The ad3 file extension is related to the ADPCM 3-bit compressed voice file format.

There are 2 other file types using
the AD3 file extension!

ad3 file icon.ad3 - ADHOCw file

ad3 file icon.ad3 - Demand Activated Manufacturing Architecure file

Detailed description

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AD3 file extension - ADPCM 3-bit compressed voice file

What is ad3 file? How to open ad3 files?

File type specification:

Audio and sound file type icon Audio and sound file type

The ad3 file extension is used for an ADPCM audio file format.

Adaptive Differential Pulse Code Modulation (ADPCM) codecs are waveform codecs which instead of quantizing the speech signal directly, like PCM codecs, quantize the difference between the speech signal and a prediction that has been made of the speech signal.

The ad3 file stores 3-bit compressed voice.

Help how to open AD3 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 AD3:

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

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AD2 file extension

File-Extensions.org > Audio and sound file types

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file extension AD4

 

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