There is one other file type using
the AD2 file extension!

ad2 file icon.ad2 - ad2 web page script file

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AD2 file extension - ADPCM 2-bit compressed voice file

What is ad2 file? How to open ad2 files?

File type specification:

Audio and sound file type icon Audio and sound file type

The AD2 file extension is related ADPCM. Adaptive Differential Pulse Code Modulation (ADPCM) is a lossy compression format, which means that some data is altered and lost during compression. ADPCM can achieve compression ratios of up to 4:1. 2-bit compressed voice file.

Help how to open AD2 files:

Currently there is no specific information available, about how to open this sound file type.

For general information try to look at:
Basic info how to open audio files

How to convert file with extension AD2:

Currently there is no specific information available, about how to convert this sound file type.

For general information try to look at:
Basic info how to convert audio files

Related links:

ADPCM Overview

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ACT file extension

File-Extensions.org > Audio and sound file types

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file extension AD3

 

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