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Huge Problem with Audio in Dvd-Lab Pro
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Junior Member
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17. July 2005 @ 10:35 |
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This problem i am having has been very annoying. I have authored a dvd with 2 episodes and burning them after being authored. The first episode's audio is always faster than the video usually by about 1 second. The second video works fine with no problems. I have burned two dvd's and both of them have the same problem with the first video. I am not doing anything different between the two videos. I would like to know if there is a solution for this problem and has anyone encountered the same problem as i am having.
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AfterDawn Addict
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18. July 2005 @ 09:25 |
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What are the source files?
How are you getting the audio into DVDLab?
What format is the source audio, what format are you transcoding to?
What transcoding tool are you using?
How are the movies joined, or are they?
Black holes are where God divided by zero...
Cheers, Jim
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Junior Member
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18. July 2005 @ 12:07 |
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Here are the answers in your order:
1) my source files are a .avi
2) im getting the audio file into dvd-lab by importing, it is a .wav file, then i convert it to .AC3 using the prgm ffmpeggui
3) answer in number 2
4) I am using Canonpus procoder 2, and with that prgm they break the video up into 2 files. I chose to convert my .AVI to an mpeg2 and the prgm also creates a .wav with that.
5) movies are not joined
Just wondering, does my problem have to do with VBR(Variable bitrate Control), CQ(Constant Quality), and CBR(Constant bitrate Control)?
If not, then is there a recommendation on which i should use when converting my videos to mpeg2. oh yea, i am also compressing the file with dvd-lab, and that makes the mpeg2 to mpeg. But i dont think that compressing the file deals with my problem.
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AfterDawn Addict
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18. July 2005 @ 12:55 |
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I would suggest you extract the .wav from the .AVI in VirtualDub, then transcode in ffmpeggui.
I would then encode the video using a bitrate so it fits, instead of having dvdlab compress it. Use a bitrate calculator.
If you don't wish to do that, then compile the full DVD in dvdlab, and use dvdshrink to make it fit. I still don't trust dvdlab's re-encoder.
The problem is usually the type of audio in the source, and if it's desynced during encoding in Canopus, then don't use Canopus to do audio. VBR MP3 source audio is a notorious problem with all encoders.
Black holes are where God divided by zero...
Cheers, Jim
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Bawjawz
Suspended permanently
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18. July 2005 @ 13:45 |
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Confucious say:
To get a proper DVD with DVD Lab Pro minus the headache, create single files prior to messing around with DVD Lab Pro. Have done this with Nero, by using EXPORT function properly. Result is a single MPG with picture and sound.
No sound sync problems this way as sound and pic are decoded/encoded at same rate.
Commodore C64
38,584 Kb RAM
Tape Drive
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Junior Member
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18. July 2005 @ 17:50 |
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Thanks for the advice, i will try your methods and ill get back to you if they come out fine. Now i need to get most of those programs you guys listed.
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AfterDawn Addict
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19. July 2005 @ 10:13 |
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Quote:
To get a proper DVD with DVD Lab Pro minus the headache, create single files prior to messing around with DVD Lab Pro.
This is not what I would recommend at all.
DVDLab's demuxer isn't the best, and importing elementary streams, that are properly prepared, usually gives better results.
This all depends on how the sources are encoded, and if Nero is your encoder of choice (gawd knows why though), then this may work better for you. It is definitely not always the case.
Black holes are where God divided by zero...
Cheers, Jim
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Junior Member
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20. July 2005 @ 09:07 |
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Before i started dl'n all those prgms that rebootjim recommended, i gave canopus procoder one more shot. Instead of doing VBR, i tried CBR. It worked fine after that. And now im going to try CQ, i really dont want to learn a new program because ive been trying to learn all the aspects of dvd lab and in alot of the threads, pple say that Canopus is one of the best converters. So im going to stick with this program for now. When i get really comfortable with creating dvd's, encoding and all, i'll give the other prgms a shot. But once again thanks.
By the way rebootjim, i have no idea on how to use a bitrate calculator, and i tried to extract the .wav from the .AVI in VirtualDub, but i didnt know what i was doing....
the only thing i've used VirtualDub for is starting a frameserver for hardsubbing.
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AfterDawn Addict
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20. July 2005 @ 09:56 |
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Open the AVI, select audio, full processing, the File, Save .wav
The bitrate calculator...
You enter the running time of the video, and it tells you the maximum bitrate you can use for the video, and have it all fit on one disk.
http://www.videohelp.com/calc
Black holes are where God divided by zero...
Cheers, Jim
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octopi
Newbie
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20. July 2005 @ 16:16 |
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I have to say that I have also found DVD-LAB's transcoding to be somewhat suspect. There can be no doubt that in terms of workflow, to create files at the time of rendering that are native to the compilation programme reduces the chance of errors like audio/video syncing. I'm no expert but I can vouch for "less transcoding" wherever possible.
PS: I have begun using Adobe Encore and have been quite impressed. Been using DVD-Lab Pro for about 5 months and took the plunge on a whim to learn a new app. Pleased so far. Just compiled a 14 short-film DVD and am quite impressed with the detailed approach of Encore.
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