The text discusses the concept of spatial audio and its applications in various fields, including video conferencing, augmented reality (AR), and virtual reality (VR). It explains how spatial audio can recreate a real-life listening experience by positioning audio sources in 3D space. The article then provides a step-by-step guide on building a spatial audio experience using Vonage Video APIs and Resonance SDK on web browsers. The guide covers topics such as creating an AudioContext, defining a 3D room and its wall materials, connecting subscribers to the resonance audio scene, and switching between spatial and mono modes. Additionally, it addresses browser compatibility issues and provides a workaround for Chrome's echo cancellation bug.