Speed ac3 up

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What is .ac3?

Name: Audio Codec 3 File
Extension: .ac3
Format: Binary
Category: Audio
Developer: Dolby Laboratories
Description: 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.
MIME Type: audio/ac3
Sample: sample.ac3
Wikipedia: .ac3 on Wikipedia

Last updated September 28, 2026