Sounds have been imported, Wwise Objects have been created, and the connections to the Wwise project have been integrated into the Unity game. At this point, you might be considering adding Effects to shape the acoustic environment, and so you've added various aux busses in your Wwise Project. But, how do you manage which sound should have what acoustic effect? In the Wwise Unity Integration, you will find an AkEnvironment script that allows you to keep track of every registered game object and what aux bus they should be assigned to, by the use of Triggers. In this lesson, you will learn how to detect which sounds are in a region and let Wwise know which sounds should be sending to what aux bus.