AT3 File Extension

AT3 file icon
ATRAC3 Audio Format
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What is AT3 file?

AT3 filename suffix is mostly used for ATRAC3 Audio Format files. ATRAC3 Audio Format specification was created by Sony. Files with AT3 extension may be used by programs distributed for Windows platform. Files with AT3 extension are categorized as Audio Files files. The Audio Files subset comprises 694 various file formats. Users are advised to use SonicStage software for managing AT3 files, although 3 other programs can also handle this type of file. SonicStage software was developed by Sony Corporation, and on its official website you may find more information about AT3 files or the SonicStage software program.

Programs which support AT3 file extension

Below is a table that list programs that support AT3 files. Files with AT3 extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support AT3 file

How to open file with AT3 extension?

Problems with accessing AT3 may be due to various reasons. What is important, all common issues related to files with AT3 extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Install SonicStage software

The main and most frequent cause precluding users form opening AT3 files is that no program that can handle AT3 files is installed on user’s system. This issue can be addressed by downloading and installing SonicStage or different compatible program, such as ACID Pro, Sound Forge Pro, Sony Vegas Pro. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading SonicStage installed is by going to developer’s website (Sony Corporation) and downloading the software using provided links.

Step 2. Update SonicStage to the latest version

You still cannot access AT3 files although SonicStage is installed on your system? Make sure that the software is up to date. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. If you have an older version of SonicStage installed, it may not support AT3 format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using SonicStage.

Step 3. Associate ATRAC3 Audio Format files with SonicStage

If you have the latest version of SonicStage installed and the problem persists, select it as the default program to be used to manage AT3 on your device. The method is quite simple and varies little across operating systems.

The procedure to change the default program in Windows

  • Right-click the AT3 file and choose Open with option
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • Finally select Look for another app on this PC, point to the folder where SonicStage is installed, check the Always use this app to open AT3 files box and conform your selection by clicking OK button

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected AT3 file open the file menu and choose Information
  • Open the Open with section by clicking its name
  • Select SonicStage and click Change for all...
  • Finally, a This change will be applied to all files with AT3 extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the AT3 for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper AT3 file. Problems with opening the file may arise due to various reasons.

1. Check the AT3 file for viruses or malware

If the AT3 is indeed infected, it is possible that the malware is blocking it from opening. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. AT3 file is infected with malware? Follow the steps suggested by your antivirus software.

2. Ensure the file with AT3 extension is complete and error-free

If you obtained the problematic AT3 file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with AT3 extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the ATRAC3 Audio Format file.

4. Make sure that the system has sufficient resources to run SonicStage

The operating systems may note enough free resources to run the application that support AT3 files. Close all running programs and try opening the AT3 file.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with ATRAC3 Audio Format files. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle AT3 files.

Conversion of a AT3 file

File Conversions from AT3 extension to a different format
File conversions from other format to AT3 file
Do you want to help?

If you have additional information about the AT3 file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on AT3 file.

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