audio that is triggered based on the position of the headset
For example, in a crowded scene the experiencer would be given the ability to choose which conversation they listen to based on where they are looking.
New Wave by Directors Samir Mallal and Aron Hjartarson demonstrates the positional audio approach.
Recommended Listening
Voices of VR by Kent Bye
#411: Kevin Cornish on The Future of Interactive Storytelling