If the original game file was Mono and your replacement is Stereo, the audio may sound quiet or stay in one place. Convert your source file to Mono using a program like Audacity before importing.
If you replace a track but hear nothing in-game, ensure you have clicked "Yes" to all prompts regarding looping and channel differences. The tool must bold the track name to indicate a successful import.
the tool to a dedicated folder (do not run it from inside the .zip / .rar ). Open the target .acb file from your game’s directory. Replace the desired Track ID with your prepared .wav file. Save to overwrite the original archive and test in-game.
If your download fails or results in a corrupt file, it is often due to browser-level security or a "wonky" internet connection. Try downloading from a different mirror or disabling your browser's real-time protection temporarily.