This Addon contains files required for the EAX Support.
It includes the official .efx files which are used on the original Doom 3.
DISCLAIMER: THESE FILES WERE ALREADY AVAILABLE INSIDE THE DOOM 3 VERSION 1.3.1 PATCH INSTALLER.
I ONLY EXTRACTED THESE FILES FROM THE FREELY DISTRIBUTABLE PATCH INSTALLER.
IF ID/BETHESDA/ZENIMAX HAS ISSUE ABOUT DISTRIBUTING THESE FILES INDIPENDANDLY I WILL TAKE THEM DOWN.
It's amazing just how well this works. The Lost Mission lacks EAX but I do love how well this worked.
All I could ask for past this would be a coded exception for voice files so they come in clearly while the rest of the sounds use EAX. It was odd for Id to put in support for EAX in a game they never bothered adding subtitles to.
Sadly if you remove the EAX from the voices they will be barely hearable. That's why some voice channels are using separate EAX present, in order to make them more distinct.
Ooooh I see!
Do I need to use this with creative ALchemy or anything? I have a sound blaster so I assume it just finds it automatically.
Quite late response, but here we are. No, you don't need OpenAL compatible hardware(or other work arounds), DOOM BFA comes with OpenAL-soft, which allows it to use those extension directly on software (no hardware requirements).