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AD2 file - How do I open a .ad2 file?

The table below provides useful information about the .ad2 file extension. It answers questions such as:

Table of Contents

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

✅ ADPCM 2-bit Compressed Audio

ADPCM 2-bit Compressed Audio .ad2 file icon
The AD2 file is an ADPCM 2-bit Compressed Audio. Adaptive Differential Pulse Code Modulation (ADPCM) is a digital compression technique used mainly for speech compression in telecommunications.
The AD2 format description is not yet available
Category: Audio files
Application: Awave Studio
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
AD2 aliases:
AD2 related links:
AD2 related extensions:
Windows Waveform Sound

Dialogic ADPCM Audio

Dialogic ADPCM Audio File

Other types of files may also use the .ad2 file extension.

🚫 The .ad2 file extension is often given incorrectly!

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

a2, a2d, ac2, ad, ade, adq, adw, adz, af2, ar2, as2, ax2, d2, da2, qd2

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

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🔴 Can't open a .ad2 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 .ad2 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 .ad2 file extension, write to us!

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