File Extension AAC

  • Full name
    Advanced Audio Coding Format
  • Developer
  • Popularity
Have you encountered a problem with a AAC file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a AAC file here. In the further part of this page we have added a list of programs that should open your AAC file. It is enough you choose a proper application for your operating system, download and install it.


Files ending in AAC contain audio encoded with Advanced Audio Coding compression.

This proprietary and lossy process has been developed as the successor to the popular MP3 format. It offers higher quality, more possibilities and has been standardized as part of the MPEG II and IV standards.

There are various profiles that are intended for specific applications.

The most common is LC (Low Complexity), which is used eg on Apple iTunes and RealNetwork.

It supports sample rates from 8 to 96kHz, a wide range of bit rates (depending on the profile) and up to 48 channels.

The contents of the file may also be protected by DRM (Digital Rights Management). Then you need a corresponding, possibly paid license to view the content.

Audio data encoded with AAC can also be found in other container formats such as mp4, m4a, m4b or even 3gp. This format is also used in video containers such as mp4 and mkv.

Most audio players can play this format, but they do not always recognize the extension. Even streamed content like Internet radios often use AAC.

Programs which can open a AAC file

How to open a AAC file? Advice and guidance

Absolutely most often appearing reason that prevents you from opening the AAC file is the lack of a proper application to support it in your operating system. It is notably the first thing you need to address. When one of the programs to support a AAC file from the list is already installed, you can try to rerun the file. The system should display a message asking you to choose a primary application to support AAC files. At this point we are looking for disk space where the application was installed in and we can link it with a AAC file. Since then, our operating system will use the selected program to support all AAC files.

Other issues

Despite the described problem with AAC there may be many more problems. If the existing operations were not effective, get involved with the following matters:

- verify that the AAC file is not damaged and that it has been downloaded or copied in whole
- verify that the file has a file extension that has not been intentionally changed (for example, if it do not contain other information than its extension suggests)
- make sure again whether the AAC file type is linked in the operating system with a proper program
- make sure that the file is not infected with a virus and you have up to date software and drivers.

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