Audio Device ShareSet Name, as defined in the Wwise Project. If Null, will select the Default Output shareset (always available)
Device specific identifier, when multiple devices of the same type are possible. If only one device is possible, leave to 0. - PS4 Controller-Speakers: UserID as returned from sceUserServiceGetLoginUserIdList
XBoxOne Controller-Headphones: Use the AK::GetDeviceID function to get the ID from an IMMDevice. Find the player's device with the WASAPI API (IMMDeviceEnumerator, see Microsoft documentation) or use AK::GetDeviceIDFromName.