SoLoud is a portable, easy-to-use audio engine primarily designed for games and multimedia applications. It supports multiple audio formats and provides features such as 3D positional audio, stereo and mono sound playback, cross-platform compatibility, and a variety of audio filters. The engine is written in C++ and offers bindings for other programming languages, making it versatile for developers. Detailed documentation and resources are available on their website to facilitate integration and usage.