Audio out of synch on one standalone but NOT another?

[guitar_george_skank]

I created a CVD with DVD2SVCD but used an average of 3008 Kb/sec. I know this is not standard but it works fine on my standalone (Acoustic Solutions 410). My friend has a Toshiba S210 and the same disk has the audio out of synch when played on his?? Can the higher bitrates affect the audio synch? I would have thought it would just affect the video quality or not play at all.

Hope someone has seen this before as I can handle audio issues with downloaded .avi's but have never had a problem with DVD sources.

Cheers

GGS

[poopyhead]

look in the dvd player compatability section of this website, it will tell you the max bitrates that the dvd players can handle.

[guitar_george_skank]

Thanks poopyhead, I forgot about that section.

Can the bitrate affect audio synch though? That's what i'd really like to know.

GGS

[poopyhead]

Can the bitrate affect audio synch though? That's what i'd really like to know.

yes, playing something w/ a higher bitrate than a dvd player can handle can potentially cause a lot of problems...

[RabidDog]

I have a tosh sd210 and VCD plays in sync ,, good
DVD plays in sync,, excellent
BUT svcd needs 300ms + on audio gap on tmpg

Boy you dont know how long it took to get that **magic** figure!!

[guitar_george_skank]

RabidDog:

Was that on a standard SVCD or was it an XSVCD. Just need to know because all the movies I do, I lend to my friend with the Tosh. Will a completely standard SVCD (or CVD) play OK in the 210?

GGS

[RabidDog]

Nope all svcd &xsvcd need the extra gap. But if they play well on yours but are out of sync on your mates who are you gonna please?? I suppose you could put an extra audio track on it? with the gap in?
I havent tried tried CVD yet, It says in the player section that it is incompatible.?
ALso CVD is not a recognized standard by any Mfr (except in China maybe)

[SatStorm]

You need to resample to 44100khz the audio and also keep the maximum bitrate up to 2520 if you want more compatibility.

That means do CVD. Not xCVD/xSVCD

Why you think there are standards? To prevent situations like this!

[guitar_george_skank]

Oh well, back to the standards it is then. SatStorm's quite right. Any way the quality on a CVD at 2520 is still going to be pretty good.

Thanks for your thoughts.

GGS

[guitar_george_skank]

Just found a new twist on this. I've been making standard SVCD's now but i bought a Samsung DVDS225 as a present for someone. It states it can play SVCD but the audio is out of synch on ONLY the first disc, not the second (or third if there is one). Why would it be out of synch on only the first disc and not the rest? This was also the case with the previous SVCD's when I started the post. If the SVCD's I'm making are all to the proper standards then surely they should work?

I'm using DVD2SVCD with CCE2.5 to convert PAL DVD's to standard SVCD's.

If anyone else has had this problem I'd like to hear about it.

Cheers,

GGS.

[xed]

You mention "if all discs are up to proper standards then surely they should work." Not necessarily. If the bitrate is too high for the DVD player, you can get sync problems and/or video freeze/stutter playback problems.
What's diabolical is that if you're burning SVCD's or XVCD's or CVD's using CD-R media you can be completely in spec according to the theoretical standard but the DVD player may freak out and playing the CD-R improperly.
The reason for this is that DVD players have varying maximum rates at which they can read audio/video data from a CD-R, as opposed to a DVD. Almost all DVD players nowadays can handle up to 9 megabits/sec when reading from DVD media. But some DVD players cannot handle above some set bitrate when reading audiovisual data from CD media.
This built-in limit on some DVD players is probably due to the fact that the engineers who designed the DVD players assumed they onloy needed to make their DVD players accommodate VCDs and therefore didn't need to handle bitrate as high as (say) 3 megabits/sec from CD media.
I have successfully burned XVCDs with a data rate up to 8 megabits/sec and those played back fine -- on my DVD player, a Daewoo 5700. On a friend's DVD player, an Apex AD-1100, the exact same XVCD on a CD-R had massive audio sync and video stuttering problems. On yet another firend's player, no problemo.
All 3 players played back DVD-Rs encoded at the exact same 8 megabit data rate with zero problems.

[RabidDog]

Guitar .. comaptibility section says cvd will NOT play on sd210 ... I havent tried it myself and when I get some MBs free I will give this std a go to see if it works on 210 with or without audio gap. Also I prefer doing the steps myself as at least you have some control or what is happening
Xed ... 8mb/s that must have been some svcd (jackie chan on FFwd??)

[guitar_george_skank]

Thanks guys I understand where your coming from but what's really tearing my hair out is the fact that it's only disc one that has the sych issue! The 2nd and 3rd disc are perfect. Now that's weird! The film is encoded as a whole with CCE and then multiplexed anf split with bbMPEG on it's SVCD settings. I'm goona try splitting to 4 discs (the 1st one will just have 30 seconds or so) and then not using the first disc to see if it's an issue with bbMPEG.

GGS.