NTSC 2 PAL with AC3 out of sync...Guru's help needed

rip-in-peace · 22nd March 2003, 22:28

Ok, I give up.....

Have searched the forums for an answer to this one, all to no avail

Is it possible to get the AC3 audio from an NTSC souce to be in sync when converting to a PAL mpeg stream using dvd2svcd ?

Any advice appreciated
Cheers

markrb · 22nd March 2003, 23:24

All questions belong in basics.
Please read the stickies including the mandatory thread.

Mark

Dreamvictim · 23rd March 2003, 19:07

normally when converting from Ac3 the sound is out of sync by 200ms so first try this:- click on the BBmpeg tab then at the bottom click the BBmpeg output settings & at the bottom of this screen add 200ms to the standard setting in the audio1 tab e.g the standard setting for SVCD is 180ms so add 200ms to that gives you 380ms, normally adding this delay of 200ms works sometimes you may need to add a higher or lower delay but this comes from experience, don't forget to change the setting back to it's default setting afterwards. Also use the recover option to save re-encoding the whole movie again.

rip-in-peace · 23rd March 2003, 22:19

Cheers for that m8
Will give it a try

Dreamvictim · 23rd March 2003, 23:37

No problem, let me know if it works.

rip-in-peace · 24th March 2003, 01:05

Tried & failed

Does this shed any light on the issue ?
http://www.nvision1.com/Serv/RefLib/...k/chapter5.asp

I've tried to convert a single chapter.... audio is always way out, (i.e. audio is always behind the video) have changed audio settings, then video settings... same result...

when converting & using mpeg audio, sync is bang on... Anyone got any ideas why AC3 is such a problem ?

Cheers

heinrichderfuchs · 24th March 2003, 10:41

In another thread (I forgot which, use the search function) I found an answer when I had the same problem.
Maybe you only converted video to PAL and then took the audio from NTSC, which I did:-(...
Try to use AC3Machine and Besweet from Dspguru and convert your NTSC AC3 to PAL AC3.
I hope this helps...
Heinrich

22nd March 2003, 22:28	#1 \| Link
rip-in-peace Registered User Join Date: Oct 2002 Posts: 4	NTSC 2 PAL with AC3 out of sync...Guru's help needed Ok, I give up..... Have searched the forums for an answer to this one, all to no avail Is it possible to get the AC3 audio from an NTSC souce to be in sync when converting to a PAL mpeg stream using dvd2svcd ? Any advice appreciated Cheers

22nd March 2003, 23:24	#2 \| Link
markrb Old fart Join Date: Oct 2001 Posts: 3,589	All questions belong in basics. Please read the stickies including the mandatory thread. Mark __________________ Oh no Mr. Bill!

23rd March 2003, 19:07	#3 \| Link
Dreamvictim Registered User Join Date: Jan 2003 Posts: 10	normally when converting from Ac3 the sound is out of sync by 200ms so first try this:- click on the BBmpeg tab then at the bottom click the BBmpeg output settings & at the bottom of this screen add 200ms to the standard setting in the audio1 tab e.g the standard setting for SVCD is 180ms so add 200ms to that gives you 380ms, normally adding this delay of 200ms works sometimes you may need to add a higher or lower delay but this comes from experience, don't forget to change the setting back to it's default setting afterwards. Also use the recover option to save re-encoding the whole movie again. __________________ http://www.againsttcpa.com/images/Ag...ton160x120.gif Last edited by Dreamvictim; 23rd March 2003 at 19:09.

23rd March 2003, 23:37	#5 \| Link
Dreamvictim Registered User Join Date: Jan 2003 Posts: 10	No problem, let me know if it works. __________________ http://www.againsttcpa.com/images/Ag...ton160x120.gif

24th March 2003, 01:05	#6 \| Link
rip-in-peace Registered User Join Date: Oct 2002 Posts: 4	Tried & failed Does this shed any light on the issue ? http://www.nvision1.com/Serv/RefLib/...k/chapter5.asp I've tried to convert a single chapter.... audio is always way out, (i.e. audio is always behind the video) have changed audio settings, then video settings... same result... when converting & using mpeg audio, sync is bang on... Anyone got any ideas why AC3 is such a problem ? Cheers Last edited by rip-in-peace; 24th March 2003 at 01:20.

23rd March 2003, 22:19	#4 \| Link
rip-in-peace Registered User Join Date: Oct 2002 Posts: 4	Cheers for that m8 Will give it a try

24th March 2003, 10:41	#7 \| Link
heinrichderfuchs Registered User Join Date: Jul 2002 Posts: 3	In another thread (I forgot which, use the search function) I found an answer when I had the same problem. Maybe you only converted video to PAL and then took the audio from NTSC, which I did:-(... Try to use AC3Machine and Besweet from Dspguru and convert your NTSC AC3 to PAL AC3. I hope this helps... Heinrich