If set with a parent and <cref name="FollowParent" /> is true, we will update our position to match the parent's world position. You can use <cref name="LocalTransform" /> to set an offset from the parent's position. Setting a parent also allows you to use GameObject.StopAllSounds on the parent to stop all sounds that are following it. This is set automatically when calling <cref name="GameObject.PlaySound" /> on a GameObject, but you can set it manually if you want to change the parent of an existing sound handle.