how to create ADK voice agent using server-sent events
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The Alexa Device SDK creates voice agents that communicate with Alexa Voice Service using HTTP/2 streams for bidirectional communication. Server-Sent Events are not used in the standard ADK architecture for voice interaction with Alexa.
Setting up an ADK voice agent requires downloading the Alexa Device SDK, configuring the build environment, installing dependencies, setting up audio components, and configuring device credentials. This creates the foundation for HTTP/2 communication with Alexa Voice Service.
The ADK processes audio by capturing microphone input, converting it to LPCM format, buffering the data, and sending it through HTTP/2 streams to Alexa Voice Service. AVS responds with directives that the device processes and executes, creating a complete voice interaction loop.
AVS sends various directives to control device functionality. These include speech synthesis for responses, audio playback for music, setting alerts and timers, volume control, and device-specific commands. Each directive is processed by corresponding handlers in the ADK implementation.
In conclusion, creating an ADK voice agent involves setting up the Alexa Device SDK environment, implementing audio processing through HTTP/2 streams, and handling various AVS directives. Server-Sent Events are not part of the standard ADK architecture, as the SDK uses HTTP/2 for efficient bidirectional communication with Alexa Voice Service.