replace an mpeg with 5.1 sound and burn as dvd

[eladhh]

hello all !

this is my first time asking a question here ... so be gentle ... lol

my question is this - i have created a wav file in 5.1 surround sound , when i burn it on a cd all is great and i can listen to it ( both Dolby Digital and DTS ... ) i use both surcode and soft encode so i'm covered on creating what i want .
the tricky part is to replace the mpeg sound with the new 5.1 sound , and then burn it as a standrd DVD .
i have been giving it so much time and tried all i could get my hands on with no result ...

does anyone have any clue how to do this ?
i've searched this site and came with the conclusion that either it's not possible with home equipment , or i don't know how to look for answears , or no one wants to do this and i ask for too much ...

so if anyone have a clue - please share !!!

thanks in advance ...
E

p.s. it's amazing this site - thank u all for taking a part in it and god bless

[greymalkin]

theres a few gaps we'll need to get filled in before we can answer your question. When you say

"i have created a wav file in 5.1 surround sound , when i burn it on a cd all is great and i can listen to it ( both Dolby Digital and DTS ... )"

Can I assume that you have made 6 mono .wav files, then compressed them to both an AC3 5.1 file and a DTS 5.1 file?

So this gives you the original MPEG file(video and original audio) plus the 2 encoded surround sound files.

Now are you wanting to just join one or the other Surround Sound tracks to the video file or are you wanting both on the DVD with the option to pick which sound track you want?

Both are possible with DVD authoring software, the first option is just easiest. But I'm going off assumptions now. Please explain your process (how you created the files, what files you ended up with..etc).

thanks

[eladhh]

i have created 6 mono files and have both the dts and the DD , but don't really care witch one will be on the dvd ... one or the other ... i don't need both as multi-language ... prefer the DD for now because i think it'll work better for what i need it for ...

[eladhh]

sorry i was not so clear ... i compressed the 6 mono files to DD wav file and again the 6 mono files to DTS with surcode

so your assumptions were right on target ...

[greymalkin]

Excellent..well if you compress the DD 5.1 file you should end up with a single AC3 file. All you have to do then is load up your DVD Authoring program and tell it you want to use the MPEG file in the DVD. Once you import the MPEG video into the Authoring project you can edit the properties of the mpeg file. Somewhere in the options you will be able to change the audio track from the original audio included in the video to the AC3 file you created. This will replace the existing audio with the AC3 file you created. What DVD Authoring software are you using? Or are you asking what authoring software should be used? T

[eladhh]

i tried that in Ulead DVD MovieFactory, Adobe Encore DVD , nero and some other that i can't remmember ... none of them was willing to import the file as the new sound ...
maybe i'm going at it the wrong way ...
what properties of the sound do i need to set for the surround file ?
maybe because i use it as 640 kbs ?
i was under the impression that if i can play it as a cd i just need to replace the sound of the mpeg and that's it ... but all i get is the noise of the surround file and not the actual 6ch that was encoded into it ... so maybe i need to change the settings ?
or , if you can ( i know it's lots to ask ... ) tell me the softwear to use and the settings for the sound file ...
i will try to take it from there ...
or maybe steps in short ...

thank you ever so much for helping ... finaly i'll be able to do something i'm thinking of in the past year or so ...

[Abond]

Did the programmes output some errors? I might be wrong, but IIRC for cd you need 44.1 Khz. The other thing is that probably DD and DTS files have a wav header - I think you need to strip it. And the last - I don't know if 640 kbps ac3 is allowed in DVD.

[Cornucopia]

Couple of problems here...

You cannot use either one of the files you produced (as is). Both are meant for a "Surround CD"-type format, meaning both are at 44.1kHz sample rate and both are not standard, straight AC3/DTS streams. Instead, they are those streams whose native bitrate (640? did you say--that's not so common) have been padded/interleaved with digital silence so as to fill out the standard 2352byte/sector, 75sectors/second AudioCD rate and then headered/wrapped for WAVE compatibility.

--You'd be able to tell the difference by the filesize: If you had a 3 minute program, with a true 640kbps AC3 file, it would be 14.0625MB. With an AudioCD compatible (AC3-WAVE) file it would be 30.281MB. I'll let you do the math on yours to verify.

You'll have to start over again with the 6 mono WAV files (presumeably with SR at 44.1kHz) and SampleRate Convert to 48kHz.

Then, you'll have to re-encode to a standard DolbyDigital(AC3) stream. My recommended setting for this is: 5.1, Intel byte order NOT checked, 448kbps, DolbySurround downmix flag CHECKED, default DialNorm etc.

Once the program has been re-encoded to a true *.AC3, you should be able to proceed with the suggestion given earlier in this thread. Make sure your DVD authoring app can accept AC3 files, though.

Scott

[eladhh]

works perfectly !!!

i saved all the 6 mono file with those settings
48 khz . 448 kps
and replaced the original sound with the new ac3 file ( i used Adobe Encore DVD ) and finaly i can say i did it ...

but not without your help friends
thanks again for all the help
keep on making people happy !
you made me happy ...
E


thank you all