diff --git a/en/application-dev/reference/apis/js-apis-media.md b/en/application-dev/reference/apis/js-apis-media.md
index 90041e190287f35f80ed0913690a8cdc3b11ae45..248e344bf277209c341e2d88d91bd98a13add52b 100644
--- a/en/application-dev/reference/apis/js-apis-media.md
+++ b/en/application-dev/reference/apis/js-apis-media.md
@@ -1,6 +1,7 @@
# Media
> **NOTE**
+>
> The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
The multimedia subsystem provides a set of simple and easy-to-use APIs for you to access the system and use media resources.
@@ -117,7 +118,7 @@ Creates an **AudioRecorder** instance to control audio recording.
**Example**
```js
-let audiorecorder = media.createAudioRecorder();
+let audioRecorder = media.createAudioRecorder();
```
## media.createVideoRecorder9+
@@ -1679,34 +1680,34 @@ let audioRecorderConfig = {
uri : 'fd://xx', // The file must be created by the caller and granted with proper permissions.
location : { latitude : 30, longitude : 130},
}
-audioRecorder.on('error', (error) => { // Set the 'error' event callback.
+audioRecorder.on('error', (error) => { // Set the error event callback.
console.info(`audio error called, errName is ${error.name}`);
console.info(`audio error called, errCode is ${error.code}`);
console.info(`audio error called, errMessage is ${error.message}`);
});
-audioRecorder.on('prepare', () => { // Set the 'prepare' event callback.
+audioRecorder.on('prepare', () => { // Set the prepare event callback.
console.log('prepare success');
- audioRecorder.start(); // Start recording and trigger the 'start' event callback.
+ audioRecorder.start(); // Start recording and trigger the start event callback.
});
-audioRecorder.on('start', () => { // Set the 'start' event callback.
+audioRecorder.on('start', () => { // Set the start event callback.
console.log('audio recorder start success');
});
-audioRecorder.on('pause', () => { // Set the 'pause' event callback.
+audioRecorder.on('pause', () => { // Set the pause event callback.
console.log('audio recorder pause success');
});
-audioRecorder.on('resume', () => { // Set the 'resume' event callback.
+audioRecorder.on('resume', () => { // Set the resume event callback.
console.log('audio recorder resume success');
});
-audioRecorder.on('stop', () => { // Set the 'stop' event callback.
+audioRecorder.on('stop', () => { // Set the stop event callback.
console.log('audio recorder stop success');
});
-audioRecorder.on('release', () => { // Set the 'release' event callback.
+audioRecorder.on('release', () => { // Set the release event callback.
console.log('audio recorder release success');
});
-audioRecorder.on('reset', () => { // Set the 'reset' event callback.
+audioRecorder.on('reset', () => { // Set the reset event callback.
console.log('audio recorder reset success');
});
-audioRecorder.prepare(audioRecorderConfig) // Set recording parameters and trigger the 'prepare' event callback.
+audioRecorder.prepare(audioRecorderConfig) // Set recording parameters and trigger the prepare event callback.
```
### on('error')
@@ -1727,12 +1728,12 @@ Subscribes to the audio recording error event.
**Example**
```js
-audioRecorder.on('error', (error) => { // Set the 'error' event callback.
+audioRecorder.on('error', (error) => { // Set the error event callback.
console.info(`audio error called, errName is ${error.name}`); // Print the error name.
console.info(`audio error called, errCode is ${error.code}`); // Print the error code.
console.info(`audio error called, errMessage is ${error.message}`); // Print the detailed description of the error type.
});
-audioRecorder.prepare(); // Do no set any parameter in prepare and trigger the 'error' event callback.
+audioRecorder.prepare(); // Do no set any parameter in prepare and trigger the error event callback.
```
## AudioRecorderConfig
@@ -1749,7 +1750,7 @@ Describes audio recording configurations.
| numberOfChannels | number | No | Number of audio channels. The default value is **2**. |
| format | [AudioOutputFormat](#audiooutputformat) | No | Audio output format. The default value is **MPEG_4**. |
| location | [Location](#location) | No | Geographical location of the recorded audio. |
-| uri | string | Yes | Audio output URI. Supported: fd://xx (fd number)
The file must be created by the caller and granted with proper permissions.|
+| uri | string | Yes | Audio output URI. Supported: fd://xx (fd number)
The file must be created by the caller and granted with proper permissions.|
| audioEncoderMime | [CodecMimeType](#codecmimetype8) | No | Audio encoding format. |
@@ -2347,7 +2348,7 @@ Subscribes to the video recording error event.
**Example**
```js
-videoRecorder.on('error', (error) => { // Set the 'error' event callback.
+videoRecorder.on('error', (error) => { // Set the error event callback.
console.info(`audio error called, errName is ${error.name}`); // Print the error name.
console.info(`audio error called, errCode is ${error.code}`); // Print the error code.
console.info(`audio error called, errMessage is ${error.message}`); // Print the detailed description of the error type.
@@ -2383,7 +2384,7 @@ Describes the video recording parameters.
| profile | [VideoRecorderProfile](#videorecorderprofile9) | Yes | Video recording profile. |
| rotation | number | No | Rotation angle of the recorded video. |
| location | [Location](#location) | No | Geographical location of the recorded video. |
-| url | string | Yes | Video output URL. Supported: fd://xx (fd number)
The file must be created by the caller and granted with proper permissions.|
+| url | string | Yes | Video output URL. Supported: fd://xx (fd number)
The file must be created by the caller and granted with proper permissions.|
## AudioSourceType9+
@@ -2434,7 +2435,7 @@ Enumerates the container format types (CFTs).
| Name | Value | Description |
| ----------- | ----- | --------------------- |
-| CFT_MPEG_4 | "mp4" | Video container format MPEG-4 .|
+| CFT_MPEG_4 | "mp4" | Video container format MPEG-4.|
| CFT_MPEG_4A | "m4a" | Audio container format M4A.|
## Location