bitrate": 1600,
           },
         },
         {
@@ -122,9 +133,9 @@ module.exports = {
             "packetization-mode"     : 1,
             "profile-level-id"       : "42e01f",
             "level-asymmetry-allowed": 1,
-            "x-google-start-bitrate" : 1000,
+            "x-google-start-bitrate" : 400,
             // "x-google-min-bitrate": 800,
-            // "x-google-max-bitrate": 1800,
+            // "x-google-max-bitrate": 1600,
           },
         },
       ],
@@ -154,10 +165,10 @@ module.exports = {
           announcedIp: process.env.MEDIASOUP_ANNOUNCED_IP || "127.0.0.1",
         },
       ],
-      initialAvailableOutgoingBitrate: 1000000,
+      initialAvailableOutgoingBitrate: 400000,
       minimumAvailableOutgoingBitrate: 800000,
       maxSctpMessageSize             : 262144,
-      maxIncomingBitrate             : 1800000,
+      maxIncomingBitrate             : 1600000,
     },
     // PlainTransport配置：https://mediasoup.org/documentation/v3/mediasoup/api/#PlainTransportOptions
     plainTransportOptions: {
diff --git a/taoyao-client-media/src/Taoyao.js b/taoyao-client-media/src/Taoyao.js
index f2a4c05..89f6eb2 100644
--- a/taoyao-client-media/src/Taoyao.js
+++ b/taoyao-client-media/src/Taoyao.js
@@ -1758,13 +1758,9 @@ class Taoyao {
     };
     me.push(message);
     const {
-      minOutgoingBitrate,
       maxOutgoingBitrate,
       maxIncomingBitrate,
     } = config.mediasoup.webRtcTransportOptions;
-    if(minOutgoingBitrate) {
-      await transport.setMinOutgoingBitrate(minOutgoingBitrate);
-    }
     if(maxOutgoingBitrate) {
       await transport.setMaxOutgoingBitrate(maxOutgoingBitrate);
     }
diff --git a/taoyao-client-web/src/components/Taoyao.js b/taoyao-client-web/src/components/Taoyao.js
index 3c51003..c279482 100644
--- a/taoyao-client-web/src/components/Taoyao.js
+++ b/taoyao-client-web/src/components/Taoyao.js
@@ -2793,9 +2793,9 @@ class Taoyao extends RemoteClient {
     }
     const track = videoTrack || await me.getVideoTrack();
     const codecOptions = {
+      videoGoogleStartBitrate: 400,
       videoGoogleMinBitrate  : 800,
-      videoGoogleMaxBitrate  : 1800,
-      videoGoogleStartBitrate: 1000,
+      videoGoogleMaxBitrate  : 1600,
     };
     let codec;
     if(me.forceVP8) {
diff --git a/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/config/MediaVideoProperties.java b/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/config/MediaVideoProperties.java
index 4e22fb4..3113966 100644
--- a/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/config/MediaVideoProperties.java
+++ b/taoyao-signal-server/taoyao-boot/src/main/java/com/acgist/taoyao/boot/config/MediaVideoProperties.java
@@ -41,7 +41,7 @@ public class MediaVideoProperties {
     
     @Schema(title = "格式", description = "格式", example = "VP8|VP9|H264|H265")
     private Format format;
-    @Schema(title = "码率", description = "码率影响画质", example = "600|1200|1500|1800")
+    @Schema(title = "码率", description = "码率影响画质", example = "400|800|1200|1600")
     private Integer bitrate;
     @Schema(title = "帧率", description = "帧率影响流畅", example = "15|18|20|24|30|45")
     private Integer frameRate;
diff --git a/taoyao-signal-server/taoyao-server/src/main/resources/application.yml b/taoyao-signal-server/taoyao-server/src/main/resources/application.yml
index c854d9c..bae7dbb 100644
--- a/taoyao-signal-server/taoyao-server/src/main/resources/application.yml
+++ b/taoyao-signal-server/taoyao-server/src/main/resources/application.yml
@@ -121,7 +121,7 @@ taoyao:
       # 4K：UD=UHD=4K
       ud-video:
         format: H264
-        bitrate: 1800
+        bitrate: 2000
         frame-rate: 45
         resolution: 4096*2160
       # 2K：QD=QHD=2K
@@ -139,13 +139,13 @@ taoyao:
       # 高清视频：HD=720P
       hd-video:
         format: H264
-        bitrate: 1000
+        bitrate: 800
         frame-rate: 18
         resolution: 1280*720
       # 标清视频：SD=480P
       sd-video:
         format: H264
-        bitrate: 800
+        bitrate: 400
         frame-rate: 15
         resolution: 720*480
   # FFmpeg配置