At9tool.exe -

: It replaced ATRAC3 and ATRAC3plus, which were standard on the PSP and PS3.

Looping: Setting specific loop points within an audio file so that background music transitions seamlessly. at9tool.exe

To make background music loop seamlessly on a PS Vita custom theme, you need to flag the file for looping during encoding. at9tool.exe -e -br 144 -wholeloop input.wav output.at9 Use code with caution. -e : Specifies the operation. : It replaced ATRAC3 and ATRAC3plus, which were

-loop S E : Configures exact custom loop point boundaries where S represents the starting sample index and E defines the ending loop sample marker. at9tool

The tool acts as a bridge between standard Wave (.wav) files and Sony's compressed audio formats. files (used in PS Vita and PS4 games) back into playable Compresses standard audio into

The tool is designed to be used from the command line, offering precise control over the encoding process. The most common method to use it is by creating a simple Graphical User Interface (GUI) wrapper around it to make it more user-friendly. Regardless, its capabilities are unlocked through specific commands.