ilegal Dolby Digital (AC-3) stream from D2S

[jorel]

i'm using D2S to get 2 movies in one DVD.the result is always great and i did lots but only in the last i did problems. using TmpgencDVDAuthor,i load the 2 movies in 2 tracks and when the prog try to create the output folder loading the second AC3,the program stop and give an advice that the audio is corrupt: "ilegal Dolby Digital (AC-3) stream." :confused:
then i extract the audio again in D2S but got the same problem, this is the log from besweet:

BeSweet v1.5b26 by DSPguru.
--------------------------
Using azid.dll v1.9 (b922) by Midas (midas@egon.gyaloglo.hu).
Using AC3enc.dll v1.20 (Feb 18 2004) by Fabrice Bellard (http://ffmpeg.org).

Logging start : 06/04/04 , 16:18:23.

C:\DVD2SVCD2\BeSweet\BeSweet.exe -core( -input D:\DVD2DVD\Extracted_audio_1.ac3 -output D:\DVD2DVD\Encoded_audio_1.ac3 -payload -logfile D:\DVD2DVD\Encoded_audio_1.log )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : D:\DVD2DVD\Extracted_audio_1.ac3
[00:00:00:000] | Output: D:\DVD2DVD\Encoded_audio_1.ac3
[00:00:00:000] +------- AC3ENC ------
[00:00:00:000] | Bitrate method : CBR
[00:00:00:000] | AC3 bitrate : 384
[00:00:00:000] | Channels Mode : 5.1
[00:00:00:000] | Error Protection: Yes
[00:00:00:000] +---------------------
[ 246133728] Conversion Completed !
[00:00:27:000] <-- Transcoding Duration

Logging ends : 06/04/04 , 16:18:50.


don't know what's wrong and as a wrote,this is the first time that i have this problems,all others encodes are perfect and with good quality in audio/video using 2 movies to one dvd!
thanks in advance!
:)

[bobwillis]

Hi jorel,

When I have had problems with 'suspect' ac3 streams, I have successfully used ac3fix to correct them: http://www.videohelp.com/tools?tool=91

I not saying it works in every case, but it has with me.

Regards,
Bob

[jsoto]

Besweet is called in -payload mode (no encoding, only correcting delay), but delay seems to be 0 msec. IIRC, this is a known "not optimum behavior" (IMO, not really a bug) of D2S
However, seems Besweet does something wrong in this case ...

If the delay is really 0 msec, simply use Extracted_audio_1.ac3 instead of Encoded_audio_1.ac3. The file should be identical

Alo, just to see what is happening, try fixing the audio track Encoded_audio_1.ac3 with a tool like BeSliced (http://www.doom9.org/Soft21/Audio/BeSlicedv0.2.zip) or delaycut (http://forum.doom9.org/showthread.php?s=&threadid=71545&highlight=delaycut).


jsoto

[jorel]

thank you but it's command line and i don't know how to use.:o don't have a "gui" ?

[jorel]

Originally posted by jsoto
Besweet is called in -payload mode (no encoding, only correcting delay), but delay seems to be 0 msec. IIRC, this is a known "not optimum behavior" (IMO, not really a bug) of D2S
However, seems Besweet does something wrong in this case ...

If the delay is really 0 msec, simply use Extracted_audio_1.ac3 instead of Encoded_audio_1.ac3. The file should be identical

Alo, just to see what is happening, try fixing the audio track Encoded_audio_1.ac3 with a tool like BeSliced (http://www.doom9.org/Soft21/Audio/BeSlicedv0.2.zip) or delaycut (http://forum.doom9.org/showthread.php?s=&threadid=71545&highlight=delaycut).


jsoto
oh thanks! :) my last post was asking about ac3fix..i'm downloading BeSiled!

[bobwillis]

Hi Jorel,

Regarding the use of ac3fix, it's simple:

1. Copy the audio track to be fixed to the same directory as ac3fix.
2. At the command prompt, change directory to where ac3fix is.
3. type the following and press return:

ac3fix.exe filename_to_be_fixed.ac3 new_file_name.ac3

where filename_to_be_fixed is the name of your file; and new_file_name is the resultant fixed file.
4. After it has finished, the new file will be present in the ac3fix directory.

Regards,
Bob

P.S.: I don't know anything about bespliced, but I do know that jsoto is experienced in these matters, so perhaps give that a go first.

[jorel]

@ bobwillis
thank you, now i know how to use ac3fix! ;)

@ jsoto
delaycut is amazing, very easy to use and solve the problem faster, great tool!
thank you very much! :) :D

[jorel]

details and corrections: i was ripped the main movie with dvddecrypter 3220 before run D2S, then to remove all douts, i re start the job and using "internal routines" in D2s don't give me any problem with audio or anything else....everything is perfect, D2S still a champ in my taste!
:)

[jsoto]

D2S still a champ Agree.

Just to add some comments
BeSliced ( written by DSPGuru, BeSweet author) is able to fix many formats, like mp2, not only ac3. also very easy to use. Simply drag and drop the file in the GUI (DSPGuru's avatar). I think it does not support dts, but may be the new releases...

delaycut, is able to cut & fix delay on dts or ac3 tracks

jsoto