audio is out of sync after 5 minutes or so using AVItoDVD

[ronedog]

I just downloaded the newest AVItoDVD and am trying to get the video to sync up with the audio. it starts out in sync, then after about 5 minutes or so I notice it going out of sync by about a half second...then around 20 minutes it is about 1 to 2 seconds delay...then down to the 5th .mov file its out of sync by about 4 or 5 seconds.

I don't know all the technical stuff...I'm a newbie making some home videos for my kids. but I'm a programmer and don't mind learning new things and fixing things, I just don't know whats the issue and where I ought to start. I've been reading through the forums here and googling for a couple of days and I've found some good ideas but when I try to implement them I get the same result, or I find the solutions are disabled for me and I can't try them out. I also downloaded ConvertXtoDVD from here and tried it there...I got the same delay problems...so I thought maybe the source files are a problem...but after checking the source files are all in sync exactly how it should be...I uploaded these videos to youtube and the .m4v file is in sync without any delays. But I wanted to make a DVD and use the original .mov file because the .m4v files are a bit grainy and I wanted better quality for the final dvd.

Here are some of the specs, any help will be appreciated.

Windows 8
Source files are .mov created from canon digital slr. I have 6 total .mov files ranging from 17min to 25 minutes in length created in quicktime that make up this DVD. I outputed the file to .iso and I watched it in VLC before I burn to disk and this is when I notice the delay in audio.

AVStoDVD most recent version.
There are 6 titles in the DVD
Output: .iso UDF
Output Size: 8100MB
DVD Size: DVD-9
DVD Menu: Motion templates, added custom background
NTSC
Video Encoding: I used both "Smart Selection" and tried it with "HCenc VBR 2-Pass"
Video AVG Bit Rate: 2500 kbs
Video Higher AVG Bit Rate: 8500kbs
Audio Format: AC3
Audio Bit Rate: 192kbps
AC3 Audio Encoder: I tried "FFmpeg (Safe Mode)" and "Wavi+Aften"
Auto Adjust Delay: I tried both unchecking and checking, but did not sync audio

I read in another post that I could adjust the delay of the audio using AVISynth by "Editing the Title" in AVItoDVD. But when I go to the tab "AviSynth" and uncheck the box called "Auto AviSynth Script" and then I click on the "Audio Button" the checkboxes for "Amplify Audio" and "Delay Audio" are disabled and I can't check those boxes. I'm assuming in the "Delay Audio" checkbox is where I would be able to modify the delay and fix the problem, but with it being disabled I can't do anything. So I've come to this forum, hoping to figure this out.

Thanks for any help you can give!

[manono]

I'm assuming in the "Delay Audio" checkbox is where I would be able to modify the delay and fix the problem, but with it being disabled I can't do anything.

No, it won't help you. The DelayAudio command will apply the same delay throughout the entire thing and your delays increase as the videos go along. If the delay changes as each title begins, then you can edit the AvsToDVD script to add a new delay for each title (I think).

Is the delay changing where one video ends and the next begins? Or is it independent of the title borders?

And are the source MOV files Variable Frame Rate? If you don't know have a look at the text readout from MediaInfo, and post the information here.

You mean AvsToDVD and not AVIToDVD, don't you? If so, you can also post in the dedicated AvsToDVD support thread.

[sambat]

If you take one video only and convert it to DVD using AVSToDVD, is it out of sync?

[redwudz]

Sync issues are usually of three types.

The first is where the sync error stays the same the length of the video. That can be caused when the start times of the audio or video are different.
The fix is to 'offset' usually the audio start times. Easy to fix.

The second type is where the sync error gradually gets worse during the length of the video. That is usually caused when the audio and video are different lengths.
You can often check this by using Mediainfo on the finished video and checking the audio/video times. This can sometimes be fixed by stretching or shrinking the video or audio. Not so easy.

A third type is a combination or both problems or a combination of files with some of them with sync problems. Hard to fix. Best to fix the individual sync problems before combining.


And welcome to our forums.

[ronedog]

Thanks for the replies...here are some answers to the questions.

Yes, sorry I meant AVStoDVD.



MediaInfo OutPut:

General
Complete name : E:\Pictures & Video\DVD's Made\Football\DH (6) vs. Snow Canyon (33).mov
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt
File size : 5.63 GiB
Duration : 17mn 46s
Overall bit rate : 45.3 Mbps
Encoded date : UTC 2015-08-31 18:44:14
Tagged date : UTC 2015-08-31 18:50:42
Writing library : Apple QuickTime 7.7.8
com.apple.quicktime.make : Canon
com.apple.quicktime.model : Canon EOS REBEL T4i
com.apple.quicktime.player.movie.audio.m : (Binary)

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L4.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=15
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 17mn 46s
Bit rate : 43.8 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.793
Stream size : 5.44 GiB (97%)
Language : English
Encoded date : UTC 2015-08-29 11:29:08
Tagged date : UTC 2015-08-31 18:50:42
Color range : Full
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : sowt
Duration : 17mn 46s
Source duration : 17mn 45s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 195 MiB (3%)
Source stream size : 195 MiB (3%)
Language : English
Encoded date : UTC 2015-08-29 11:29:08
Tagged date : UTC 2015-08-31 18:50:42



I haven't tried doing just one video...I'll try that next and see what happens...if you see anything in the MediaInfo output that could help let me know. thanks.

[ronedog]

ok, I'm trying just one video and while that is going I've been looking at some of the mediainfo and thinking....The "Duration" of the video and audio match. However, the "Source Duration" of the audio is 1 second less. As I mentioned before I have 6 total .mov files that I'm putting together. After checking a few other .mov files using MediaInfo I see that the "Duration" times match up, but again the "Source Duration" time on the audio is off...in one file it says the audio is shorter by 6 seconds.

I went and watched the original .iso file in VLC and my original post was wrong...there is not a "Delay" in the audio...instead of the audio being delayed, its being played too soon as time goes on.

So after looking at the "Source Duration" setting I'm wondering if this is the problem....because I'm combining all the 6 .mov files to make one DVD and if all of them have shorter AUDIO "source Duration" times, then is this what the problem is? If so, how do I fix this using AVStoDVD...is there a setting in there that will allow me to change this?

THanks.

[manono]

there is not a "Delay" in the audio...instead of the audio being delayed, its being played too soon as time goes on.

It's still called a delay. Delays can be negative or positive. And yes, your problems almost certainly stem from the audio and video being of different lengths.

...then is this what the problem is?

That's why I asked in my initial response if the delay was changing when one video ended and the next began, and why sambat asked you about individual videos being out of synch if encoded separately.

You seem to be joining the videos together into a single DVD title(?). If so, and you don't want to fix the delays individually, make them all separate titles that play consecutively.

[ronedog]

Great, I'm getting somewhere...thanks. I don't mind fixing the individual videos if its not too time consuming or difficult...but if you more experienced guys say to stay away from it because I'm a newbie I'll listen.

I do have them as separate Titles in AVStoDVD. If I set them to play consecutively, can I still have the DVD menus to allow them to be clicked on separately? The reason for the menus is they are 6 different football games and parents want to click on each game, watch it, then go to another game and click on that one.

[ronedog]

ok, the 1 video just finished, and the audio has a negative delay as well, its playing audio too early....just to update the thread...so what's the best way to fix this?

[manono]

They are already separate titles? Then my theory is wrong. I'd next try what sambat suggested - make little DVDs from each video and see if they're in synch. AvsToDVD has the ability to take a bunch of little DVDs and join them together into a larger one without reencoding, and to also allow you to make one of its simple menus.

[ronedog]

I made a little DVD from one of the .mov files and that is out of sync. I made it with the video that I found had a 5 second negative delay...and when I did this using AVStoDVD it still had a delay for the audio. Here is what is odd. When I watch the source .mov file in QuickTime the audio and video are all in sync, so the original source file appears to be good. When I put that .mov file into MediaInfo it shows the "Source Duration" as being 5 seconds delay. This doesn't make sense to me, but QuickTime plays it perfectly and AVStoDVD renders it with the 5 second delay. How can I adjust this delay in AVStoDVD? The audio option for "Delay Audio" is greyed out and I can't edit it?

[ronedog]

ok, I started a fresh new project and added one title and was able to edit the audio...the checkbox is no longer greyed out. I added 5000ms (5 seconds) to the video and all the audio lines up perfectly now. I'm adding the other titles now and doing the same thing for each .mov file and will let you know how it goes...thx for all the help and quick responses here!

[ronedog]

Well, looks like I misunderstood something. adding the 5 seconds fixed the sync problem towards the end of the DVD, but it created an out of sync problem at the beginning...I failed to understand what was really going on. So now it looks like my problem from the beginning was the .mov files start in sync, but some where along the file, they get out of sync. How can I figure out where this point is, and I'm assuming wherever this point is, I will need to add the 5 second delay? How do I go about finding and fixing this? Thanks.

[manono]

Do as sambat (and I) have suggested. Make a whole bunch of separate DVDs. For the ones that wind up out of synch, demux, fix the delays, and remux. The result should be several little DVDs, all in synch.

1. Demux using PGCDemux. Open the IFO for the little DVD and and save out the video and audio.
2. Fix the delays for any needing it using DelayCut. Open the audio, in the 'Delay' area fill in the amount of delay in the 'Start' box and 'Process'.
3. Remux using Muxman. Open audio and video and reauthor your little DVDs.

Test them all out when done to make sure the audios are all in synch. Do it again for any not quite fixed yet. Finish in AvsToDVD to join and create titles from the DVDs, and also the basic menu. This assumes the audio doesn't suddenly go out of synch in the middle of one of your little DVDs, but only at the beginning. If it goes out of synch in the middle, you have more serious problems, Fixable, but more serious.

[ronedog]

ok, forgive me for my ignorance...but when I'm creating the individual DVD's I"ve been creating .iso files...is this what you mean? Or should I be creating DVD's and writing them to my hard disk so it creates the Video_ts and Audo_ts files, then from those files go through steps 1-3 as you outlined?

[manono]

Don't create ISOs. You want a VIDEO_TS with IFOs, BUPs, And VOBs. Maybe make each about the same size as the corresponding one made by AvsToDVD so you'll be able to add them all together later on for the DVD-9 you'll eventually be making.

[ronedog]

Ok, I created 1 dvd and created it in the folders...when I open the VIDEO_TS folder and put one of the .ifo files to PGCDemux and try to process it I get a message saying "Select a PGC with at least one cell"?

[manono]

Ok, I created 1 dvd and created it in the folders...when I open the VIDEO_TS folder and put one of the .ifo files to PGCDemux and try to process it I get a message saying "Select a PGC with at least one cell"?

Hehe, if it's not one thing it's another, eh?

First, make sure you're opening the VTS_01_0.IFO (or whatever the number for that specific title) and also not trying to open a menu. If that's not it then open a VOB in DGIndex and File->Save Project and Demux Video. That will give you an M2V (video), whatever the audio is, and a D2V file you can toss.

[ronedog]

I could never get the .ifo to open, but the VOB and DGIndex did, so I got the audio out...but I don't understand where I need to put the delay, without a visual of where the video is and the audio together, its a really difficult task to do this, unless I'm just really missing something. So I tried something else. I have an older copy of Adobe Elements 2.0, which has a visual of the video with the audio underneath it...Just for kicks, I didn't modify anything or add any menus, I just created the DVD folders. I opened the VIDEO_TS folder in VLC player and all the audio and video line up properly as expected...I used the same source .mov file I've been using for everything so far. However, even though I did the video at the highest quality adobe provides there was a bit of grainyness to the video, but the audio was spot on. So next I tried using DVD Styler, thinking maybe AVStoDVD has a problem...but DVD Styler creates the same audio delay, but the video quality is better than Adobe.

I just don't understand...why does adobe elements line the audio up properly, but neither AVStoDVD or DVDStyler will on the same source .mov file...I get that the "Duration" info from MediaInfo shows a 5 second delay but adobe knows what to do and where to do it, just wondering if I'm setting something wrong in AVStoDVD that Adobe Elements does by default...seems like this is a basic need to have audio and video match and I must be missing some setting.

So at this point, I'm stuck...I have the audio file cut out from the help above, but cutting it and putting it back together at the place in the video that I need I'm unsure of how to do, furthermore I don't know exactly where the audio starts to separate because the beginning is spot on...but gradually as the video goes on the audio separates...What I'd really like is for AVStoDVD or DVDStyler, or any other program to be able to keep the audio accurate like Adobe does but use the same video quality I get with AVStoDVD/DVDStyler...Although, maybe I'm asking more than what these programs were designed for...am I best to stick with purchasing a more expensive tool...if so which one would you recommend? Thanks again for the help

[manono]

I just don't understand...why does adobe elements line the audio up properly, but neither AVStoDVD or DVDStyler will on the same source .mov file...

Because the delay is accounted for in the MOV file. It somehow knows how much to delay the audio. That information is lost when the audio is demuxed. But I don't use Adobe Elements so I don't know any more than that.

The way most people figure it out is by playing the video (DVD or VOB in this case) in a player in which you can adjust the delay on-the-fly. I use MPC-HC and the +/- keys adjust it in 10ms increments. Once you figure it out for each video, remove that delay using the instructions I gave for DelayCut.

Then I read this:

I don't know exactly where the audio starts to separate because the beginning is spot on...but gradually as the video goes on the audio separates.

You're saying it's not a constant delay throughout each individual video? It gets progressively worse as the video goes along? If so, then you have big problems.

I'll assume you created an NTSC DVD? The default for AvsToDVD is for a PAL DVD.