Technically proprietary Sony software; usually found in modding circles.
Yes, but with consequences.
AT9Tool.exe is a powerful utility for managing and configuring AT9 devices. By following this guide, users can effectively use the tool to perform various tasks and troubleshoot common issues.
: at9tool.exe is a specialized tool for working with ATRAC9 audio files. Its conversion capabilities and straightforward approach make it a valuable resource for those dealing with this specific format. While the lack of a GUI might deter some users, the tool's efficiency and reliability make it a commendable choice for its target audience. Regular updates and an active community add to its appeal, ensuring that users have support and can look forward to future enhancements.
Manually converting dozens or hundreds of files one by one is tedious. The tool can be integrated into a for bulk operations. For example, a simple script can automate the conversion of all .wav files in a folder to .at9 format, saving an immense amount of time for large modding projects. The community has also created tools like at9convert.jar , which automatically finds and processes all .at9 files in a folder, acting as a more efficient frontend for the command-line tool. at9tool.exe
Because at9tool.exe originates from legacy compiler environments, users running modern versions of Windows (such as Windows 10 or Windows 11) frequently encounter software crashes or missing file errors.
Note: Ensure your source BGM.wav file is exported as a track; attempting to encode a mono file or mismatched bitrate format can result in a corrupted 0 KB output payload. 2. Unpacking Game Assets to Extract Raw Audio
: It is frequently used by modders to replace music in titles like Persona 4 Golden or Taiko no Tatsujin .
| Parameter | Description | Common Values | | :--- | :--- | :--- | | -d | Decode (AT9 → WAV) | N/A | | -e | Encode (WAV → AT9) | N/A | | -br | Bitrate (used with -e ) | 96, 60, 48, 32 (96 is common for high quality) | | -loop | Define loop points for BGM | -loop start_sample end_sample | | -wholeloop | Simple looping | Use for music that loops from the start of the file | | -h | Display help | Shows all available commands | By following this guide, users can effectively use
For background music tracks that need to repeat seamlessly, developers append loop arguments: at9tool.exe -e -loop 44100 88200 input.wav output.at9 Use code with caution.
The tool serves as the official SCEI (Sony Computer Entertainment Inc.) ATRAC9 Codec Tool . Its primary function is to encode standard audio formats (like .wav ) into the proprietary .at9 format used by modern Sony consoles, or decode those files back into a playable format for PC.
: This script-based utility, available via the Tupelov AutoAT9Tools GitHub Repository , streamlines bulk audio asset deployment for games like Persona 4 Golden and Persona 3 Portable .
XyLe-GBP/ATRACTool: Utility tool to convert Sony's ... - GitHub While the lack of a GUI might deter
: Essential for modding audio in games like Persona 4 Golden , Taiko no Tatsujin , and Skyrim/Fallout 4 on PS4.
Note: The -br parameter denotes the target bitrate in kilobits per second (kbps), allowing developers to balance sound fidelity against total storage constraints. Automated Batch Conversion Scripts
Supports precise looping metadata embedding, which is critical for video game audio. How to Use AT9Tool.exe (Step-by-Step)