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  1. 29th Dec 2017 01:10 #1
    ConverterCrazy
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    What is OPUS format?

    How to convert OPUS audio of MP4/WEBM/MKV to MP3/AC3 without re-encoding video?

    Thanks.
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  2. 29th Dec 2017 01:44 #2
    blud7
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    You may use the command line tool ffmpeg
    ffmpeg -i "video.mkv" -c:v copy -c:a aac "video_new.mkv"
    or
    ffmpeg -i "video.mkv" -c:v copy "video_new.mp4"
    since ffmpeg assumes aac audio for mp4 container.

    You may use MeGUI one-click encoding and under Advanced Config check "Don't Encode Video" and set your audio options.

    You may use Hybrid encoder and select "passthrough" for video and custom for audio, then set the audio options on the audio tab.
    Last edited by blud7; 29th Dec 2017 at 01:52.
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  3. 30th Dec 2017 04:56 #3
    ConverterCrazy
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    Thanks.

    Could not make Hybrid work for me.

    Will try batch conversion via ffmpeg. I think I there is a thread on this Forum.
    Sword is no substitute for kitchen-knife.
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  4. 31st Dec 2017 01:36 #4
    ConverterCrazy
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    Found solution here https://forum.videohelp.com/threads/386028-FFmpeg-Batch-for-Windows#post2505910

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