If you do not have access to any of the original Sony audio tools for handling .at3 and .aa3 files, your only option for at3 to aa3 conversion would be to use some of the 3rd party conversion programs, such as the AT3 to AA3 converter.
Convert Sony ATRAC3 audio file to Sony ATRAC audio.
We have found 3 software records in our database eligible for .at3 to .aa3 file format conversion.
Microsoft Windows software - convert at3 to aa3 on Windows
A Digital audio editing software from Sony
Convert from at3 file format
|Yes, Sound Forge supports aa3 file conversion as a target file type.||Yes||Yes||aa3 editor||Yes||No||No||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned at3 to aa3. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Audio production program from Sony.
A converter for Sony audio