Version 2.0.7.0 is often the version found bundled with popular games like and Battlefield 2 . While the core OpenAL 1.1 specification remains a "legacy" open standard, this specific 2.0.x branch represents the proprietary redistributable used to provide hardware-accelerated and environmental audio effects (EAX) on Windows.
The last official open specification.
: Delivers accurate directional cues for immersive environments in games and VR. openal -open audio library- 2.0.7.0