Creating Audio Mods See Extracting Game Audio before proceeding. Instructions are for Windows users. Audio Editing Download an audio-editing tool of your choice, such as Audacity - Download Edit the audio files in your audio-editing tool. For replacing audio without making any adjustments to a PCK file, make sure that your edits match the start and end length of the audio track. SFX, VO, & MUSIC: Convert all of the audio you want to export to WAV (32 bit for high quality). Wwise Launcher (MUSIC) - Atlan Mod Loader & idStudio Create an audiokinetic account (use free trial) and install Audiokinetic Launcher - Download Install Wwise Version 2022.1.18.8567 for the best experience. Go to Wwise Launcher  ->  WWISE  ->  Launch Wwise (64-bit)  ->  New (Project Launcher)  ->  Provide it a name  ->  Select None (Import assets to project)  ->  OK Close (License Manager)  ->  Project  ->  Project Settings (SHIFT + K)  ->  Source Settings -> Default Conversion Settings ...  ->  Vorbis / Vorbis Quality HighDefault Conversion Settings ...  ->  PCM / PCM Auto Detect HighOK  ->  OK Audio File Importer (SHIFT + I)  ->  Add Files...  ->  Select your WAV files  ->  Open  ->  Import (Replace any if needed) Project  ->  Convert All Audio Files...  ->  Check Windows (If it is not already checked)  ->  OK File Manager (SHIFT + F1)  ->  Right Click Project Folder Directory  ->  Open Containing Folder  ->  .cache\Windows\SFX  (It is recommended to bookmark this directory) Be sure that the exported WEM files end with the appropriate values. MUSIC  -> _3F75BDB9SFX  ->  _9D0E2A85VO  ->  _10C4C929 Be sure to remove the appending values after the ID when you add the WEM files to your mod. See also: https://wiki.eternalmods.com/books/eternal-idstudio/page/how-do-i-create-idstudio-mods Adding Audio to your Mod Create a folder in your Atlan mod called audio. Copy your converted WEM file(s) in there and make sure they have the same ID as the audio file you want to replace. Any content prior to id# is irrelevant.ex: samuelsbase_music_main_heavy_0_0_id#15098487.wem Package your mod, then run the AtlanModLoader.