Amazon Alexa

參考固件

固件：ROC-RK3308-CC Alexa

Amazon授權

使用 Alexa Voice Service，首先你需要注冊一個Amazon賬號，向 Amazon 注冊你的產品，并對你的 alexa client 進行授權。

第一步，按照官方指導，仔細的按照步驟，注冊你的產品，并創建安全配置文件。

第二步，得到你的 Client ID 和 Product ID

獲取 Product ID：

獲取 Client ID：

使用流程

注意：Alexa Voice Service 不支持中文。

● 上電開機，如果沒有配置網絡，先進行配網。

● 將上面獲得的Client ID 和 Product ID填入 /oem/AlexaClientSDKConfig.json的deviceInfo屬性：

"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" },

● 執行下面命令啟動 Alexa

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

● 第一次啟動需要進行認證授權，按提示打開對應網頁，輸入驗證碼進行認證即可

################################## # NOT YET AUTHORIZED # ################################## ################################################################################################ # To authorize, browse to: 'https://amazon.com/us/code' and enter the code: AT4HLU # ################################################################################################ ################################################# # Checking for authorization (1)... # #################################################

● 認證過程中，稍等幾分鐘后，就可以與 Alexa 進行對話，可通過呼叫“alexa”喚醒，不過大部分交互體驗都要通過命令行引導。

+----------------------------------------------------------------------------+ | 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. | +----------------------------------------------------------------------------+

資源

Alexa 源碼目錄：

SDK/external/alexaClientSDK/

Buildroot 的 Alexa package 目錄：

SDK/buildroot/package/rockchip/alexaClientSDK/

Alexa 沒有自啟動入口，需要進入系統后自己手動啟動Alexa，方法如上一節。如果需要自啟動，則可以參考DuerOS。

編譯方法

● 編譯之前，亦可將上面獲得的Client ID 和 Product ID填入SDK/device/rockchip/rk3308/alexa/AlexaClientSDKConfig.json的deviceInfo屬性，這樣固件就默認的帶有了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" },

● 甚至可以從已經認證過的設備中，拷貝/oem/application-necessities/cblAuthDelegate.db到SDK中device/rockchip/rk3308/alexa/application-necessities/cblAuthDelegate.db，這樣Alexa就會跳過認證，直接開始對話。

● 編輯 device/rockchip/rk3308/BoardConfig.mk 文件，將 OEM_PATH=oem 修改為 OEM_PATH=alexa，保存退出

● 配置 firefly_rk3308_release

source buildroot/build/envsetup.sh

選擇[1]，按回車，配置成功后如下

● Buildroot配置：BR2_PACKAGE_ALEXACLIENTSDK

make menuconfig

進入圖形選擇界面，輸入 /，跳出搜索界面如下，輸入BR2_PACKAGE_ALEXACLIENTSDK，按回車進行搜索

選擇[1]，然后按空格選擇上 alexa client sdk

前面有 [ * ] 號，表示已經選上，然后< Save >保存，并< Exit >退出圖形界面，輸入配置保存命令：

make savedefconfig

保存配置，不保存的話，會在一鍵編譯腳本中被重置

● 在編譯前，如果當前倉庫不是第一次編譯，需要執行：

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

● 最后全部編譯

./build.sh