Joining AC3 streams

[mattbag]

Hi all!
As I use DVDauthoring IFOedit functionality, I need to have ONE big M2V file and ONE big AC3 file...

To merge some M2V files into one, I use the dos command :
COPY /B "X1.M2V"+"X2.M2V"+...+"Xn.M2V" "RESULT.M2V" --> OK, no pb

But what about AC3 files? It seems that I can't use this DOS command again because of the AC3 headers in files, So does anybody know how can I definetly merge AC3 files into one?

In Standard DVD, I obtain directly one 1C3 because, there is only one PGC but know I'm working on a DVD movie which contains several PCGs...

Thanks a lot guys!
Mattbag

:cool:

[alexnoe]

If you care about headers, then you must not use this method for any kind of MPEG video file either!
What you create is a file with broken timestamps.

[vxvas]

Read the audio FAQ

[Th3-S4int]

Hi,
I want to merge 2 AC3 streams, but i dont know how.I maked a Join.lst with the following content:
C:\Programme\Ripping\DVD Decrypter\VIDEO_TS 2\VTS_01_1 - 0x81 - Audio - AC3 - 6ch - 48kHz - DRC - Deutsch - DELAY -80ms 2.AC3
C:\Programme\Ripping\DVD Decrypter\VIDEO_TS 2\VTS_01_1 - 0x81 - Audio - AC3 - 6ch - 48kHz - DRC - Deutsch - DELAY -80ms.AC3

And then i maked connection (i dont know the right word in german it is in windows "Verknüpfung", but i think another word is icon)
with the following content:
C:\Programme\Ripping\BeSweet\BeSweet.exe -core( -input join.lst -output stream.ac3 -payload )

But when i start it, it doesn´t work. The Output file is a 0 byte File!
Can someone help me and tell me how to merge two ac3 files?
p.s. Vobinput.dll is in the besweet directory.
p.s.2 Iam german and my english is not the best, i hope everybody understand what i mean!

[brute]

You can try a little tool named filemerger http://fysx.acwu.com/Programs/Download/FileMerger-01-07-14.zip

or an alternative that has the same name ;) http://home.planet.nl/~doesw008/files/filemerger-v2.2-redist.zip

don't know which is better, cause both seem to be very equal .

Drag and drop the files you need to merge and press merge or Go!. The output is good, you almost don't notice it.

Und nochma auf deutsch ;)

Nimm eines der Tools, das zweite hab ich eben nebenbei gefunden, beide sind irgendwie ziemlich ähnlich. Einfach reinschieben die teilen und dann mergen. Das ergebnis ist ganz gut, also man merkt fast nichts. Kannst damit eigentlich fast alles zusammenfügen.


(Verknüpfung = Link *g*)

[Th3-S4int]

Many thanks to you. The second tool works well.(i didnt test the first,because on the site he write that only mpeg can be merged)

[brute]

I merged AC3 and AVI files successfully with it, bit if the second works well, it's okk, too :)

[Th3-S4int]

i have found a problem: when you merge 2 ogg sound files vdubmod cant put the new file in a ogm file (he only put the first part of the old file in). now i test if ac3 work better. i think the problem is the header!

[m1a2lt]

Try using HeadAC3he and it will repost the header for the .ac3 files. Used to have the same problem with filemerger until I started using it.

[bond]

you can also try good old dos commandline:

copy /b "c:\input1.ac3"+"c:\input2.ac3" "c:\output.ac3"it works, but dunno if there are header issues!?

[Th3-S4int]

when i merge ac3 and then encode it to ogg vorbis with besweet i have no problems!but i read somewhere that ogg vorbis has a more complex header like mp3 and that why i think that file merger cant merge ogg 100% right

[dvd_master]

None of the FAQs help, since I SUCK at command lines. Is there an interface or program with a gui that can just merge the two files togather?

I experimented (badly) with BeSweet with no such luck. Or if anyone can tell me the exact lines I would use to join these two files...

prt1ENG.ac3 and
prt2ENG.ac3

They're both in the root of my drive "F". Anyone?

[dvd_master]

ergh, I knew if I posted under another thread no one would answer, that's why I made it a new topic! Whhyyyyyy was it moved!!!!!1

[KpeX]

Try not to get aggravated, and try this:

First, open up notepad, and type the following two lines:
f:\prt1ENG.ac3
f:\prt2ENG.ac3
Then save the file as 'filename.lst' in your f drive as well. (make sure to change the file type to 'all files' when saving).

Then run besweet using the following commandline:
besweet -core ( -input "f:\filename.lst" -payload -output "f:\output.ac3" )
hth,

[dvd_master]

YOU ROCK!

[xixi2000]

Please
thx

[KpeX]

What are you asking? Your question is unclear.

[xixi2000]

use BeSweet
BeSweet.exe -core( -input 1.ac3 2.ac3 -output stream.ac3 -payload )
but output stream.ac3=1.ac3
why?

[KpeX]

See this http://forum.doom9.org/showthread.php?s=&postid=391976#post391976

and Q 7 here (http://forum.doom9.org/showthread.php?s=&postid=84940#post84940)

Hope this helps,

[xixi2000]

e:\BeSweetv1.5b23\besweet.exe -core ( -input "e:\filename.lst" -payload -output "e:\output.ac3" )

e:\BeSweetv1.4\besweet.exe -core ( -input "e:\filename.lst" -payload -output "e:\output.ac3" )

Do not works:(

[KpeX]

Post your listfile and logfile. Did you read the thread I linked to completely? There are other options for joining AC3.

[xixi2000]

help me

e:\1.ac3
e:\2.ac3

save as join.lst(e:\join.lst)

run:
e:\BeSweetv1.4\besweet.exe -core( -input e:\join.lst -output stream.ac3 -payload )

do not work:(

thx KpeX!!!

[xixi2000]

use BeSweetv1.4 or BeSweetv1.5b23

run
e:\BeSweetv1.4\besweet.exe -core( -input e:\join.lst -output stream.ac3 -payload )

join.lst:
e:\1.ac3
e:\2.ac3

I cann't get the thing to go as I expect.Any suggestion?

[KpeX]

:logfile: Please post your logfile, or explain more why the conversion does not work. Also please try copy /b 1.ac3+2.ac3 final.ac3 from command line.

[Red]

Yep, I have also tried to use BeSweet inputting the suggested Command Line code and getting nothing but cryptic DOS answers,... like "not correct path" etc

Just can't get BeSweet to join ac3 and it is VERY frustrating. The GUI that goes with it, is of not much help either, as it won't let you save the output as an ac3 file if the input is a .lst file,.. it will only allow .lst file output.

Any thoughts,.. has anyone actually joined ac3s with this program?

Regards
Red

[Red]

Obviously not!

[Tuning]

Has anyone tried BeSplit, then try it once.<http://dspguru.doom9.org>

besplit -core( -input "input.lst" -prefix "ouputprefix" -type ac3 join )
*.lst as above mentioned.
Use notepad and create a lst file.
Outputprefix is what is the file name with out extension ac3.

Hope that helps.....

[ekenet]

Can someone please tell me why besweet doesn't encode more than just a few seconds? My output file get 380kb and no more, while the cmd keeps taking cpu. I'm doing just as Kpex said: besweet -core ( -input "f:\filename.lst" -payload -output "f:\output.ac3" )
I have three small files witch I'm trying to merge: 383kb, 259kb and 1,97mb large.

[KpeX]

Try joining the streams with BeSplit, with the command line that Tuning posted.

[ekenet]

Thanks. Seems I'm on the track. But just as Th3-S4int got, the file ended up beeing 0 byte. I don't think anyone answered to his problem or it might be me who missed it because of lazyness ;)

[DSPguru]

-join

[ekenet]

Thanks, I didn't see the missing "-".

[Bluedan]

Is the delay in 2nd part just dropped here with the besplit method?
It would be OK if both parts have the same delay. So I can take the delay into account when transcoding with besweet and it'll be totally synch until the end.
But it's a problem if it differs...
I don't really see how I should manipulate the second part with besplit, so that it starts without delay.
I don't get it. what the fix function really does in besplit. I only found out that it shortened a 6CH AC3 by several hundred MB while reporting many synch issues!!