Sndio is a small, simple audio and MIDI framework, developed by the OpenBSD project. It provides a lightweight audio and MIDI server and a well-documented userspace API to access the server or audio hardware in a uniform way. Sndio is designed to work well for both desktop and professional music applications, and supports features found in more complex sound systems such as per-application volume control, software mixing, and network transparency.

This package contains command-line tools useful in conjunction with a local or remote sndio server.