.AC3 File Extension

Audio Codec 3 File

Developer Dolby Laboratories
3.7  |  25 Votes
Category Audio Files
Format Binary

What is an AC3 file?

Audio file saved in the AC-3 (Dolby Digital) audio format; can include up to six channels of audio (DD 5.1 surround sound with subwoofer output); uses lossy compression and often used as the format for DVDs, cinema theaters, and game consoles.

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Programs that open or reference AC3 files

Updated December 13, 2018

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