The Sonic Interactions in Virtual Environments (SIVE) toolkit. This repository contains the SIVE toolkit as a Unity project, as well as a package which you can include in your own Unity projects.
The manual can be found here (as well as in this repository) SIVE Toolkit Manual.pdf
The accompanying video tutorial can be found here: https://youtu.be/1Eu0Q3fQyLQ.
Have fun!