.AA3

AA3 File

Sony ATRAC audio file
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A .AA3 file is associated with Sony ATRAC audio, a audio file.

Developer: Sony Category: Audio Files
OPENS ON Windows
Related: .OPUS · .M3U · .M3U8 · .WFP

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Last reviewed Aug 7, 2026

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What is the AA3 file format?

<p style="text-align: justify;">The .AA3 file extension is basically an ATRAC Audio File format. This file format is mainly a compressed audio format type that makes use of the Sony's Adaptive Transform Acoustic Coding (ATRAC) compression algorithm. The Sony audio devices mainly support this file type.<br /><br />The .AA3 file format does not comprise of any DRM (digital rights management) or copy protection. If you want to make use of the .AA3 file format to a Sony audio device, then you need to change the .AA3 extension to .OMG file format.</p>

Format details

in a nutshell
FULL NAMESony ATRAC audio file
DEVELOPERSony
CATEGORYAudio Files

Programs that open AA3 files

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