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From Amicitia Wiki
AT3 Format
Purpose Sound File
Games Persona 1 PSP
Developer Sony

AT3 is a sound format used in Persona 1 PSP. It was developed by Sony Computer Entertainment for the Sony PlayStation Portable. It is succeeded by AT9 on the PlayStation Vita.
Usage ranges from non-looping sound effects and voices to looping background music, however, this game uses AT3's for exclusively music. To make AT3's, you should use a sample rate of 44100 hz, with 16 bit depth audio.


AT3 Tools

Command line tools to make AT3's. You can download them here.

AT3 Workspace

Required to use AT3 Tools. Comes with .BAT files. Download AT3 Workspace here.

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