.\at9tool.exe -e -br 144 -wholeloop input_audio.wav output_audio.at9 Use code with caution. Critical Flags Breakdown -d : Initiates the sequence. -e : Initiates the encoding sequence. -br : Specifies the target bitrate in kbps (e.g., 96, 144).

For most modders looking to create custom background music (BGM) for Vita games, ensuring the source is a stereo .wav file and using the -wholeloop flag is the most reliable method.

at9tool.exe -e -br 128000 -l 0 -L 1000000 music.wav music.at9

While some GUIs exist (like the ATRACTool-Reloaded ), the raw at9tool.exe is the engine behind them. Prerequisites and Installation To use at9tool.exe successfully, you need the following: The executable file itself.

Below are the most frequently used parameters for encoding and decoding.

at9tool.exe is primarily a Windows-based tool. However, the modding community has found it to be functional on other platforms via compatibility layers:

At9tool.exe is a command-line tool used for communicating with Atmel microcontroller-based devices. The file is part of the Atmel Studio 7 installation package and is used to program, debug, and interact with Atmel devices. The tool supports a range of functions, including: