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kcat

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IDrinkLava

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About this mod

This enables 3D positional audio in Fallout 3. You'll be able to hear if sounds are in front, behind, above, or below you in a full 360 degrees. Optionally, you can use this mod to enable up to 7.1 speaker support in Fallout 3 and up to EAX 4.0 in other compatible games.

Permissions and credits
Changelogs
Overview
It's a little-known fact that Fallout 3 was one of the very last games to support DirectSound3D which was killed off in Vista onwards. SoundBlaster X-Fi soundcard owners can restore this functionality with ALchemy, which creates a dummy "dsound.dll" in the directory that wraps DS3D calls to OpenAL. The included DSOAL dsound.dll in this mod works under the same principle, only it wraps DS3D calls to the OpenAL Soft API instead so you can get HRTF or 7.1 surround without the need for a dedicated soundcard.

Read this article if you're unfamiliar with how HRTF works.



Installation

YOU MUST INSTALL THIS MOD MANUALLY, NOT WITH A MOD MANAGER! Before installing the latest 1.31 version, make sure you delete the older dsound.dll and OpenAL32.dll/dsoal_aldrv.dll files or your game won't launch.

  1. Extract the files to the \Fallout 3 installation directory.
  2. Make sure your speaker config is set to 44100Hz, or else you won't hear the HRTF.
  3. Launch the game; you should immediately notice the spatialized sound.

OpenAL Soft will configure itself to match your speaker settings automatically. Make sure you disable any virtual surround sound programs (Windows Sonic, Dolby Atmos, SBX Pro Studio etc.) in order for this mod to work.

HARD MODE INSTALLATION (NOT FOR BEGINNERS!)
The built-in MIT KEMAR HRTF tables in OpenAL Soft are optimized for an "average head" which means it's likely you won't even hear the HRTF that well. The included "HARD_MODE_INSTALLATION.zip" folder contains 52 extra HRTF tables that are personalized for different heads. You must have your speaker set to output 44100Hz if you want to use these personalized HRTF tables.

    1. Watch this video here to determine the correct HRTF tables for you:
https://www.youtube.com/watch?v=WiAqXW1zsWk
The correct HRTF table for you should feel as though the sound is actually moving along the back of your head in-between your ears.
    2. Unzip the contents of "HARD_MODE_INSTALLATION.zip" to %APPDATA%.
    3. Open alsoft.ini and change the following line "default-hrtf=Built-In 44100hz" to match the HRTF table you'd rather use. For example, if you want to use IRC_1037, then you would set "default-hrtf=irc_1037_44100". Don't add .mhr to the end of the line.


Uninstalling

  • Remove "dsound.dll", "dsoal-aldrv.dll", and "alsoft.ini" from the \Fallout 3 directory.


Frequently Asked Questions
I'm getting muffled sound in-game!
This seems to be caused by Windows 8 and 10's audio stack. Go into your speaker properies and tick "Disable all sound effects" under Enhancements. Then, untick "All applications to take exclusive control" under Advanced. Thanks to toscanini for this.
https://answers.microsoft.com/en-us/windows/forum/windows_10-other_settings-winpc/sound-is-muffled-is-there-a-fix/f8b5cf9c-3347-4036-b1a5-7dff5b1da487

I installed this mod but I don't get any sound in-game!
Make sure your speaker settings match what's set in alsoft.ini. If you want to use 48000Hz sound output, change it to "frequency=48000Hz" and "default-hrtf=Built-In 48000hz" in alsoft.ini.


Will this mod affect any other mods that are already installed?

No, as long as those mods don't use dsound.dll in any way.

I installed the latest update but my game won't launch!
Delete the older OpenAL32.dll file from your installation folder. The newest version of DSOAL uses a different name for OpenAL Soft.

Do I have to delete the alsoft.ini in %APPDATA% from v1.0 for this mod to work?
No. The newest build of DSOAL uses the alsoft.ini in the installation folder instead as a higher priority from %APPDATA%. You can safely keep both files.

When I use the error log .bat, I get a message saying Panning for multi-channel buffers is not supported.
This is a false flag, don't worry about it.


Changelog
v1.31
  • Updated with latest DSOAL build that fixes EAX 2.0 occlusion in compatible games.

v1.3
  • Updated with latest DSOAL and OpenAL Soft builds that includes the following:
        -Support for EAX 3.0 and 4.0 in select games (not Fallout 3)
        -Increased number of compatible games.

v1.2

  • Updated with latest DSOAL build that includes the following fixes:
        -Sounds (like reloading) that should play centered now correctly play centered.
        -Support for error logs (use the included .bat file).
        -Volume rolloff now works correctly in older games that were affected.
        -Full compatibility with EAX 2.0 reverb, occlusion, and obstruction effects.
        -Reverb sends now play EAX 2.0 reverb at the proper volume.
        -Improved compatibility with A3D-to-DS3D wrappers in games from 1998-2000.
        -Partial EAX 1.0 support for games that don't use DS3D unless EAX 1.0 is on.
  • Added 52 extra HRTF tables in a separate .zip folder to make Hard Mode Installation much more streamlined.

v1.1
  • Updated with latest DSOAL build and reconfigured settings to hopefully fix any problems people might be having with distorted sound and audio cutting out.

v1.0
  • Updated with latest DSOAL and OpenAL Soft .DLLs.
  • Removed older DSOAL source and other files to greatly trim down on file size.


Legal
DSOAL and OpenAL Soft are licensed under LGPL. They were created by kcat (Huleed). I have recieved permission to publish this mod here, although since it's LGPL it can be redistributed anywhere as long as the .dlls can be easily replaced. DSOAL can theoretically work with any game that supports DirectSound3D, though it was originally intended for TES 4: Oblivion.
http://kcat.strangesoft.net/openal.html
http://repo.or.cz/dsound-openal.git
https://www.gnu.org/licenses/lgpl-3.0.en.html#content

The .mhr files in this collection were processed from the following, freely-available sources with no restrictions as long as the following authors are cited:

MIT KEMAR tables copyrighted 1994 by MIT Media Laboratory;
Bill Gardner ([email protected]) and Keith Martin ([email protected])
http://sound.media.mit.edu/resources/KEMAR.html

CIAIR tables copyright 1999 by Itakura Laboratory and the Center for Integrated Acoustic Information Research (CIAIR) of Nagoya University;
Fumitada Itakura, Kazuya Takeda, Mikio Ikeda, Shoji Kajita, and Takanori Nishino.
http://www.sp.m.is.nagoya-u.ac.jp/HRTF/database.html

Contact for the IRCAM Listen HRTF Database:
Olivier Warusfel ([email protected])
Room Acoustics Team, IRCAM
1, place Igor Stravinsky
75004 PARIS, France
http://recherche.ircam.fr/equipes/salles/listen/index.html


Credits
https://vignette.wikia.nocookie.net/fallout/images/8/88/Fallout_3_logo.png/revision/latest?cb=20081229131648
(Credit to Mirar. Use of this logo falls under fair use laws.)
https://i.imgur.com/gXIDw4j.jpg
(Original creator unknown. Use of this image falls under fair use laws.)
https://i1.wp.com/it.videogamer.com/wp-content/uploads/2017/11/fallout-3.jpg?fit=1920%2C1080&ssl=1
(Use of this promotional art falls under fair use laws.)

#hrtf
#spatialaudio
#binaural
#3dsound
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