Fallout 4 No Sound? Fixes That Work

If Fallout 4 has no sound at all, or audio cuts out intermittently, the cause is almost always a Windows audio device conflict, a corrupted ini file, or a mod conflict—not a broken game install. Below are the fixes that actually resolve the issue, ordered from quickest to most involved.

Why Fallout 4 Audio Fails

Fallout 4 uses the XAudio2 API on Windows, which is sensitive to changes in your default playback device. If you plug in headphones, switch speakers, or update a driver while the game is running, the audio engine can lose its device handle and go silent. On consoles, the issue is more often a corrupted cache or a TV/AV receiver handshake problem. The game also has a known bug where the ini file records the wrong audio device GUID, causing sound to route to a device that no longer exists.

Quick Fixes to Try First

1. Restart the game and your device. Fully close Fallout 4, then power-cycle your PC or console. This clears any temporary audio glitch.
2. Check the in-game audio settings. Open Settings → Audio and confirm the master volume isn’t at 0. Also set “Audio Output� to “Stereo� instead of “Surround� if you’re not using a surround system.
3. Verify your default playback device. On Windows, right-click the speaker icon → Open Sound settings → choose the correct output device. Then launch the game again.
4. Run the game in windowed mode. Some users report sound returns after switching from fullscreen to borderless windowed. You can toggle this in Settings → Display.

Fix the ini File (PC)

Fallout 4 stores audio configuration in Fallout4.ini and Fallout4Prefs.ini inside Documents\My Games\Fallout4. A common fix is to delete these files (or rename them to .bak) and let the game regenerate them on next launch. This resets all audio settings to default, which often resolves the “no soundâ€� bug.

If you want to keep your other settings, open Fallout4.ini and look for the [Audio] section. Add or change these lines:

• bEnableAudio=1
• bEnableReverb=0 (disables reverb processing, which can cause crackling or dropouts on some systems)

Save the file and restart the game.

Update or Roll Back Audio Drivers

Outdated or corrupt audio drivers are a leading cause. Visit your motherboard or sound card manufacturer’s website to download the latest driver. If the problem started after a recent update, roll back to the previous driver via Device Manager:

1. Press Win + X → Device Manager.
2. Expand “Sound, video and game controllers.�
3. Right-click your audio device → Properties → Driver tab.
4. Select “Roll Back Driver� if available.

Also disable “Audio Enhancements� for your device—right-click the speaker icon → Sounds → Playback tab → select your device → Properties → Enhancements → check “Disable all enhancements.�

Disable Conflicting Mods

If you use mods, especially those that alter audio (e.g., custom weapon sounds, ambient music overhauls), disable them one by one to find the culprit. The Fallout 4 Script Extender (F4SE) mods can also cause audio issues if outdated. Use your mod manager to disable all mods, test the game, then re-enable them in batches.

Console-Specific Fixes (Xbox, PlayStation)

• Power-cycle the console: Hold the power button for 10 seconds, unplug for 30 seconds, then restart.
• Clear the cache: On Xbox One/Series, go to Settings → Devices & Connections → Blu-ray → Persistent Storage → Clear. On PS4/PS5, turn off the console, unplug for 30 seconds, then rebuild the database via Safe Mode (hold the power button until the second beep).
• Check HDMI/optical cable: A loose cable can cause intermittent audio. Try a different HDMI port on your TV or receiver.
• Set audio format to stereo: On PS4/PS5, go to Settings → Sound → Audio Output → set to “Linear PCMâ€� and “Stereo.â€� On Xbox, Settings → General → Volume & Audio Output → set “HDMI audioâ€� to “Stereo uncompressed.â€�

Advanced PC Troubleshooting

If none of the above works, try these:

• Run the game in compatibility mode: Right-click Fallout4.exe → Properties → Compatibility → run as Windows 7.
• Disable fullscreen optimizations: Same Properties window → “Disable fullscreen optimizations.â€�
• Change the audio output format: In Windows Sound settings, set the default format to 16-bit, 44100 Hz (CD Quality). This avoids sampling rate mismatches that cause silence.
• Reinstall DirectX: Fallout 4 uses DirectX 11. Download the DirectX End-User Runtime from Microsoft and run the installer.

Frequently Asked Questions

Why does Fallout 4 have no sound after I plug in headphones?

Windows may switch the default audio device when you plug in headphones. The game’s audio engine doesn’t always detect the change. Set your headphones as the default device before launching the game, or use the “Headphones� option in the game’s audio settings.

Can a mod cause Fallout 4 to go completely silent?

Yes. Mods that replace sound files or alter audio settings can conflict with the game’s audio engine. Disable all mods and test. If sound returns, re-enable mods one by one to find the offender.

Why does the sound cut out during gameplay but the game doesn’t crash?

This is often a memory leak in the audio engine or a conflict with the sound card’s sample rate. Try setting the default format to 16-bit, 44100 Hz, and disable reverb in the ini file.

Does the “no sound� bug happen on both PC and console?

It’s much more common on PC due to driver and device issues. Console users typically experience it after a system update or when the console’s audio cache gets corrupted. The power-cycle and cache-clearing fixes above usually resolve it.

Will verifying game files fix the sound?

On Steam, right-click Fallout 4 → Properties → Local Files → Verify Integrity of Game Files. This replaces any corrupted game files, which can include audio data. It’s a safe step to try before more drastic measures.

Why is there no sound in cutscenes but dialog works?

This is usually a surround sound issue. The game’s cutscene audio is mixed for stereo, and if your system is set to 5.1 or 7.1, the center channel may be missing. Switch to stereo in the game’s audio settings or in Windows.

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