BNK Tools

Tools for extracting and repacking Wwise .bnk audio files.

Tools Overview

BNK-Unpack & BNK-Pack (Double Click)

Simple extraction tool. Just double click to run.

How to use BNK-Unpack:

1. Place .bnk files in the BNK-Input folder
2. Double click BNK-Unpack.exe
3. Find extracted .wem files in the WEM folder

How to use BNK-Pack:

1. Make sure original .bnk files are in BNK-Input folder
2. Modify .wem files in the WEM folder as needed
3. Double click BNK-Pack.exe
4. Find repacked .bnk files in the BNK-Output folder

BNKTool (Command Line)

Full featured command line tool with options for extraction, packing, and pipeline mode.

Usage:

bnktool.exe [flags]

Flags:

• -bi <dir> - BNK input folder (default: BNK-Input)
• -bo <dir> - BNK output folder (default: BNK-Output)
• -wo <dir> - WEM output folder (default: WEM)
• -wi <dir> - WEM input folder for repacking (default: WEM)
• -e - Extract only
• -p - Pack only
• -s - Skip confirmation prompt
• -no - Quiet mode
• -h - Show help

Folder Structure

BNK-Input/        Original .bnk files go here
BNK-Output/       Repacked .bnk files are created here
WEM/              Extracted and modified .wem files

Building from Source

Requirements:

• Linux: sudo pacman -S mingw-w64-gcc base-devel (Arch) or sudo apt install mingw-w64 build-essential (Ubuntu/Debian)
• Windows: I have no idea.

Compile:

make              # Build all executables
make windows      # Build all Windows executables
make linux        # Build all Linux executables
make clean        # Remove all executables

Notes

• The data.txt file allows you to replace WEM files with custom audio
• All tools create necessary folders automatically
• WEM files use their decimal ID as filename (e.g., 12345.wem)