FO4 stereoscopic space correction (updated)

Fixed directional volume drop issue in Fallout 4 via topology-aware X3DAudio correction. Correct stereo and true 2.1 channels while safely preserving native 5.1/7.1 output. Contains the construction of the next generation and the old generation, integrated in one FOMOD.

Original address:

Prefix:

Fallout 4 Script Extender (F4SE)：

Updated on August 13th:

Version 0.3.0

A new bug has been added to address the bug in Fallout 4 where the camera is rotated too fast or the screen is panned too high or too low. The audio will jump between the left and right speakers, causing clipping noise. (Still continuing to test).

FO4 three-dimensional space correction

FO4 Stereo Space Correction is a lightweight native F4SE plug-in designed to correct directional volume loss and positional audio inconsistencies in Fallout 4.

In the affected configurations, positional sound is noticeably quieter, depending on which direction the player is facing. A fixed sound source may sound weaker when it is directly in front of you than when it is placed to one side.

This plugin corrects X3DAudio's positional output matrix at runtime while preserving the game's original distance, position, and ambient audio behavior.

What does it fix?

Orientation-dependent volume decrease

Sound becomes unusually quiet when facing the source of the sound

Uneven stereo positioning energy

Perceived volume is inconsistent when rotating around a stationary sound source

Error handling of real 2.1 output in previous versions

Output topology support

Version 0.2.1 introduces output topology awareness.

This plugin can capture Windows/X3DAudio's speaker channel masks and apply different behaviors based on the actual audio configuration.

2.0 / Stereo / Headphones

Apply constant power left and right corrections

Maintain positional movement between stereo channels

Corrected initial directional volume loss issue

Real 2.1

Apply corrections to front left and front right only

Keep the low-frequency dropout/woofer channel untouched

5.1

Preserve original native X3DAudio surround matrix

Unable to collapse center, rear, or surround channels into stereo

7.1

Preserve original native X3DAudio surround matrix

Does not change native surround routing

Unknown or custom multi-channel layout

Use secure passthrough

The original X3DAudio matrix is ​​retained instead of guessing speaker layout

Working principle

Fallout 4 uses Microsoft's X3DAudio system to calculate positional audio.

X3DAudio generates a matrix describing how many positional tones each output speaker should receive.

FO4 stereoscopic space fixes hooking related X3DAudio functions at runtime.

Observed when there is X3DAudioInitialize so that the plugin can identify the real speaker topology via SpeakerChannelMask.

X3DAudioCalculate then allows Microsoft's regular position calculations to be performed first.

After calculation:

Stereo outputs receive constant power correction

True 2.1 also accepts the same FL/FR correction while maintaining the low-frequency effect.

Native 5.1 and 7.1 output remains intact

Unknown multi-channel layout falls back to secure passthrough

If speaker topology information is not available, the plug-in only applies the established correction to the two-channel output. Multichannel output remains unchanged.

The goal is to resolve location volume issues without replacing or flattening Fallout 4's sound system.

Mods don’t change anything

FO4 Stereoscopic Space Repair does not replace Fallout 4 audio files.

It does not intentionally remove or overwrite:

distance attenuation

position direction

Doppler calculation

ambient audio

reverberation

Occlusion

sound category

music

interface audio

native surround positioning

One download — two generations of games

Version 0.2.1 includes support for both Fallout 4 generations, integrated into a single FOMOD installer. Install

, only one version is selected.

next generation

Fallout 4 running time 1.11.221

F4SE 0.7.8

older generation

Fallout …