diff --git a/zh-cn/application-dev/reference/apis/js-apis-audio.md b/zh-cn/application-dev/reference/apis/js-apis-audio.md
index 8e4140b0a36a351b4b7f603e6c1650346fe6a8a2..5cbada92e9bcffa7e92423848b3c2d5c3b4030ae 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-audio.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-audio.md
@@ -161,6 +161,8 @@ createAudioCapturer(options: AudioCapturerOptions, callback: AsyncCallback<Audio
 
 **系统能力：** SystemCapability.Multimedia.Audio.Capturer
 
+**需要权限：** ohos.permission.MICROPHONE
+
 **参数：**
 
 | 参数名   | 类型                                            | 必填 | 说明             |
@@ -207,6 +209,8 @@ createAudioCapturer(options: AudioCapturerOptions): Promise<AudioCapturer\>
 
 **系统能力：** SystemCapability.Multimedia.Audio.Capturer
 
+**需要权限：** ohos.permission.MICROPHONE
+
 **参数：**
 
 | 参数名  | 类型                                           | 必填 | 说明             |
@@ -2149,12 +2153,13 @@ getStreamManager(callback: AsyncCallback\<AudioStreamManager>): void
 
 ```js
 var audioManager = audio.getAudioManager();
+let audioStreamManager;
 audioManager.getStreamManager((err, data) => {
   if (err) {
     console.error(`getStreamManager : Error: ${err}`);
   } else {
     console.info('getStreamManager : Success : SUCCESS');
-    let audioStreamManager = data;
+    audioStreamManager = data;
   }
 });
 ```
@@ -2343,23 +2348,6 @@ setVolume(volumeType: AudioVolumeType, volume: number, callback: AsyncCallback&l
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.setVolume(audio.AudioVolumeType.MEDIA, 10, (err) => {
   if (err) {
     console.error(`Failed to set the volume. ${err}`);
@@ -2399,24 +2387,6 @@ setVolume(volumeType: AudioVolumeType, volume: number): Promise&lt;void&gt;
 **示例：**
 
 ```js
-
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.setVolume(audio.AudioVolumeType.MEDIA, 10).then(() => {
   console.info('Promise returned to indicate a successful volume setting.');
 });
@@ -2442,23 +2412,6 @@ getVolume(volumeType: AudioVolumeType, callback: AsyncCallback&lt;number&gt;): v
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.getVolume(audio.AudioVolumeType.MEDIA, (err, value) => {
   if (err) {
     console.error(`Failed to obtain the volume. ${err}`);
@@ -2493,23 +2446,6 @@ getVolume(volumeType: AudioVolumeType): Promise&lt;number&gt;
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.getVolume(audio.AudioVolumeType.MEDIA).then((value) => {
   console.info(`Promise returned to indicate that the volume is obtained ${value}.`);
 });
@@ -2535,23 +2471,6 @@ getMinVolume(volumeType: AudioVolumeType, callback: AsyncCallback&lt;number&gt;)
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.getMinVolume(audio.AudioVolumeType.MEDIA, (err, value) => {
   if (err) {
     console.error(`Failed to obtain the minimum volume. ${err}`);
@@ -2586,23 +2505,6 @@ getMinVolume(volumeType: AudioVolumeType): Promise&lt;number&gt;
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.getMinVolume(audio.AudioVolumeType.MEDIA).then((value) => {
   console.info(`Promised returned to indicate that the minimum volume is obtained ${value}.`);
 });
@@ -2628,23 +2530,6 @@ getMaxVolume(volumeType: AudioVolumeType, callback: AsyncCallback&lt;number&gt;)
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.getMaxVolume(audio.AudioVolumeType.MEDIA, (err, value) => {
   if (err) {
     console.error(`Failed to obtain the maximum volume. ${err}`);
@@ -2679,23 +2564,6 @@ getMaxVolume(volumeType: AudioVolumeType): Promise&lt;number&gt;
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.getMaxVolume(audio.AudioVolumeType.MEDIA).then((data) => {
   console.info('Promised returned to indicate that the maximum volume is obtained.');
 });
@@ -2726,23 +2594,6 @@ mute(volumeType: AudioVolumeType, mute: boolean, callback: AsyncCallback&lt;void
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.mute(audio.AudioVolumeType.MEDIA, true, (err) => {
   if (err) {
     console.error(`Failed to mute the stream. ${err}`);
@@ -2782,23 +2633,6 @@ mute(volumeType: AudioVolumeType, mute: boolean): Promise&lt;void&gt;
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.mute(audio.AudioVolumeType.MEDIA, true).then(() => {
   console.info('Promise returned to indicate that the stream is muted.');
 });
@@ -2824,23 +2658,6 @@ isMute(volumeType: AudioVolumeType, callback: AsyncCallback&lt;boolean&gt;): voi
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.isMute(audio.AudioVolumeType.MEDIA, (err, value) => {
   if (err) {
     console.error(`Failed to obtain the mute status. ${err}`);
@@ -2875,23 +2692,6 @@ isMute(volumeType: AudioVolumeType): Promise&lt;boolean&gt;
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-var audioGroupManager;
-async function getGroupManager(){
-  let value = await audioManager.getVolumeGroups(audio.LOCAL_NETWORK_ID);
-  if (value.length > 0) {
-    let groupid = value[0].groupId;
-    audioManager.getGroupManager(groupid, (err, value) => {
-      if (err) {
-        console.error(`Failed to obtain the volume group infos list. ${err}`);
-        return;
-      }
-      audioGroupManager = value
-      console.info('Callback invoked to indicate that the volume group infos list is obtained.');
-    });
-  }
-}
-
 audioGroupManager.isMute(audio.AudioVolumeType.MEDIA).then((value) => {
   console.info(`Promise returned to indicate that the mute status of the stream is obtained ${value}.`);
 });
@@ -2918,17 +2718,6 @@ getCurrentAudioRendererInfoArray(callback: AsyncCallback&lt;AudioRendererChangeI
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
 audioStreamManager.getCurrentAudioRendererInfoArray(async (err, AudioRendererChangeInfoArray) => {
   console.info('getCurrentAudioRendererInfoArray **** Get Callback Called ****');
   if (err) {
@@ -2976,43 +2765,34 @@ getCurrentAudioRendererInfoArray(): Promise&lt;AudioRendererChangeInfoArray&gt;
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
-await audioStreamManager.getCurrentAudioRendererInfoArray().then( function (AudioRendererChangeInfoArray) {
-  console.info(`getCurrentAudioRendererInfoArray ######### Get Promise is called ##########`);
-  if (AudioRendererChangeInfoArray != null) {
-    for (let i = 0; i < AudioRendererChangeInfoArray.length; i++) {
-      let AudioRendererChangeInfo = AudioRendererChangeInfoArray[i];
-      console.info(`StreamId for ${i} is: ${AudioRendererChangeInfo.streamId}`);
-      console.info(`ClientUid for ${i} is: ${AudioRendererChangeInfo.clientUid}`);
-      console.info(`Content ${i} is: ${AudioRendererChangeInfo.rendererInfo.content}`);
-      console.info(`Stream ${i} is: ${AudioRendererChangeInfo.rendererInfo.usage}`);
-      console.info(`Flag ${i} is: ${AudioRendererChangeInfo.rendererInfo.rendererFlags}`); 
-      console.info(`State for ${i} is: ${AudioRendererChangeInfo.rendererState}`);  
-      for (let j = 0;j < AudioRendererChangeInfo.deviceDescriptors.length; j++) {
-        console.info(`Id: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].id}`);
-        console.info(`Type: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].deviceType}`);
-        console.info(`Role: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].deviceRole}`);
-        console.info(`Name: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].name}`);
-        console.info(`Address: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].address}`);
-        console.info(`SampleRates: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].sampleRates[0]}`);
-        console.info(`ChannelCount ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].channelCounts[0]}`);
-        console.info(`ChannelMask: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].channelMasks}`);
+async function getCurrentAudioRendererInfoArray(){
+  await audioStreamManager.getCurrentAudioRendererInfoArray().then( function (AudioRendererChangeInfoArray) {
+    console.info(`getCurrentAudioRendererInfoArray ######### Get Promise is called ##########`);
+    if (AudioRendererChangeInfoArray != null) {
+      for (let i = 0; i < AudioRendererChangeInfoArray.length; i++) {
+        let AudioRendererChangeInfo = AudioRendererChangeInfoArray[i];
+        console.info(`StreamId for ${i} is: ${AudioRendererChangeInfo.streamId}`);
+        console.info(`ClientUid for ${i} is: ${AudioRendererChangeInfo.clientUid}`);
+        console.info(`Content ${i} is: ${AudioRendererChangeInfo.rendererInfo.content}`);
+        console.info(`Stream ${i} is: ${AudioRendererChangeInfo.rendererInfo.usage}`);
+        console.info(`Flag ${i} is: ${AudioRendererChangeInfo.rendererInfo.rendererFlags}`); 
+        console.info(`State for ${i} is: ${AudioRendererChangeInfo.rendererState}`);  
+        for (let j = 0;j < AudioRendererChangeInfo.deviceDescriptors.length; j++) {
+          console.info(`Id: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].id}`);
+          console.info(`Type: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].deviceType}`);
+          console.info(`Role: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].deviceRole}`);
+          console.info(`Name: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].name}`);
+          console.info(`Address: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].address}`);
+          console.info(`SampleRates: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].sampleRates[0]}`);
+          console.info(`ChannelCount ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].channelCounts[0]}`);
+          console.info(`ChannelMask: ${i} : ${AudioRendererChangeInfo.deviceDescriptors[j].channelMasks}`);
+        }
       }
     }
-  }
-}).catch((err) => {
-  console.error(`getCurrentAudioRendererInfoArray :ERROR: ${err}`);
-});
+  }).catch((err) => {
+    console.error(`getCurrentAudioRendererInfoArray :ERROR: ${err}`);
+  });
+}
 ```
 
 ### getCurrentAudioCapturerInfoArray<sup>9+</sup>
@@ -3032,17 +2812,6 @@ getCurrentAudioCapturerInfoArray(callback: AsyncCallback&lt;AudioCapturerChangeI
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
 audioStreamManager.getCurrentAudioCapturerInfoArray(async (err, AudioCapturerChangeInfoArray) => {
   console.info('getCurrentAudioCapturerInfoArray **** Get Callback Called ****');
   if (err) {
@@ -3088,41 +2857,32 @@ getCurrentAudioCapturerInfoArray(): Promise&lt;AudioCapturerChangeInfoArray&gt;
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
-await audioStreamManager.getCurrentAudioCapturerInfoArray().then( function (AudioCapturerChangeInfoArray) {
-  console.info('getCurrentAudioCapturerInfoArray **** Get Promise Called ****');
-  if (AudioCapturerChangeInfoArray != null) {
-    for (let i = 0; i < AudioCapturerChangeInfoArray.length; i++) {
-      console.info(`StreamId for ${i} is: ${AudioCapturerChangeInfoArray[i].streamId}`);
-      console.info(`ClientUid for ${i} is: ${AudioCapturerChangeInfoArray[i].clientUid}`);
-      console.info(`Source for ${i} is: ${AudioCapturerChangeInfoArray[i].capturerInfo.source}`);
-      console.info(`Flag  ${i} is: ${AudioCapturerChangeInfoArray[i].capturerInfo.capturerFlags}`);
-      console.info(`State for ${i} is: ${AudioCapturerChangeInfoArray[i].capturerState}`);  
-      for (let j = 0; j < AudioCapturerChangeInfoArray[i].deviceDescriptors.length; j++) {
-        console.info(`Id: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].id}`);
-        console.info(`Type: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].deviceType}`);
-        console.info(`Role: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].deviceRole}`);
-        console.info(`Name: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].name}`);
-        console.info(`Address: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].address}`);
-        console.info(`SampleRates: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].sampleRates[0]}`);
-        console.info(`ChannelCounts ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].channelCounts[0]}`);
-        console.info(`ChannelMask: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].channelMasks}`);
+async function getCurrentAudioCapturerInfoArray(){
+  await audioStreamManager.getCurrentAudioCapturerInfoArray().then( function (AudioCapturerChangeInfoArray) {
+    console.info('getCurrentAudioCapturerInfoArray **** Get Promise Called ****');
+    if (AudioCapturerChangeInfoArray != null) {
+      for (let i = 0; i < AudioCapturerChangeInfoArray.length; i++) {
+        console.info(`StreamId for ${i} is: ${AudioCapturerChangeInfoArray[i].streamId}`);
+        console.info(`ClientUid for ${i} is: ${AudioCapturerChangeInfoArray[i].clientUid}`);
+        console.info(`Source for ${i} is: ${AudioCapturerChangeInfoArray[i].capturerInfo.source}`);
+        console.info(`Flag  ${i} is: ${AudioCapturerChangeInfoArray[i].capturerInfo.capturerFlags}`);
+        console.info(`State for ${i} is: ${AudioCapturerChangeInfoArray[i].capturerState}`);  
+        for (let j = 0; j < AudioCapturerChangeInfoArray[i].deviceDescriptors.length; j++) {
+          console.info(`Id: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].id}`);
+          console.info(`Type: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].deviceType}`);
+          console.info(`Role: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].deviceRole}`);
+          console.info(`Name: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].name}`);
+          console.info(`Address: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].address}`);
+          console.info(`SampleRates: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].sampleRates[0]}`);
+          console.info(`ChannelCounts ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].channelCounts[0]}`);
+          console.info(`ChannelMask: ${i} : ${AudioCapturerChangeInfoArray[i].deviceDescriptors[j].channelMasks}`);
+        }
       }
     }
-  }
-}).catch((err) => {
-  console.error(`getCurrentAudioCapturerInfoArray :ERROR: ${err}`);
-});
+  }).catch((err) => {
+    console.error(`getCurrentAudioCapturerInfoArray :ERROR: ${err}`);
+  });
+}
 ```
 
 ### on('audioRendererChange')<sup>9+</sup>
@@ -3143,17 +2903,6 @@ on(type: "audioRendererChange", callback: Callback&lt;AudioRendererChangeInfoArr
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
 audioStreamManager.on('audioRendererChange',  (AudioRendererChangeInfoArray) => {
   for (let i = 0; i < AudioRendererChangeInfoArray.length; i++) {
     let AudioRendererChangeInfo = AudioRendererChangeInfoArray[i];
@@ -3195,17 +2944,6 @@ off(type: "audioRendererChange");
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
 audioStreamManager.off('audioRendererChange');
 console.info('######### RendererChange Off is called #########');
 ```
@@ -3228,17 +2966,6 @@ on(type: "audioCapturerChange", callback: Callback&lt;AudioCapturerChangeInfoArr
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
 audioStreamManager.on('audioCapturerChange', (AudioCapturerChangeInfoArray) =>  {
   for (let i = 0; i < AudioCapturerChangeInfoArray.length; i++) {
     console.info(`## CapChange on is called for element ${i} ##`);
@@ -3279,17 +3006,6 @@ off(type: "audioCapturerChange");
 **示例：**
 
 ```js
-var audioManager = audio.getAudioManager();
-let audioStreamManager;
-audioManager.getStreamManager((err, data) => {
-  if (err) {
-    console.error(`getStreamManager : Error: ${err}`);
-  } else {
-    console.info('getStreamManager : Success : SUCCESS');
-    audioStreamManager = data;
-  }
-});
-
 audioStreamManager.off('audioCapturerChange');
 console.info('######### CapturerChange Off is called #########');
 
@@ -3416,7 +3132,6 @@ off(type: 'deviceChange', callback?: Callback<DeviceChangeAction\>): void
 | 参数名   | 类型                                                | 必填 | 说明                                       |
 | -------- | --------------------------------------------------- | ---- | ------------------------------------------ |
 | type     | string                                              | 是   | 订阅的事件的类型。支持事件：'deviceChange' |
-| deviceFlag | [DeviceFlag](#deviceflag)                                    | 是   | 设备类型的flag。     |
 | callback | Callback<[DeviceChangeAction](#devicechangeaction)> | 否   | 获取设备更新详情。                         |
 
 **示例：**
@@ -3426,9 +3141,8 @@ var audioManager = audio.getAudioManager();
 audioManager.getRoutingManager((err,AudioRoutingManager)=>{
   if (err) {
     console.error(`AudioFrameworkTest:Callback:failed to get RoutingManager ${err}`);
-  }
-  else {
-    AudioRoutingManager.off('deviceChange', audio.DeviceFlag.OUTPUT_DEVICES_FLAG, (deviceChanged) => {
+  } else {
+    AudioRoutingManager.off('deviceChange', (deviceChanged) => {
       console.info('Should be no callback.');
     });
   }
@@ -5041,6 +4755,11 @@ var audioCapturerInfo = {
   capturerFlags: 0
 }
 
+var audioCapturerOptions = {
+  streamInfo: audioStreamInfo,
+  capturerInfo: audioCapturerInfo
+}
+
 var audioCapturer;
 audio.createAudioCapturer(audioCapturerOptions).then((data) => {
   audioCapturer = data;