Amazon Alexa

参考固件

固件：

ROC-RK3308-CC Alexa

Amazon授权

使用 Alexa Voice Service，首先你需要注册一个Amazon账号，向 Amazon 注册
你的产品，并对你的 alexa client 进行授权。

第一步，按照

官方指导

，仔细的按照步骤，注册你的产品，并创建安全配置文件。

第二步，得到你的 Client ID 和 Product ID

获取 Product ID：


获取 Client ID：


配网

当前没有网络，或者网络不可用，我们参考

《网络配置》

中

“配网”

 一节进行配网即可。

使用流程

注意：Alexa Voice Service 不支持中文。

● 上电开机，如果没有配置网络，先进行配网。

● 将上面获得的Client ID 和 Product ID填入
"/oem/AlexaClientSDKConfig.json"的"deviceInfo"属性：

   "deviceInfo":{
       // Unique device serial number. e.g. 123456
       "deviceSerialNumber":"123456",
       // The Client ID of the Product from developer.amazon.com
       "clientId":"YOUR_CLIENT_ID",
       // Product ID from developer.amazon.com
       "productId":"YOUR_PRODUCT_ID"
   },

● 执行下面命令启动 Alexa

   SampleApp /oem/AlexaClientSDKConfig.json /oem/resources/

● 第一次启动需要进行认证授权，按提示打开对应网页，输入验证码进行认证即
可

   ##################################
   #       NOT YET AUTHORIZED       #
   ##################################

   ################################################################################################
   #       To authorize, browse to: 'https://amazon.com/us/code' and enter the code: AT4HLU       #
   ################################################################################################

   #################################################
   #       Checking for authorization (1)...       #
   #################################################

● 认证过程中，稍等几分钟后，就可以与 Alexa 进行对话，可通过呼叫“alexa”
唤醒，不过大部分交互体验都要通过命令行引导。

   +----------------------------------------------------------------------------+
   |                                  Options:                                  |
   | Wake word:                                                                 |
   |       Simply say Alexa and begin your query.                               |
   | Tap to talk:                                                               |
   |       Press 't' and Enter followed by your query (no need for the 'Alexa').|
   | Hold to talk:                                                              |
   |       Press 'h' followed by Enter to simulate holding a button.            |
   |       Then say your query (no need for the 'Alexa').                       |
   |       Press 'h' followed by Enter to simulate releasing a button.          |
   | Stop an interaction:                                                       |
   |       Press 's' and Enter to stop an ongoing interaction.                  |
   | Privacy mode (microphone off):                                             |
   |       Press 'm' and Enter to turn on and off the microphone.               |
   | Echo Spatial Perception (ESP): This is for testing purpose only!           |
   |       Press 'e' followed by Enter at any time to adjust ESP settings.      |
   | Playback Controls:                                                         |
   |       Press '1' for a 'PLAY' button press.                                 |
   |       Press '2' for a 'PAUSE' button press.                                |
   |       Press '3' for a 'NEXT' button press.                                 |
   |       Press '4' for a 'PREVIOUS' button press.                             |
   | Settings:                                                                  |
   |       Press 'c' followed by Enter at any time to see the settings screen.  |
   | Speaker Control:                                                           |
   |       Press 'p' followed by Enter at any time to adjust speaker settings.  |
   | Firmware Version:                                                          |
   |       Press 'f' followed by Enter at any time to report a different        |
   |       firmware version.                                                    |
   | Info:                                                                      |
   |       Press 'i' followed by Enter at any time to see the help screen.      |
   | Reset device:                                                              |
   |       Press 'k' followed by Enter at any time to reset your device. This   |
   |       will erase any data stored in the device and you will have to        |
   |       re-register your device.                                             |
   |       This option will also exit the application.                          |
   | Reauthorize device:                                                        |
   |       Press 'z' followed by Enter at any time to re-authorize your device. |
   |       This will erase any data stored in the device and initiate           |
   |       re-authorization.                                                    |
   | Quit:                                                                      |
   |       Press 'q' followed by Enter at any time to quit the application.     |
   +----------------------------------------------------------------------------+

资源

Alexa 源码目录：

   SDK/external/alexaClientSDK/

Buildroot 的 Alexa package 目录：

   SDK/buildroot/package/rockchip/alexaClientSDK/

Alexa 没有自启动入口，需要进入系统后自己手动启动Alexa，方法如上一节。
如果需要自启动，则可以参考DuerOS。

编译方法

● 编译之前，亦可将上面获得的Client ID 和 Product ID填入
"SDK/device/rockchip/rk3308/alexa/AlexaClientSDKConfig.json"的
"deviceInfo"属性，这样固件就默认的带有了Client ID 和 Product ID信息。

   "deviceInfo":{
       // Unique device serial number. e.g. 123456
       "deviceSerialNumber":"123456",
       // The Client ID of the Product from developer.amazon.com
       "clientId":"YOUR_CLIENT_ID",
       // Product ID from developer.amazon.com
       "productId":"YOUR_PRODUCT_ID"
   },

● 甚至可以从已经认证过的设备中，拷贝"/oem/application-
necessities/cblAuthDelegate.db"到SDK中"device/rockchip/rk3308/alexa
/application-necessities/cblAuthDelegate.db"，这样Alexa就会跳过认证，
直接开始对话。

● 编辑 device/rockchip/rk3308/BoardConfig.mk 文件，将 "OEM_PATH=oem"
修改为 "OEM_PATH=alexa"，保存退出

● 配置 firefly_rk3308_release

   source buildroot/build/envsetup.sh

选择"[1]"，按回车，配置成功后如下


● Buildroot配置：BR2_PACKAGE_ALEXACLIENTSDK

   make menuconfig

进入图形选择界面，输入 "/"，跳出搜索界面如下，输入
"BR2_PACKAGE_ALEXACLIENTSDK"，按回车进行搜索



选择"[1]"，然后按空格选择上 "alexa client sdk"


前面有 "[ * ]" 号，表示已经选上，然后"< Save >保存"，并"< Exit >退出"
图形界面，输入配置保存命令：

   make savedefconfig

保存配置，不保存的话，会在一键编译脚本中被重置

● 在编译前，如果当前仓库不是第一次编译，需要执行：

   make gst1-plugins-good-reconfigure && make gst1-plugins-good-rebuild

● 最后全部编译

   ./build.sh