VideoHelp Forum

Try DVDFab and download streaming video, copy, convert or make Blu-rays,DVDs! Download free trial !
+ Reply to Thread
Results 1 to 14 of 14
Thread
  1. Member louv68's Avatar
    Join Date
    Feb 2004
    Location
    Minneapolis, USA
    Search Comp PM
    Hello,

    I have some videos on a home made DVD I made years ago, that are just a tiny bit out of sync, where the audio is ever so slightly shorter than the video. It starts out perfect, then gets progressively worse.

    From memory.
    As a start, I used DVDDecrypter to rip as a VOB file, then changed the extension to mpeg. I then used MediaInfo to determine the issue:

    This is one of 15 videos.
    Video duration: 1382.882
    Audio duration: 1382.426

    What else or where should I restart to accomplish this with none or minimal audio degradation? I believe I have read that Audacity can modify the length of an audio stream. Would the audio need to be reencoded? Would it even be possible to use some tool to restamp the duration of the audio, or is that not a thing?

    Whatever assistance someone could offer would be greatly appreciated.

    If it helps, I'm using Windows 8.1 Home x64 Thank you.
    Last edited by louv68; 5th Aug 2019 at 00:41.
    -The Mang
    Quote Quote  
  2. Originally Posted by louv68 View Post
    I used DVDDecrypter to rip as a VOB file, then changed the extension to mpeg.
    Why? A VOB and an MPEG have some subtle differences, they are not the same thing. There are programs that can do the job correctly (on this site). That's the first thing I'd try to see if that cures the 'sync' problem.

    Just out of curiosity, is having an MPEG-1 video file your goal? Or will you convert it to something else? I only ask as it may be 'better' to just use something like Handrake on the ripped DVD folder and process straight from there...
    Quote Quote  
  3. Member louv68's Avatar
    Join Date
    Feb 2004
    Location
    Minneapolis, USA
    Search Comp PM
    My goal is to not convert to anything other than mpeg to not lose quality. If I can remux the files in complete audio/video sync then that would be my goal. If I could make it into a DVD that would be icing on the cake.
    -The Mang
    Quote Quote  
  4. What you really want is to make a DVD of it?

    1. Demux (open in DGIndex and File-Save Project and Demux Video)
    2. Author as DVD (Muxman, taking into account the delay given in the audio file).

    But, if the audio is out of synch in the original DVD, it'll also be out of synch in your new DVD. You should stretch it in Audacity first. Yes, it'll be reencoded. And DVD video is MPEG-2.
    Quote Quote  
  5. DECEASED
    Join Date
    Jun 2009
    Location
    Heaven
    Search Comp PM
    Originally Posted by manono View Post
    ................
    And DVD video is MPEG-2.
    Not the entire truth.

    https://www.videohelp.com/dvd#tech
    users on my IgnoreList: 162 names thus far, but featuring DB83 and manono.
    Quote Quote  
  6. Learn something new every day and thank you, El Huggunte, for the correction. However, I expect louv68's DVD video is MPEG-2.
    Quote Quote  
  7. Originally Posted by manono View Post
    However, I expect louv68's DVD video is MPEG-2.
    Yes, I thought the same thing when I first read/replied to the post. I was going to ask the OP to confirm. However, after re-reading the:
    I have some videos on a home made DVD I made years ago.
    So I made the presumption the OP was correct.

    The following (DVD specification) formats are allowed for MPEG-1 video:
    Code:
    352  288 pixels at 25 frame/s, progressive (Same as the VCD Standard)
    352  240 pixels at 29.97 frame/s, progressive (Same as the VCD Standard)
    So it seems the OP wants to go from DVD to DVD?
    Quote Quote  
  8. Member louv68's Avatar
    Join Date
    Feb 2004
    Location
    Minneapolis, USA
    Search Comp PM
    Thank you for taking the time to spell out a few things. This is exactly what I have.

    352 240 pixels at 29.97 frame/s, progressive

    I consider this to be a 2 part project.
    1. I would like to correct the audio and make new corrected MPEG's to archive them.
    2. When time allows, put them back as a DVD.

    @manono - when I stretch the audio .mpa, do I save it back as .mpa? I believe it wants to save it as a .mp3

    Full MediaInfo:
    "@type": "General",
    "VideoCount": "1",
    "AudioCount": "1",
    "MenuCount": "1",
    "FileExtension": "MPEG",
    "Format": "MPEG-PS",
    "FileSize": "247478272",
    "Duration": "1382.882",
    "OverallBitRate_Mode": "CBR",
    "OverallBitRate": "1431667",
    "FrameRate": "29.970",
    "FrameCount": "41445",
    "StreamSize": "4937413",
    "File_Created_Date": "UTC 2019-08-05 01:15:07.944",
    "File_Created_Date_Local": "2019-08-04 20:15:07.944",
    "File_Modified_Date": "UTC 2019-08-05 01:16:05.724",
    "File_Modified_Date_Local": "2019-08-04 20:16:05.724"
    },
    {
    "@type": "Video",
    "FirstPacketOrder": "0",
    "ID": "224",
    "Format": "MPEG Video",
    "Format_Version": "1",
    "Format_Settings_BVOP": "Yes",
    "Format_Settings_Matrix": "Custom",
    "Format_Settings_Matrix_Data": "1011111212121313131314141414141515151515151616161 6161616171717171717171718181819181818191A1A1A1A191 B1B1B1B1B1C1C1C1C1E1E1E1F1F21",
    "Format_Settings_GOP": "Variable",
    "Duration": "1382.882",
    "BitRate_Mode": "CBR",
    "BitRate": "1179177",
    "BitRate_Maximum": "1150000",
    "Width": "352",
    "Height": "240",
    "Sampled_Width": "352",
    "Sampled_Height": "240",
    "PixelAspectRatio": "0.889",
    "DisplayAspectRatio": "1.304",
    "FrameRate": "29.970",
    "FrameCount": "41445",
    "Standard": "NTSC",
    "ColorSpace": "YUV",
    "ChromaSubsampling": "4:2:0",
    "BitDepth": "8",
    "ScanType": "Progressive",
    "Compression_Mode": "Lossy",
    "Delay": "0.178022222",
    "Delay_Original": "0.000",
    "TimeCode_FirstFrame": "00:00:00:00",
    "TimeCode_Source": "Group of pictures header",
    "Gop_OpenClosed": "Open",
    "Gop_OpenClosed_FirstFrame": "Closed",
    "StreamSize": "203832931",
    "BufferSize": "40960"
    },
    {
    "@type": "Audio",
    "FirstPacketOrder": "1",
    "ID": "192",
    "Format": "MPEG Audio",
    "Format_Version": "1",
    "Format_Profile": "Layer 2",
    "Duration": "1382.426",
    "BitRate_Mode": "CBR",
    "BitRate": "224000",
    "Channels": "2",
    "SamplesPerFrame": "1152",
    "SamplingRate": "44100",
    "SamplingCount": "60964992",
    "FrameRate": "38.281",
    "FrameCount": "52921",
    "Compression_Mode": "Lossy",
    "Delay": "0.178022222",
    "Delay_Source": "Container",
    "StreamSize": "38707928",
    "StreamSize_Proportion": "0.15641"
    },
    {
    "@type": "Menu",
    "Format": "DVD-Video"
    -The Mang
    Quote Quote  
  9. I find it difficult to read your reply. You should have used some 'code' tags maybe for the mediainfo ouput. Hopefully a 'Mod' will re-format.
    Quote Quote  
  10. Originally Posted by louv68 View Post
    352 240 pixels at 29.97 frame/s, progressive
    So it's really MPEG-1, as you said? Wrong twice in the same thread then. Who makes home DVDs as 352x240? Unless, maybe, it's a very long video?

    Anyway:

    @manono - when I stretch the audio .mpa, do I save it back as .mpa? I believe it wants to save it as a .mp3
    I wouldn't. I'd save it as AC3. In Audacity you never have to (and never should, if for DVD) save as MP3. When you go File->Export Audio, there's a drop-down box giving you a range of choices. Also, make sure it's 48000Hz (which it should already be).

    Technically, MPA audio isn't allowed for NTSC DVDs, although most players will play it, I understand. MPA audio is for PAL DVDs.
    Quote Quote  
  11. Member louv68's Avatar
    Join Date
    Feb 2004
    Location
    Minneapolis, USA
    Search Comp PM
    Thank you for the input.

    Like I said, it's a very old DVD I made I think around 2005 or so. The source was from a friends camera if I remember correctly, thus the lower resolution.

    I'll give this a go as soon as I have some time, and will report back my results.

    Thanks again.
    -The Mang
    Quote Quote  
  12. Hi, Have you try another software like Stellar Audio recovery, iSkysoft Data Recovery ...etc to fix this problem excluding Audacity!!!
    Quote Quote  
  13. Member Cornucopia's Avatar
    Join Date
    Oct 2001
    Location
    Deep in the Heart of Texas
    Search PM
    No, audacity is the better and more appropriate software for this job (cheaper, too).

    Scott
    Quote Quote  
  14. Originally Posted by louv68 View Post
    it wants to save it as a .mp3
    Use the "Save as type" pulldown on the Export Audio dialog to select MP2 (same as your source) or AC3.
    Quote Quote  



Similar Threads