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Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

Revision:
44:c1d8923072ba
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dumi_doc-master/doc/directives/Speaker.md	Tue Jul 18 16:27:22 2017 +0800
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+# Speaker
+
+## Table of Contents
+
+
+   * [Speaker](#speaker)
+      * [Table of Contents](#table-of-contents)
+      * [SetVolume指令](#setvolume指令)
+      * [AdjustVolume指令](#adjustvolume指令)
+      * [SetMute 指令](#setmute-指令)
+      * [MuteChanged 事件](#mutechanged-事件)
+      * [VolumeChanged事件](#volumechanged事件)
+      * [Speaker状态上报](#speaker状态上报)
+
+
+## SetVolume指令
+音量绝对控制指令, volumn取值为[0,100]
+```json
+{
+    "header": {
+        "namespace": "Speaker",
+        "name": "SetVolume",
+        "message_id": "message_id-1344"
+    },
+    "payload": {
+        "volume": 10
+    }
+}
+```
+
+## AdjustVolume指令
+音量相对控制指令,volume的取值范围为[-100,100],正数表示增大音量,负数表示减小音量。
+```json
+{
+    "header": {
+        "namespace": "Speaker",
+        "name": "AdjustVolume",
+        "message_id": "message_id-1344"
+    },
+    "payload": {
+        "volume": -10
+    }
+}
+```
+
+## SetMute 指令
+设置静音状态打开/关闭。mute取值:true静音;false取消静音。
+```json
+{
+    "header": {
+        "namespace": "Speaker",
+        "name": "SetMute",
+        "message_id": "message_id-1344"
+    },
+    "payload": {
+        "mute": true
+    }
+}
+```
+
+
+## MuteChanged 事件
+静音状态改变的事件上报
+```json
+"device_event": {
+    "header": {
+        "namespace": "Speaker",
+        "name": "MuteChanged",
+        "message_id": "message_id-1344"
+    },
+    "payload": {
+        "muted": true,
+        "volume": 10
+    }
+}
+```
+
+
+## VolumeChanged事件
+```json
+"device_event": {
+    "header": {
+        "namespace": "Speaker",
+        "name": "VolumeChanged",
+        "message_id": "message_id-1344"
+    },
+    "payload": {
+        "volume": 10
+    }
+}
+```
+
+
+## Speaker状态上报
+正常请求中也需要上报Speaker当前的状态
+```json
+"device_status":{
+    "Speaker":{
+        "volume": 50,
+        "muted": false
+    }
+}
+```
+
+