xVASynth v3 - F4VA Synth
⚪ Last updated 2023⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 0.2% endorsement rate
- 🏆 #27 of 49 Utilities mods in this game by downloads
📋 About This Mod
Download the main app from the Skyrim page. Main app now also on Steam!
You can now train your own voices: xVATrainer
List of voices available for xVASynth, from both myself and the community: Google doc link
You can submit models at the following link, if you train them with xVATrainer: Google forms link
Quick intro
xVASynth is an AI based app for creating new voice lines using neural speech synthesis. The app loads models individually trained on character voice data from games. The app gives users control over details such as pitch and durations of individual letters to provide control over emotion and emphasis. To see it in action, watch these short intro/tutorial videos, narrated by various supported voices:
5u4xpI-cAd8 W-9SFoNuTtM
Supported games
-
[]Skyrim (SKVASynth)
[
]Fallout 4 (F4VASynth) <-- you are here[]Oblivion (OBVASynth)
[]Fallout New Vegas (NVVASynth)
[]Morrowind (MWVASynth)
[]Fallout 3 (F3VASynth)
[]Starfield (SFVASynth) soon™
[]Fallout 76 (F76VASynth)
[]Cyberpunk 2077 (CPVASynth)
[]Civilization (CIVVASynth)
[]Mass Effect (MEVASynth)
[]The Witcher (WVASynth)
[]Humankind (HKVASynth)
[]Dragon Age (DAVASynth)
[]Overwatch (OWVASynth)
[]and other games/series currently without a Nexus page (Final Fantasy, Borderlands, Bioshock, GTA 4, GTA 5, GTA:SA, Resident Evil, Red Dead Redemption 2, Command and Conquer, and others)
Discord: https://discord.gg/nv7c6E2TzV
Patreon: https://www.patreon.com/xvasynth
Twitter: @dan_ruta
Preface: The tool does not re-distribute any game assets, nor does it interact with them in any way. Game assets are used only during voice training as a reference, to guide the algorithm to drive itself to a point where it can create voices that sound similar enough to the examples. Think about it as an automated digital impersonator. Regardless, avoid using the tool in an offensive/explicit manner. Make it obvious where you can, in descriptions that the voice samples are generated, and are not from real human voice actors. Any issues you cause with this are on you.
Introduction
xVASynth is an AI app that generates voice acting lines using specific voices from video games. It can do text-to-speech (TTS) from text input, or voice conversion (VC) from audio input (file/microphone). Starting with v3, the app gives users artistic control ove
xVASynth v3 - F4VA Synth is an AI-powered utility that generates high-quality voice acting lines using voices from video games. It supports hundreds of voices across dozens of games, with per-letter pitch, duration, and energy control. Ideal for modders and content creators seeking custom voice lines.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge community trust with 1,003 endorsements and 442k downloads
- Per-letter control gives you fine-tuned performance tweaks
- Works across dozens of games, not just Fallout 4
⚠️ Cons
- Last updated in August 2023 — may not support the latest game versions or voices
- Requires a separate app install and setup, not a simple drop-in mod
- AI-generated voices can sound robotic without careful tuning
For modders and content creators who need custom voice lines without hiring voice actors. Perfect for quest mods, follower mods, or fan projects. Skip if you're looking for gameplay changes — this is a tool, not a content mod.
💡 Beginner Tips
- Check the xVASynth website for the latest voice packs and updates, as the mod page may be outdated.
- Start with a short line to test pitch and energy settings before generating long dialogues.
- Use the per-letter controls to emphasize specific words or syllables for more natural delivery.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- Dan Ruta
- Version
- 3.0
- Downloads
- 442,674
- Endorsements
- 1,003
- Category
- Utilities
- Created
- 1/10/2021
- Updated
- 8/31/2023
🔧 How to Install Fallout 4 Mods
Download from Nexus.
📖 Full step-by-step install guide for Fallout 4 →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Fallout 4 commands, item IDs, and more.
Keep browsing — more Fallout 4 mods await