BrainBloomAI's Speech Service

Handles speech synthesis and recognition within BrainBloomAI with multilanguage support

• Recognition: Uses websockets to streams raw audio data in opus codecs in mpeg containers for live transcription
• Synthesis: Uses simple HTTP requests to obtain streamable audio data in aac codecs

Startup

To startup a development server,

npm i
npm start

Alternatively, you may use pnpm as a drop-in replacement for npm

Lightweight server with no build processes

/src/config.js

Configuration for frontend

• .PORT: (number) port number the Speech Service server will run on
• .invokeOrigin: (string) URL address of BrainBloomAI's frontend (e.g. "http://localhost:8000", no leading forward slash), used to establish CORS policy for web sockets establishment

.env

Only one variable is used to maintain sessions

• DEEPGRAM_API_KEY: (string) DeepGram's supplied API key

Dependencies

• express.js: NodeJS web framework
• socket.IO: NodeJS web socket library
• Deepgram JS SDK: JS SDK to interact with Deepgram's API

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