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  1. Hiya guys, I have never had issue with my Denon AVRX2200W playing different formats, but run into a movie with Dolby Digital Plus (EAC3) and whilst it's playing the audio, there's no center speaker. Not sure if my amp doesn't support it, but how can I convert EAC3 to AC3? I was hoping it was something Avidemux or something could do? I don't want to change quality or anything, just convert. Step by step would be amazing.
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  2. At first you can try online (real time/live) E-AC3 to AC3 conversion - AFAIR ffdshow and dedicated http://www.ac3filter.net/wiki/AC3Filter offer such feature - sadly seem both are bit outdated.
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  3. If you are playing from your PC or another player that convert the audio during playback I prefer something as pandy suggested.


    Otherwise:
    ffmpeg -i "INPUT" -map 0 -c:v copy -c:a ac3 -c:s copy "OUTPUT"

    In AviDemux it should be as simple as opening the file, setting video to "copy" and audio to "ac3 (lav)", then saving (ac3 usually in mkv container).
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  4. Note that eac3to can handle less EAC3 variants than ffmpeg. So should eac3to fail it can still make sense to test ffmpeg or other ffmpeg based software.
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  5. Member
    Join Date
    Nov 2019
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    Germany
    Search Comp PM
    Is it possible to convert only one specific EAC3 track without overwriting the existing ones? And how can I avoid that FFMPEG adds global tags, tags and a V_MJPEG track?!

    Before:
    Image
    [Attachment 51047 - Click to enlarge]


    After (with @sneaker 's code):
    Image
    [Attachment 51048 - Click to enlarge]
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  6. Originally Posted by mgutt View Post
    Is it possible to convert only one specific EAC3 track without overwriting the existing ones?
    Code:
    ffmpeg -i "INPUT" -map 0 -c:v copy -c:a:0 ac3 -c:a:1 copy -c:a:2 copy -c:s copy "OUTPUT"
    https://ffmpeg.org/ffmpeg.html#Stream-specifiers-1
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  7. Member
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    I agree with sneaker. I do it all the time with avidemux. It's faster and easier than anything else I've tried.
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  8. Member
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    @dfisher052

    avidemux does not open all my MKV files and it removes the chapters!

    And finally it takes a long time to open a file. Only for converting UsEac3to is much faster (if it works), but the most comfortable app (if it works) is Popcorn MKV AudioConvert because of its ability to batch convert a complete folder.
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  9. is there an all in one tool that will auto convert the audio from E-AC3 to AC3 during the blu ray conversion? BDtoAVCHD does not work with such audio, i believe it uses eac3to tool but always fails. HandBrake works however it always makes the video portion worst.
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