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  1. Member
    Join Date
    Aug 2015
    Quebec, Canada
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    I'm trying to extract the audio from a video (mp4). I used mp4box to do so and it gave me a .ac-3 extension file, not the best format to edit. I would love to convert to it .mp4 (without re-encoding)

    I wonder if there's a simple way to do this ?

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  2. mp4 is a container, not a codec.
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  3. the standard audio codec used in mp4 container is aac. It's a different codec from ac3 so it will require re-encoding.
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