Divx with ac3 to DVD...how to get AC3 on dvd??

[danman78]

I have Divx and Xvid files with AC3 encoded. Which does no good really everyone has trouble extracting and converting the audio anyway...I can do that just fine to make (s)vcd's. But what is the advantage can you get this into an mpeg2 on a dvd so that the 6chanels work proplerly on a dvd player?? I watch the divx files and xvid files running on my pc that is connected to a digital decoder and it pickes up only prologic...any way to get my soundblaster live digital out to realize there is a 5.1 signal. My main question however is how do i get AC3 strait over to a dvd instead of converting to mpeg audio before creating a dvd??

[bugster]

Extract the audio from the avi using virtualdub, audio->direct tream copy, save wav.

rename the reulting movie.wav file to movie.ac3
get ac3fix.exe and run it on your movie.ac3 file to produce movie_fixed.ac3

Now encode your avi to DVD compliant mpeg-2 VIDEO ONLY (use Tmpgenc or CCE). You should end up with a move.m2v file.

Now author with Spruce up. Ensure your m2v file and ac3 file have the same filenames and are in the same dir. Import the video and spruce will import the audio automatically.

I believe Ulead DVD WS 1.3 will also accept ac3 audio if it is multiplexed with the video.

Hope this helps

[danman78]

What is ac3fix.exe doing to the file... converting it to wave???

When i put the fixed ac3 onto the dvd am I getting 5.1 sound or is it just going to be stereo??

thanks for the help so far man!!

[bugster]

What is ac3fix.exe doing to the file... converting it to wave???

When i put the fixed ac3 onto the dvd am I getting 5.1 sound or is it just going to be stereo??

thanks for the help so far man!!

When you save out the ac3 file with virtualdub it thinks it is saving a wav file and so appens a wav header which is different from that required by an AC3 file. ac3fix.exe simply corrects this and makes it into a correct ac3 file. It also fixes any errors that may be present in the file tho usually it only reports one error which I believe to be the header. You will still get 5.1 sound.

[danman78]

I am having issues with spruce up..... how can be sure that i have the full version...i downloaded it and have registered it .... but i think that it is not a full blown version....spruce up is no longer sold> right? where can i get it??

[danman78]

one more thing.....i did what you said...but it is not taking the ac3....spruce up is just assuming that there is audio in the mv2 file.... but i used tmpeg to encode/convert the video with no audio. ???
OH if i want to multiplex the audio back into the file after it is fixed what do i use????

[bugster]

First off, I can't help you with getting Spruce Up. You are right it is no longer sold but is is still copyright material so discussing ways of obtaining a copy is not allowed under this boards rules as it would be considered warez.

Secondly, with regrads to importing the video/audio into spruce. Make sure that when you encoded with TmpGenc you actually selected the video only button. If you simply provided no audio in the audio source selector TmpGenc would have encoded with silent audio. This may explain why Spruce thinks you have audio mulktiplexed with your video. If this is this case it can be corrected by using TmpGencs MPEG tools demultiplex option. Simply save out the video stream to another file. Once you have done this the spruce should import the video and then the audio automatically as described before.

Oh, BTW, I believe that when using the Spruce trial it does not play AC3 audio in preview mode but will still create a titel set correctly with it. Bit of a pain I know but there is only one thing you can do about it and I discussed that above!

ULEAD DVD WOrkshop 1.3 will accept AC3 audio when multiplexed with the video stream. I believe there is a trial versio available if you want to try it, tho I can't say if the trial is fully featured in this respect.

[Hertog_Martin]

I thought tmpgenc could handle ac3 also??

[bugster]

I thought tmpgenc could handle ac3 also??

AFAIK, no, it does not handle AC3, certainly not correctly when used as an input source to your encode. Not sure what you will end up with if you try this but it certainly won't be an mpeg with AC3 audio. If you want 6 channels on a DVD you must preserve the original AC3 audio and let spruce multiplex it with the video as I described or do it after encoding the video by multiplexing the .m2v and .ac3 with Tmpgenc mpeg tools.

[Hertog_Martin]

I used a crack to make mine spruceup full version but cant seem to open or import a .ac3 file.. or do i have to complete my m2v file first, throw both in same folder and then open the m2v so that SpruceUp opens the ac3 file with it?

[danman78]

i got a legal copy of spruce up on ebay.....cool hu?


Anyway you got it, that was the issue i was having...i took the time to convert those files.....First I tried to use graphedit to remove the audio...that did not work....on top of that after exiting graphedit i chose "dont save changes" and it deleted my file completly....did not put it in the recycle bin....jut deleted it.....crappy hu?? anyway that was just a side note. I re-converted the files....and demuxed the audio out.....Where is the video only button?? demuxing is fine though...

The files with ac3 are going in to spruceup just fine now. Thanx!!!

dan

[Hertog_Martin]

yes thnx for the guide bugster. Just made my first DVD

nice sweet 5.1 sound and made some nice menus with it

[danman78]

Ya... Thanks for the POST!! My dvd turned out perfect.......

I have a new one for you tho...

Whenever I have a Video without AC3... and this is something I was trying to figure out by making a dvd wth AC3...instead of Mp3 compressed sound..

Here is my problem. My DVD player sucks, I think that is the root problem...but.... Whenever I play a dvd or vcd or svcd or any of the other various standards, it will read the disk and try. The video 99% of the time is Perfect. However the audio is choppy, Skips off sync. All of thease disks have been tested on a PC software dvd player, and on a couple of dvd players and work fine... (with the dvd players it varies) So I know that I am making the disks ok....

My question: Is there another common way to compress the audio that is compatable with my dvd player... (AC3, which i now know works fine) Can i convert a file with Mpg3 sound to a two channel AC3 file (I know how to do this) I can do this for sure with a standard DVD disc. I have not tried it yet but I am sure it works fine! Mainly I am looking to fit more video time on a DVD, Making a VCD-DVD I have dont this before, Or a SVCD-DVD this I have also done. But I was under the impression that these files had to have MP3 sound or wav or something.

Can I insert AC3 sound onto a SVCD-DVD, not to acheave 5.1 sound, But so that the stream is AC3 and NOT MP3????

And if so How. Same a dvd encoded file...?? Will Spruce Take a Mpeg2 file encoded at 1200K and then let me use the ac3 file named the same??



Dan

[bugster]

Can I insert AC3 sound onto a SVCD-DVD, not to acheave 5.1 sound, But so that the stream is AC3 and NOT MP3????

Dan

I cant say I have ever tried this but as you are producing a DVD-video (albeit with non-standard video resolution) I don't see why it wouldn't work. It is certainly not possible to produce a working SVCD on a CDR with Ac3 audio (well, I doubt there are many players that would handle it, though a few might) but when authored as DVD-video on a DVD-r it seems like it ought to work. Try it and see what happens.

BTW, if you dont want to use full D1 resolution (720 * 480/576) and are using SVCD resolution and bitrates to get more video on one DVD-r, have you considered CVD resolution. This is 352*480/576 and is DVD compliant so giving greater compatibility than the SVCD resolution you are using, looks just as good too.