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AD3 file extension

The table below provides useful information about the .ad3 file extension. It answers questions such as:

  • What is the .ad3 file?
  • What program do I need to open a .ad3 file?
  • How can the .ad3 file be opened, edited or printed?
  • How can I convert .ad3 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ 3-bit ADPCM Compressed Audio

3-bit ADPCM Compressed Audio .ad3 file icon
AD3 file is a 3-bit ADPCM Compressed Audio. Adaptive Differential Pulse Code Modulation (ADPCM) is a digital compression technique used mainly for speech compression in telecommunications.
AD3 format description not yet available
Category: Audio files
Application: SoX
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
AD3 aliases:
AD3 related links:
AD3 related extensions:
4-bit ADPCM Compressed Audio

Other types of files may also use the .ad3 file extension.

🚫 The .ad3 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

a3d, ac3, ad, ade, adr, adw, af3, ar3, as3, av3, ax3, d3, da3, qd3, wd3

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

After Dark Screensaver
SPICE AC/Frequence Data
Panasonic Arbitrator Video Data
After Dark Randomizer Data
DSM Application Diagram
MyDOS Ramdisk Image
Amapi Designer 3D Model
Apex Sketch v3 Document
Adhawin Transliteration Scheme
AxSys Script

🔴 Can't open a .ad3 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .ad3 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .ad3 file extension, write to us!

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