Open AC3 file

AC3 files: what are they and how do I open them?

ac3 file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.ac3 file type #1: Dolby Digital sound

An ac3 file extension is associated with the Dolby Digital sound file format also known as AC3 (Audio Coding 3).

Further details:

The ac3 file extension is used for for Dolby Digital sound files.

Launched in 1987, the Dolby Digital format is a digital audio encoding standard developed by Dolby Labs.

Unlike Dolby ProLogic systems, Dolby Digital audio tracks are independent (the term "discrete" is also sometimes used). For consumer electronics, the Dolby Digital format relies on a compression algorithm called AC3 (Audio Coding 3), which can compress audio streams by a factor of 10 to 12 with a 16-bit sampling rate of 48 kHz, for an overall bitrate of 384 kbps. For this reason, the Dolby Digital format is sometimes called Dolby AC3. For professionals, instead of an AC3 decoder, Dolby Digital uses a system called SR-D.

Dolby Digital is likely the most commonly used system in home theater systems. To be able to use media recorded in Dolby Digital format (DVD video or DVD audio, for example), you need a device with an integrated AC3 decoder.

Open file with:

Media Player icon

Media Player

Windows 11 default media player.

VLC media player icon

VLC media player

One of the most popular multi-platfom multimeda player

Freemake Audio Converter icon

Freemake Audio Converter

A popular free audio converter

Aimersoft Video Converter for Mac icon

Aimersoft Video Converter for Mac

A multimedia converter software

Aimersoft DRM Media Converter for Windows

A DRM remover and media converter

VLC media player for Android icon

VLC media player for Android

Android version of the popular VLC Media Player

MediaCoder icon


A free universal media transcoder for Windows

Freemake Video Converter icon

Freemake Video Converter

One of the most popular and free video conversion sofrware

DVBPortal MP4Muxer

A multimedia muxing software

iPad Video Converter Factory Pro

A multimedia converter for formats suitable for iPad tablets

.ac3 file type #2: SPICE AC/frequence domain output file

Files ac1 extension are used by SPICE. They contain domain output data.

Further details:

The ac3 file extension is associated with SPICE (Simulation Program with Integrated Circuit Emphasis) program, developed by National Instruments Corporation. The ac3 extension files are used for AC/frequence domain output.

Open file with:


A computer simulation and modeling software

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.ac3" has the file extension "ac3". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

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