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EAX - Environmental Audio Extensions

Ever felt like something was missing in the sound department?
Miss when games still prioritized audio as much as everything else?
Want some extra realism, or, dare I say, IMMERSION ?

Well, you're in luck! I present to you the solution to all things audible:


The video is currently outdated; the mod sounds much better now


Why occupy your time by staring at hallways and corridors? We can give your eyes a break by letting you hear them instead!
EAX uses raytracing to estimate the kind of environment you are in and apply a reverb effect to all sounds you hear as a result.
So, if you find yourself exploring the gm_construct dark room again any time soon, it will naturally become much scarier :)
NOTE: The Half-Life 2 pistol sounds like S#!1 with reverb applied. That is unfortunately a sound design issue, literally no other sound effect sounds the way it does with reverb.

Isn't it weird how you can just as easily hear an explosion as you can a cardboard box tipping over through walls?
EAX uses even more raytracing (don't worry, not enough to set your computer on fire) to determine when sounds are behind objects, and muffles them if they are.
If you're hiding in a building and there are a hundred combines shooting at you from outside, now you'll be able to tell without looking...
It's a very simple effect, but it works wonders in many places.