The stand-alone mod S.T.A.L.K.E.R. Anomaly aims to be the most stable and customizable experience for fans of the S.T.A.L.K.E.R. games. It's powered by the Monolith 64-bit engine, a custom fork of the X-Ray engine.
Fixes the horrible sound quality of Anomaly by making sure OpenAL configuration is ok on your computer, by disabling HRTF, and changing Anomaly custom openAL config for a deeper sound and still ok 3D sounds.
Anomaly has an horrible sound quality since HRFT has been introduced. You can notice it especially if you have a good sound setup (I noticed it very easily with my iFi DSD Nano Black Label + HD6XX combo).
Anomaly suffers the same problem as what is seen on this video:
Everything feels muffled and pitched relatively high, the game's sound is missing deepness somehow.
This addon fixes it by making sure you have a proper configuration of OpenAl on your computer (mainly to increase quality and set values to default) and by changing Anomaly OpenAl configs.
I paid a particular attention to keep a good 3D soundstage despite the removal of HRTF by tweaking the crossfeed parameter.
Everything is described the README.txt file, but let's add it here too, it's very easy to setup, only step 4 is required for the add-on to work most likely (other steps are to make sure OpenAL is correctly configured on your computer):
0. Extract the archive somewhere.
1. Double click on openal-soft-1.21.1-bin/alsoft-config/alsoft-config.exe
2. Configure the Playback and HRTF panels according to the picture Config.png (see below).
3. Click "Apply" now close OpenAL Soft Configuration.
4. Copy paste the `bin` folder at the root of this addon (which contains alsoft.ini file) to your Anomaly folder. Replace files if asked to (backup files are provided with the .back extension).
DON'T copy the bin folder from openAL (which contains Win32 and Win64 folders).
Enjoy a much deeper and better sound and spatialisation.
None detected yet but I have a beefy computer (10700KF + RTX 3070 + 32Gb RAM). Reducing the quality sliders might help if you have sound delays or frame rate loss.
Thanks to Kennedith for pointing me out the right direction.