VideoHelp Forum

Try DVDFab and copy Ultra HD Blu-rays and DVDs! Or rip iTunes movies and music! Download free trial !
+ Reply to Thread
Page 1 of 5
1 2 3 ... LastLast
Results 1 to 30 of 142
Thread

Threaded View

  1. Member
    Join Date
    Jun 2006
    Location
    Canada
    Search Comp PM
    Hi,

    Is there any way (or what tool should I use) to fix an audio synch problem in an AVI file (movie)? Thanks.
    Quote Quote  
  2. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    What sort of sync problem ?

    Does it start early ?
    Does it start late ?
    Is it out by a constant amount the whole way through ?
    Does it drift in and out ?
    Does it start in sync then get progressively further out as the movie runs ?

    All are possible, and all have slightly different solutions, from simply delay adjustments through to difficult re-editing jobs.

    Does the sync problem occur in all players, or only some ?
    Read my blog here.
    Quote Quote  
  3. Member
    Join Date
    Jun 2006
    Location
    Canada
    Search Comp PM
    guns1inger,

    The sound is slightly ahead of the video during the whole movie, probably means the sound starts a little earlier.

    The problem occurs in all players including MPC.

    Thanks.
    Quote Quote  
  4. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    Open the video in MPC, then click on Play -> Audio -> Option. Tick the box next to Audio time shift(ms), and enter a number. Click OK, and play the video. Keep changing this number until the audio lines up. Once you are happy that you have found the delay in milliseconds, open the video in virtualdubmod and click on Streams -> Stream List. Right-click and select Interleaving. In the bottom section of the dialogue, marked Audio Skew Correction, enter the number you found in MPC. Click OK, OK. Click on File -> Save As, and using Direct Stream Copy, save a new, hopefully corrected, avi file.
    Read my blog here.
    Quote Quote  
  5. Member
    Join Date
    Apr 2010
    Location
    indonesia
    Search Comp PM
    Originally Posted by guns1inger View Post
    Open the video in MPC, then click on Play -> Audio -> Option. Tick the box next to Audio time shift(ms), and enter a number. Click OK, and play the video. Keep changing this number until the audio lines up. Once you are happy that you have found the delay in milliseconds, open the video in virtualdubmod and click on Streams -> Stream List. Right-click and select Interleaving. In the bottom section of the dialogue, marked Audio Skew Correction, enter the number you found in MPC. Click OK, OK. Click on File -> Save As, and using Direct Stream Copy, save a new, hopefully corrected, avi file.
    It worked. thanks.
    Quote Quote  
  6. Originally Posted by guns1inger View Post
    Open the video in MPC, then click on Play -> Audio -> Option. Tick the box next to Audio time shift(ms), and enter a number. Click OK, and play the video. Keep changing this number until the audio lines up. Once you are happy that you have found the delay in milliseconds, open the video in virtualdubmod and click on Streams -> Stream List. Right-click and select Interleaving. In the bottom section of the dialogue, marked Audio Skew Correction, enter the number you found in MPC. Click OK, OK. Click on File -> Save As, and using Direct Stream Copy, save a new, hopefully corrected, avi file.


    hi i saw that you managed to help on this question and wondered if you could help me,, i burnt a dvd for my son using convertxtodvd and the sound cut off half way through? do you know any reason why it might have done this?
    Quote Quote  
  7. Member
    Join Date
    Aug 2010
    Location
    United States
    Search PM
    I currently use a program called "Next DVD ripper" to convert DVD's to avi files. Often times it converts the dvd to avi with no problems, but I have noticed with some movies that there are some a/v sync issues. I've tried using VirtualDubMod to fix this, but I haven't had any luck. Are there any other fixes that I could try? I am also interested to know if there are any better ways(programs used) to convert my dvd's to avi that maybe some of you more advanced users might use. I am not opposed to using a couple of programs, one that gets through the dvd encryption and then one that encodes to avi, if this will give me better results. Thanks again for all the help!
    Quote Quote  
  8. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    Originally Posted by DVD-AVI View Post
    I currently use a program called "Next DVD ripper" to convert DVD's to avi files. Often times it converts the dvd to avi with no problems, but I have noticed with some movies that there are some a/v sync issues. I've tried using VirtualDubMod to fix this, but I haven't had any luck. Are there any other fixes that I could try? I am also interested to know if there are any better ways(programs used) to convert my dvd's to avi that maybe some of you more advanced users might use. I am not opposed to using a couple of programs, one that gets through the dvd encryption and then one that encodes to avi, if this will give me better results. Thanks again for all the help!
    Use a better quality tool. Rip with a quality ripper that is kept up to date - DVDFab Decrypter (free) or AnyDVD (not free) then convert to AVI using AutoGK or AVI.net, or MP4/MKV with Handbrake
    Read my blog here.
    Quote Quote  
  9. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    Originally Posted by kellz View Post
    hi i saw that you managed to help on this question and wondered if you could help me,, i burnt a dvd for my son using convertxtodvd and the sound cut off half way through? do you know any reason why it might have done this?
    Most likely either because you joined two parts and the second part was corrupt, or the source file has a glitch part way through. You could try loading the file into AVI Demux, letting it fix any index issue, unpack it if necessary, then save a new version for converting. Or try using a different converter - I like AVStoDVD.
    Read my blog here.
    Quote Quote  
  10. Originally Posted by guns1inger View Post
    Open the video in MPC, then click on Play -> Audio -> Option. Tick the box next to Audio time shift(ms), and enter a number. Click OK, and play the video. Keep changing this number until the audio lines up. Once you are happy that you have found the delay in milliseconds, open the video in virtualdubmod and click on Streams -> Stream List. Right-click and select Interleaving. In the bottom section of the dialogue, marked Audio Skew Correction, enter the number you found in MPC. Click OK, OK. Click on File -> Save As, and using Direct Stream Copy, save a new, hopefully corrected, avi file.
    How Long should this take? I used VLC to determine a value of 500 Audio Skew Correction. Original file size is 697mb. VirtualDubMod status window shows a projected file size of 691.55mb and has been working for 2hrs08mins. The destination folder has my output file showing as 712mb already but is unplayable. The bit rate of the original file is 123kbps. For others who have had success with this approach the process seems to have been fairly quick from what I've read. Any Ideas what I might be Doing wrong or if I have to change a step?
    Quote Quote  
  11. Originally Posted by sickman131 View Post
    Any Ideas what I might be Doing wrong or if I have to change a step?
    Did you set the video for Direct Stream Copy? It says it in guns1inger's instructions, but are you sure you didn't choose a codec and do it that way?

    Anyway, if you can't get it to work using VDubMod, try VDub. It shouldn't take more than ... what? ... 15 seconds or so?
    Quote Quote  
  12. Originally Posted by manono View Post
    Originally Posted by sickman131 View Post
    Any Ideas what I might be Doing wrong or if I have to change a step?
    Did you set the video for Direct Stream Copy? It says it in guns1inger's instructions, but are you sure you didn't choose a codec and do it that way?

    Anyway, if you can't get it to work using VDubMod, try VDub. It shouldn't take more than ... what? ... 15 seconds or so?
    Thanks for the quick response! Pretty sure I selected Direct Stream Copy, don't think I selected a codec. I've run the file through xmediarecode and now have a file of 1.07gb at 128kbps. I'm going to try again and see what happens with this one. If it doesn't work I have one more option with virtualdubmod plus your solution with virtualdub. Thanks again.





    OK, so that didn't work. When the Green progress bar reaches the end the job clock just keeps progressing. I have a file of 1.09gb but it is not viewable. The main program window has a header saying(dub in progress).

    When I "save file" and select "direct stream copy" should all the check boxes be checked, unchecked or some combination thereof?




    Turns out I had two copies of VirtualDubMod, one doesn't work properly. Been so long Since i Used the program I forgot about this issue. Sorry for wasting our time, lol!
    Last edited by sickman131; 15th Jun 2014 at 23:13. Reason: To provide more info
    Quote Quote  
  13. I read a number of the pages which talked about MPC early on. It mentioned setting a numeric value during playback to help a sync problem.

    I saw no mention of another technique from a popular player:

    VLC can change audio delay plus or minus in 50 ms increments from the keyboard.

    -- > Use the "k" key to advance

    -- > Use the "j" key to subtract time.

    This is best done at a Pause in the playback. It's fast and efficient and can indicate what needs to be done for a permanent fix.
    Quote Quote  
  14. Member
    Join Date
    Jun 2006
    Location
    Canada
    Search Comp PM
    Thank you! I will try it right now.
    Quote Quote  
  15. Member
    Join Date
    Jun 2006
    Location
    Canada
    Search Comp PM
    It worked. Thank you!
    Quote Quote  
  16. Is there a way to fix a file who's audio goes out of sync about 47 minutes into it? I'd like to fix the audio and then burn the file to a DVD
    Quote Quote  
  17. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    So the audio is in sync up until that point, then goes out of sync ?

    Generally this is cause by corruption of the file, or joining files together badly. Best option in this type of case is to cut the audio at the point it goes out of sync, then to adjust the second half of the audio independently. You can use any audio editor to do this - audacity, goldwave, sound forge etc. Editors like goldwave and sound forge that can display the video with the audio are an advantage.

    Otherwise you can cut and shift it in your video editor until the audio is right, save just the audio, then use virtualdubmod to replace the old audio with the new one.
    Read my blog here.
    Quote Quote  
  18. Member
    Join Date
    Dec 2006
    Location
    United States
    Search Comp PM
    I shot my video with my Canon Powershot SD600 camera, audio and video can sync without a problem in Windows Media Player, however once I upload the video to youtube, the audio is late for a couple of seconds. Any suggestions? I'm thinking to use a tool to find out the audio format, then re-encode the audio to another format, perhaps MP3, do you think this would work?

    Thanks in advance.
    Quote Quote  
  19. I have a similar problem, but confusing. I download a TV series and try to put the 4 episodes onto a dvd. I use Winavi to convert the episodes to dvd format, all Ok, audio is fine when i check them. I then use either nero or TMPGEnc to encode the dvd's. it at this stage that things go wrong, having burnt a couple of dvd's before checking the dvd's, i discovered that the audio had gone out of sync on all of each episode, by about a second or so, and all the way through. When i have checked the output on nero before burning the disks, the audio was out at this stage. I do a similar thing with another series, but the downloaded files are mpeg and have no problems at all. I have tried the avi files on a data dvd and they work fine, almost there you might think, but my wife watches them on a dvd/tv combo that dosnt recognise avi files. Any ideas would be so good, many thanks,
    John
    Quote Quote  
  20. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    Why people use WinAVI I still don't know, but for argument's sake, let's assume WinAVI has done it's thing and converted your xvids to DVD format. If it has done it correctly, you should have a video_ts folder with .ifo, .bup and .vob files in it. There is nothing else to do to it. NeroVision will only re-encode it and give you lower quality than you have now.

    If WinAVI has not given you this folder then it hasn't done what it should, and should be un-installed as it is using valuable HDD space for no reason.

    Simply burn this folder to a DVD using imgburn 2 and play it.
    Read my blog here.
    Quote Quote  
  21. Winavi has done its thing, and seems to be ok, when i checked the output useing VLC everything is ok, it all goes pearshaped on the next step when encoding the dvd. Im baffled as well, im not exactly tottaly literate on this, but i have been doing it for some time. I think my next step is to unistall everything associated with dvds and codecs, the lot, and start again, bit by bit, and see what happens, got to go to work now, will check bak later, many thanks
    John
    Quote Quote  
  22. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    You only encode once - which is what WinAVI is doing. If it produced the video_ts folder, then you have your DVD. All you need to do is burn it to disc. ImgBurn2 is the best software to do this. I suspect your issue is that you are then running it through NeroVision, which you do not need to do.

    So before you go uninstalling and changing things, how about you start a new thread in this forum, explaining all the steps and software you use, and we will solve your problem.
    Read my blog here.
    Quote Quote  
  23. OK, many thanks
    john
    Quote Quote  
  24. Member
    Join Date
    Jan 2007
    Location
    United Kingdom
    Search Comp PM
    What do you do if the audio is slower than the video? Thanks
    Quote Quote  
  25. Member Hittz's Avatar
    Join Date
    Dec 2006
    Location
    United States
    Search Comp PM
    Originally Posted by guns1inger
    Open the video in MPC, then click on Play -> Audio -> Option. Tick the box next to Audio time shift(ms), and enter a number. Click OK, and play the video. Keep changing this number until the audio lines up. Once you are happy that you have found the delay in milliseconds, open the video in virtualdubmod and click on Streams -> Stream List. Right-click and select Interleaving. In the bottom section of the dialogue, marked Audio Skew Correction, enter the number you found in MPC. Click OK, OK. Click on File -> Save As, and using Direct Stream Copy, save a new, hopefully corrected, avi file.
    Hey GUNS I had this same problem and happen to be looking for a solution as your suggestions and instructions are always helpful. It fixed my problem just the same, THANKS(of course I did this in avi format prior to converting to dvd format)
    Quote Quote  
  26. Member
    Join Date
    Feb 2007
    Location
    United States
    Search Comp PM
    i am having a slight problem when i have a movie in avi format and i use winavi video converter to convert it to a dvd and then it burns fine. when i go to play it in any dvd player the picture is there but there is no sound coming out i need to know if anyone can help me figure out how to fix this problem?
    Quote Quote  
  27. Mod Neophyte Super Moderator redwudz's Avatar
    Join Date
    Sep 2002
    Location
    USA
    Search Comp PM
    Take the original AVI and drop it into Gspot 2.60. I would suspect a audio format WinAVI doesn't understand, probably AC3 or something other than MP3. Or it may be MP3 VBR audio. Either way, WinAVI is not a good solution. Try ConvertXToDVD if you really must use a one click solution.

    Or drop the file into VirtualDub Mod and extract the audio as a WAV file with full audio processing and then convert it into a usable format. ffmpeggui will convert the WAV to AC3, or you can put it back into VDM and using the Lame MP3 codec, convert the audio to MP3 CBR audio, which most one clicks can understand.

    But ConvertX would be easier.
    Quote Quote  
  28. Member
    Join Date
    Feb 2007
    Location
    United States
    Search Comp PM
    I have used Convertxtodvd i uninstalled it, it did the very same thing that the winavi did it would play the video just fine but there was still no sound. So what other opitions do i have with doing this and i was using the latest version of convertxtodvd too.
    Quote Quote  
  29. Member Soopafresh's Avatar
    Join Date
    Jan 2004
    Location
    United States
    Search Comp PM
    Try the simple script in this post:

    https://forum.videohelp.com/viewtopic.php?t=321684
    Quote Quote  
  30. Member
    Join Date
    Feb 2007
    Location
    United States
    Search Comp PM
    I am having a similar problem, and I thought I might as well include it in this thread which is too similar to constitute me to begin a new one. I am using XP, and am trying to convert a short AVI file to SVCD using WinAVI. The video is converted perfectly. The only problem is that through the entire video, a horrid, high-pitched screeching noise plays. The audio is great on the inital AVI file, and has no sync problems. I do not know if it is some sort of sync problem, or what I am supposed to do from this point. I am generally new to these kinds of things, and any help would be appreciated.
    Quote Quote  



Similar Threads