This tutorial explains how to stream audio from a server to a browser using Node.js, and how to use Symbl.ai's Streaming API to receive accurate speech-to-text transcriptions over WebSockets. It covers the basics of audio streaming, including its applications in various fields and occasions, as well as the need for solutions like Symbl.ai to extract data and knowledge from audio. The tutorial also provides a step-by-step guide on how to create a Node.js server that can stream an audio file to a browser with WebSockets, using Symbl.ai's streaming API to generate real-time speech-to-text transcriptions. The code is provided for both the server-side and client-side, including HTML, CSS, JavaScript, and Node.js files. The tutorial also covers how to play the audio in the browser and process it for optimal transcription results, as well as how to handle errors and disconnections. Overall, this tutorial provides a comprehensive guide on how to stream audio from a server to a browser using WebSockets and Symbl.ai's Streaming API.