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kcat

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IDrinkLava

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About this mod

Enables 3D positional audio in Fallout: New Vegas or any other game that supports DirectSound3D. 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 7.0 speakers, 3rd order Ambisonics, or up to EAX 4.0 in other compatible games.

Permissions and credits
Changelogs
10/06/18: THANK YOU FOR 5000 UNIQUE DOWNLOADS! Please continue to stay updated on this mod's progress and keep spreading the word about this mod and the DSOAL wrapper.

Overview

It's a little-known fact that Fallout: New Vegas 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, 7.0 surround, or up to 3rd order Ambisonics without the need for a dedicated soundcard.

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



Complete list of compatible DirectSound3D games here!


Installation

YOU MUST INSTALL THIS MOD MANUALLY, NOT WITH A MOD MANAGER! Before installing the latest 1.31a 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 New Vegas installation directory.
  2. This package defaults to 44100Hz by default, so change the relevant values in alsoft.ini from 44100 to 48000 if you want to use this mod with 48000Hz sample rate.
  3. Go into your speaker's properties and untick "Allow applications to take exclusive control of this device", then tick "Disable all sound
  4. effects" or some variation of that line.
  5. 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.

PERSONALIZED HRTF 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 in both 44100Hz and 48000Hz.

    1. Watch this video here to determine the correct HRTF tables for you:
Personalized HRTF Binaural Audio demo (OpenAL Soft 3D spatial sound) KEMAR, CIAIR & IRCAM tables
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 in 48000Hz, then you would set "default-hrtf=irc_1037_44800". Don't add .mhr to the end of the line.

HIGHER ORDER AMBISONICS INSTALLATION (FOR SURROUND USERS!)
If you play on a surround setup, you can actually gain enhanced 3D positional audio through OpenAL Soft's Higher
Order Ambisonics. It's far superior to the discrete panning of standard surround sound and can be done on as few as 4 speakers.
  1. Unzip the contents of "HARD_MODE_INSTALLATION.zip" to %APPDATA%.
  2. Open alsoft.ini and add the following lines to the bottom.
  3. [decoder]
  4. quad=C:/Users/YourNameHere/AppData/Roaming/OpenAL/presets/square.ambdec
    surround51=C:/Users/YourNameHere/AppData/Roaming/OpenAL/presets/itu5.1.ambdec
    surround71=C:/Users/YourNameHere/AppData/Roaming/OpenAL/presets/
    hexagon.ambdec
    hq-mode=true
  5. Replace all instances of "YourNameHere" with your PC's account name.
kcat himself recommends itu5.1-nocenter.ambdec for better left-right positioning on 5.1. There's also 3D7.1.ambdec which can do elevation on 7.1 speakers but requires a specific speaker layout.


Uninstalling
  • Remove "dsound.dll", "dsoal-aldrv.dll", and "alsoft.ini" from the \Fallout New Vegas 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


My sound is cutting out in Tales of Two Wastelands!
Go into alsoft.ini and change sources=256 to sources=1024.
(Verified by "DeathWrench" and "redmaxblower" of NexusMods.)


I don't hear any voice modulation effects with power armor or intercoms!

This is a known bug, unfortunately. DSOAL does not currently support the DirectX 8 effects that Fallout: New Vegas uses for these, it only supports EAX 1.0 through 4.0.

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.

Are there any more config tweaks for alsoft.ini?

Yes, there is a full list here.

The EAX reverb is too loud in ___! How do I fix this?
Unfortunately, DSOAL has a bug where it doubles or sometimes quadruples reverb sends when HRTF is active at the same time. The only fix is to adjust the boost= parameter until it sounds right. boost=-6 corresponds to half volume and boost=-12 is quarter volume.

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
v1.31a
  • Minor update with small bugfixes, OpenAL Soft 1.19.1 stable build, 48000Hz HRTF presets, and new instructions for activating 3rd Order Ambisonics on Surround setups.

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: New Vegas)
        -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
http://fallout.wikia.com/wiki/File:Fallout_NV_logo.png
(Credit to Porter21. 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://gaming.si/wp-content/uploads/2017/11/422974.jpg
(Use of this promotional art falls under fair use laws.)

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