Voice Pack Management

An Anime Game Launcher allows you to install and manage multiple voice language packs for the game. This guide covers adding, removing, and updating voice packs.

Available Voice Packs

The launcher supports four voice language packs:

Language	Locale Code	Approximate Size
English	`en-us`	2-4 GB
Japanese	`ja-jp`	2-4 GB
Korean	`ko-kr`	2-4 GB
Chinese	`zh-cn`	2-4 GB

Voice pack sizes vary by game version. The launcher fetches current sizes from the API automatically.

Managing Voice Packs

Accessing Voice Pack Settings

Open Settings

Click the gear icon in the top-right corner of the launcher.

Navigate to General

In the settings window, select General from the sidebar.

Find Game Voiceovers

Scroll to the Game Voiceovers section.This expandable row shows:

“Game Voiceovers” as the title
“Select voice-over languages for the game” as subtitle
List of all four available voice packs

Adding Voice Packs

Select Language

In the Game Voiceovers section, find the language you want to add.Each voice pack shows:

Language name (English, Japanese, Korean, Chinese)
Toggle switch (on/off)
Download status if applicable

Enable Voice Pack

Click the toggle switch to ON for the desired language.What happens:

Launcher adds the locale code to config.game.voices
Configuration is saved immediately
Voice pack is queued for download

Download Voice Pack

The launcher detects the new voice pack needs installation.Download process:

Main launcher state updates to show voice pack installation needed
Click the main action button to start download
Voice pack downloads to temp folder
Automatically extracts to game directory
Updates complete - voice pack ready to use

Voice packs are treated as separate components and download independently. The process is defined in src/ui/main/download_diff.rs.

Removing Voice Packs

Disable Voice Pack

In Game Voiceovers settings, toggle OFF the voice pack you want to remove.What happens:

Launcher removes the locale code from config.game.voices
Configuration saves immediately
A confirmation dialog may appear

Delete Files (Optional)

Disabling a voice pack removes it from the configuration but doesn’t delete the files.To free up disk space:

Voice pack files remain in the game directory
Use the game repair function to clean them up
Or manually delete the voice pack folder

File locations:

{game_path}/GenshinImpact_Data/StreamingAssets/Audio/GeneratedSoundBanks/Windows/
├── English(US)/
├── Japanese/
├── Korean/
└── Chinese/

The launcher source at src/ui/preferences/general/mod.rs:602-606 shows that voice pack deletion errors are logged but may not always show user notifications.

Voice Pack Updates

Voice packs receive updates independently from the base game.

Update Detection

The launcher checks:

Current voice pack version files
Remote API for latest versions
Compares all enabled voice packs

Update states:

Up to date - No action needed
Update available - New version ready to download
Not installed - Voice pack enabled but files missing
Outdated - Newer game version available but voice pack hasn’t updated yet

Updating Voice Packs

Update Notification

When a voice pack update is available:

Main launcher button shows “Update” action
Status indicates voice pack needs updating
Version information displays in the UI

If both game and voice pack updates are available, the launcher handles them together in a single download operation.

Download Update

Click the main action button to start.Update process:

Downloads voice pack diff files
Stores in temp folder: {temp}/updating-{voice_locale}/
Unpacks archive
Applies patches
Updates voice pack directory
Verifies installation

The same update mechanism is used as the base game.

Update Complete

When finished:

Voice pack is current version
Ready to use in-game
Launcher state returns to “Launch”

Predownloading Voice Pack Updates

Voice packs are included in predownload functionality. When you predownload:

All enabled voice pack updates download
Each creates a .predownloadcomplete marker
Predownload button shows total size (game + all voices)

Predownload size calculation:

let mut size = game.downloaded_size().unwrap_or(0);

for voice in voices {
    size += voice.downloaded_size().unwrap_or(0);
}

The predownload button tooltip shows the combined size of the game and all voice pack updates at src/ui/main/mod.rs:299-312.

Voice Pack Versions

Voice pack versions are tracked separately but tied to game versions.

Version Storage

Hardcoded sizes: The launcher includes hardcoded voice pack sizes for specific game versions as a fallback:

Version 5.7.0 (added in 3.14.3)
Version 5.6.0 (added in 3.14.1)
Version 5.5.0 (added in 3.13.1)
Version 5.1.0 (added in 3.13.0)
Version 4.8.0, 5.0.0 (added in 3.12.0)
Version 4.7.0 (added in 3.10.0)

API sizes: For the current live version, the launcher fetches voice pack sizes from the API dynamically (added in 3.14.3).

Version Prediction

The launcher uses version prediction for voice packs: Prediction logic:

Estimates voice pack sizes for new versions
Uses historical data and patterns
Falls back to API when available
Error margin increased in version 3.9.3

Voiceover version prediction helps the launcher calculate required disk space before downloads begin.

Configuration

Voice Pack Settings

Voice packs are configured in config.json:

{
  "game": {
    "voices": [
      "en-us",
      "ja-jp"
    ]
  }
}

Locale codes:

English: "en-us"
Japanese: "ja-jp"
Korean: "ko-kr"
Chinese: "zh-cn"

First-Run Selection

During first-run setup, you select initial voice packs. Default selection:

English (en-us) is pre-selected
Other languages are opt-in

Selection code: From src/ui/first_run/select_voiceovers.rs:156-170:

if self.english.state() {
    config.game.voices.push(String::from("en-us"));
}

if self.japanese.state() {
    config.game.voices.push(String::from("ja-jp"));
}

if self.korean.state() {
    config.game.voices.push(String::from("ko-kr"));
}

if self.chinese.state() {
    config.game.voices.push(String::from("zh-cn"));
}

Troubleshooting Voice Packs

Voice pack not downloading

Check these items:

Verify voice pack is enabled in settings
Check config.json contains the locale code
Ensure sufficient disk space (4+ GB per voice pack)
Look for errors in the console output

Force re-detection:

Restart the launcher
Check for updates
Try toggling the voice pack off and on again

Voice pack update deleted during game update

Fixed in version 3.15.2Previous issue: Updating the game after a preload would delete preloaded voice pack data.Solution: Update your launcher to 3.15.2 or later. The fix ensures voice pack preloaded data is preserved.

Voice pack shows as outdated

This happens when:

Game updated but voice pack API hasn’t updated yet
Publisher releases game before all voice packs
Version file is corrupted

What to do:

Wait 24-48 hours for publisher to release voice pack update
Check official game announcements
You can still play - game uses default voice as fallback
Voice pack will update when available

The launcher state LauncherState::VoiceOutdated indicates this situation and is normal during staggered releases.

Multiple voice packs vs. disk space

Each voice pack requires:

~2-4 GB download
~2-4 GB installed
Temp space during updates (~4-8 GB per pack)

Managing space:

Only enable voice packs you actually use
Disable unused languages in settings
Consider keeping only 1-2 active voice packs
Use game repair to clean up disabled packs

Calculation:

Total required = (Number of packs × 4 GB) + temp space
Example: 2 packs = 8 GB installed + 16 GB temp = 24 GB

Voice pack files not deleted after disabling

Expected behavior: Disabling a voice pack in settings does NOT automatically delete the files.Manual deletion:

Navigate to game directory
Go to GenshinImpact_Data/StreamingAssets/Audio/GeneratedSoundBanks/Windows/
Delete the folder for the language:
- English(US)/ for English
- Japanese/ for Japanese
- Korean/ for Korean
- Chinese/ for Chinese

Safe deletion: Use the game repair function to safely clean up all unused files.

Only delete voice pack folders for languages you’ve disabled in settings. Deleting active voice packs will trigger re-download.

Wrong voice language in game

Voice pack vs. game language:

Voice packs control audio language
In-game text language is separate
Set in-game language in the game settings menu

To change in-game voice:

Launch the game
Open Settings menu
Go to Audio settings
Select voice language
Language must have corresponding voice pack installed

If language not available in game:

Make sure voice pack is enabled in launcher
Download/update the voice pack
Restart the game

Voice Pack Repair

The game repair function includes voice pack verification. When to repair:

Voice pack not working in game
Corrupted audio files
Missing voice lines
After manual file deletion

Repair process:

Open game menu

Click the three-dot menu in the launcher.

Select Repair Game

Choose the “Repair game installation” option.

Wait for verification

The launcher:

Scans all game files
Checks voice pack integrity
Downloads missing/corrupted files
Verifies checksums

From src/ui/main/repair_game.rs:56-57:

if let Ok(voiceovers) = game.get_voice_packages() {
    for package in voiceovers {
        // Verify each voice pack
    }
}

Repair complete

All voice packs are verified and repaired.

Advanced Configuration

Component Index

Voice pack metadata is stored in the components index. Default location: {launcher_folder}/components/ Custom index: You can specify a custom components index in Settings > General > Components Index.

For users in China, you may need to mirror the components repository to work around GitHub blocks (see README.md:70-74).

Temporary Folder

Voice packs download to subdirectories in the temp folder. Structure:

{temp_folder}/
├── updating-voice-en-us/
│   ├── voice_pack.zip
│   └── .predownloadcomplete
├── updating-voice-ja-jp/
└── updating-voice-ko-kr/

Configuration: Settings > General > Temp Folder

Updating Games

Learn about game updates and downloads

First Run Setup

Initial voice pack selection

Get Started

Core Features

Guides

Configuration

Available Voice Packs

Managing Voice Packs

Accessing Voice Pack Settings

Adding Voice Packs

Removing Voice Packs

Voice Pack Updates

Update Detection

Updating Voice Packs

Predownloading Voice Pack Updates

Voice Pack Versions

Version Storage

Version Prediction

Configuration

Voice Pack Settings

First-Run Selection

Troubleshooting Voice Packs

Voice Pack Repair

Advanced Configuration

Component Index

Temporary Folder

Updating Games

First Run Setup

Build docs developers (and LLMs) love

Get Started

Core Features

Guides

Configuration

​Available Voice Packs

​Managing Voice Packs

​Accessing Voice Pack Settings

​Adding Voice Packs

​Removing Voice Packs

​Voice Pack Updates

​Update Detection

​Updating Voice Packs

​Predownloading Voice Pack Updates

​Voice Pack Versions

​Version Storage

​Version Prediction

​Configuration

​Voice Pack Settings

​First-Run Selection

​Troubleshooting Voice Packs

​Voice Pack Repair

​Advanced Configuration

​Component Index

​Temporary Folder

​Related Topics

Updating Games

First Run Setup

Build docs developers (and LLMs) love

Available Voice Packs

Managing Voice Packs

Accessing Voice Pack Settings

Adding Voice Packs

Removing Voice Packs

Voice Pack Updates

Update Detection

Updating Voice Packs

Predownloading Voice Pack Updates

Voice Pack Versions

Version Storage

Version Prediction

Configuration

Voice Pack Settings

First-Run Selection

Troubleshooting Voice Packs

Voice Pack Repair

Advanced Configuration

Component Index

Temporary Folder

Related Topics