For video game background music, looping is essential. If your .wav file already contains loop points embedded in its metadata, you can preserve them with the -loop flag: at9tool.exe -e -loop input.wav output.at9 Use code with caution. To Decode AT9 back to WAV:
The source .wav file is likely saved in a 24-bit or 32-bit float format.
To convert an ATRAC9 file back to a playable WAV file, use the decode ( -d ) flag. at9tool.exe -d input.at9 output.wav Use code with caution. Troubleshooting Common Issues at9tool.exe
It is for antivirus software to flag at9tool.exe (and other modding tools) as a virus or malware. This is usually a false positive and is often not a reason for alarm.
Sets a precise loop where S is the start sample frame and E is the ending sample frame. Step-by-Step Workflows How to Encode a WAV File to AT9 For video game background music, looping is essential
at9tool.exe is typically distributed as part of the or the specific PhyreEngine packages. It is distinct from the older at3tool (used for ATRAC3 on the PSP and PS3).
Fix: This tool relies on older runtime libraries. Download and install the Microsoft Visual C++ 2010 Redistributable Package (x86 or x64 depending on your OS). To convert an ATRAC9 file back to a
For more sophisticated audio work, especially in games, you often need to create a seamless loop that doesn't start from the very beginning of the track. The -loop parameter is designed for this.
at9tool.exe operates through a standard Command Prompt ( cmd.exe ) interface. It features two primary operational pathways: