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  1. am trying to find a way to batch convert aac files from 25FPS(pal) to 23.976FPS(NTSC) using EAC3To since am trying to add a secondary audio to a tv show(lost 2004) the problem i think is that the audio is in 25FPS(pal) and the video is on 23.976FPS(NTSC) therefore it doesn't sync. i have tried adding a delay with mkmerge, tried 25 to 23.976 using megui, EAC3To gui but it doesn't work or am doing something wrong,
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  2. https://en.wikibooks.org/wiki/Eac3to/How_to_Use

    The HD Streams Extractor can only convert to AAC using Nero.

    You can do it with the standard audio encoder configuration and you should be able to load video files directly into the audio section. If you do, I think MeGUI ignores any audio delay specified in the container, so it'd probably pay to check for delays yourself.
    Don't correct the pitch unless the source was originally PAL, and by that I mean it was filmed at 25fps.
    When film audio is sped up for PAL it's almost never pitch corrected (concerts can be an exception to keep the music pitch unchanged), so not pitch correcting when slowing it down again will give you the original pitch.
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    Last edited by hello_hello; 4th Feb 2020 at 12:59.
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  3. You can do this with my smart FFMpeg gui, Audio track modify section
    https://forum.videohelp.com/threads/395425-New-small-GUI-for-FFmpeg
    Last edited by ProWo; 15th Feb 2020 at 05:31.
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