How to Convert MP3 to AAC

ACC stands for Advanced Audio Coding. It’s a newer kind of audio file that has been promoted as a successor to the MP3. The ACC file format offers a higher quality sound than an MP3, and is roughly half the size of MP3 file format. Also ACC provides various other advantages over MP3; ACC has the ability to handling much higher and lower frequencies of sound, while providing up to 48 channels of audio. Also, ACC allows the creation of low latency audio necessary for two way communication. For example ACC can be used to compress telephone conversations, while using MP3 would introduce delays in the audio. Mp3 format files on the other hand, while popular does not have the same capabilities of the ACC file format.

What you will need

  • iTunes


  1. Download and launch iTunes, as this program will allow you to convert MP3 to ACC format.
  2. Right click on the Windows ‘Start’ button and choose ‘Explore’ to access the folder where you MP3 files are saved. After keep the window open, as you will need to move the converted file back to the folder upon completion.
  3. Right click on one of the MP3 files you want to convert to ACC format, and then click ‘Open With.’ following this to choose the ‘iTunes’ option. This will transfer the file to iTunes.
  4. Right click the file in iTunes and select the ‘Convert Selection to ACC’ option. Depending on the size of the MP3 file, the conversion process may take over a minute. A beep with sound following the conversion process to indicate the end, and both files will be viewable in iTunes.
  5. Delete the original MP3 file, if necessary, by right clicking once on it and then selecting ‘Remove’ from the pop up warning window to delete the file. If you do not want to delete the original file, disregard this step.
  6. Move the converted file back into the original folder. Right click once on the AAC file and then click ‘Copy.’
  7. Navigate to the folder where you want to save the AAC files. Right click in a blank area of the folder, and then select ‘Paste.’
  8. View the AAC file, which can now be downloaded until an appropriate player.


  • Place all your files in one folder before converting them, as this helps to make the process faster.

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