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  1. Hi guy's
    well .. I'm used to using 1click apps like avstodvd but figured to try this one on my own have an avi at 23.976 and using fitcd to write the avs script for me then then check bitrate needed in avidemux bitcalc so i set it all up except i'm not very good with FR's :P all I know is 23.976 standard NTSC 25.000 My region pal and 29.970 is film standard NTSC hope that's right or close enough. How can I or what settings to make my demuxed ac3 audio and hcencgui video all From 23.976 to pal 25 framrate all in sync?

    and this is the script # -= AviSynth v2.5.8.5 script by FitCD v1.2.8 =-
    AVISource("C:\Users\dylan\Videos\testvideos\Test.a vi")
    LanczosResize(688,416,2,0,636,352)
    AddBorders(16,80,16,80)
    AssumeFPS(25.000, true)
    #Trim(0,161395).FadeOut(150)
    Last edited by dylz; 24th Jan 2011 at 05:37.
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  2. Always Watching guns1inger's Avatar
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    Can I strongly suggest you don't screw with the frame rate at all. The vast majority of Australian hardware will happily play NTSC, and it will do the conversion a damn site better than you will through software. Encode it at 23.976 fps, resized to 720 x 480, with 2:3 pulldown enabled, then author as NTSC. You will get far better results. I can't remember the last time I bothered to do a format conversion. If you must do one (and honestly, I cannot see a good reason to do this), start with AVStoDVD and look at the script it creates. It will do the conversion the recommended way, which is to resize to PAL but keep the NTSC framerate, then use DGPulldown to do a custom pulldown from 23.976 to 25 fps. You get to keep the audio in sync, and avoid having to actually do framerate conversion.
    Read my blog here.
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  3. I normally never do as my bluray bplays all framerats NTSC>PAL speed up function though this is for my mum and her dvdplayer is like a $50 cheapo like 4 years ago and can only do pal and can only play mp3 ac3 mpeg2 .
    also does dgpulldown just do a header fr change so it appears to have changed and the player will except it this also was the method I was gonna choose.
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  4. Last edited by dylz; 24th Jan 2011 at 06:10.
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  5. Always Watching guns1inger's Avatar
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    The pulldown method is more sophisticated than the header change. It tells the player to create the missing frames on the fly, in the same way NTSC movies are encoded at 23.976 fps, but play back at 29.970 fps on interlaced TVs. Like I said, use AVStoDVD to create a script for you to have a look at.
    Read my blog here.
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  6. Member AlanHK's Avatar
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    Originally Posted by dylz View Post
    FR's :P all I know is 23.976 standard NTSC 25.000 My region pal and 29.970 is film standard NTSC hope that's right or close enough. How can I or what settings to make my demuxed ac3 audio and hcencgui video all From 23.976 to pal 25 framrate all in sync?
    That should work fine for the video, and audio should be in sync.
    To make sure use EnsureVBRMP3sync()

    To make AC3 audio from that there are several ways.
    Perhaps the simplest is to get the Avisynth Soundout plugin, from this zip file.

    Copy the Soundout.DLL file into the Avisynth plugins folder.

    You need to adjust the audio sampling rate to the DVD standard 48000. For that you use
    ResampleAudio(48000)


    So after installing the Soundout dll, you can use use this script:

    Code:
    AVISource("C:\Users\dylan\Videos\testvideos\Test.avi")
    EnsureVBRMP3sync()
    LanczosResize(688,416,2,0,636,352)
    AddBorders(16,80,16,80)
    AssumeFPS(25, true)
    ResampleAudio(48000)
    Soundout()
    When you view this file, eg using VirtualDub, or MediaPlayerClassic, the Soundout GUI will pop up. You can use that to save the audio to an AC3 file. Choose 128 kbps for the quality, higher if you like, though that's fine for most movies and TV shows.

    After you've made your AC3 you can delete the Soundout() line or disable it by putting a # in front of it so it won't pop up every time you open the AVs or encode video, though it's harmless, it does nothing unless you choose a function.
    Last edited by AlanHK; 24th Jan 2011 at 07:09.
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  7. You can keep the audio unchanged (if it's already AC3) by resizing to 720x576 but keeping the 23.976fps framerate. Don't even put the audio into the script but bring it back in at the authoring stage. After you get your 23.976fps MPV, run it through DGPulldown set for 23.976->25.
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