audio and video dropouts

[jdobbs]

Originally posted by gizzin
jdobbs didnt you get cells with the present dropouts in them and the originals from sir didymus? isnt this enough proof?, is it possible that a simple thing like not having enough ram on your computer could cause a dropout because it isnt providing enough information during the rebuild phase (not talking about the std buffer thing). I have a 1.6gig p4 with 256megs or sdram. this is just an idea I may be mistaken, but I don't think Sir Didymus has ever experienced any dropouts either. He is working to help DVD-RB standardize against the DVD spec -- and that was the genesis of the fix that went into 0.67.

There are lots of reasons why you could get stutter -- most of which are not related to DVD-RB.

[Sir Didymus]

@gizzin

Hi, :)

Let me state clearly (once more time...) that I never recently experienced dropouts, so I didn't send anything concerning dropouts to Jdobbs.

I just reported in the past some formal infringements (SCR timings too short, VOBU min len too short, STD Buffer Overflows) with the hope that addressing something related to these subjects it was benefical for people experiencing dropouts.

My job (as beta tester) on all of these formal infringements is ended: I think I provided Jdobbs with the proper elements about these subjects, and I can not do anything other. To say the thruth my feeling is that I have been sometimes too pushing, and I am afraid for this, especially considering that all the backups I have done with DVD-RB are playing perfectly on the standalones of my family (I have just three available).

All I can say more is that it is evident to everybody that ALL of the reported infringements have been addressed by Jdobbs, and for the ones where the cure did not introduce new troubles to everybody for reducing the troubles of few people, Jdobbs cured them.

SD

[lamster]

Originally posted by gizzin
is it possible that a simple thing like not having enough ram on your computer could cause a dropout because it isnt providing enough information during the rebuild phase

I sincerely doubt that. The O.S. takes care of memory allocation; if you don't have enough real memory, you'll just do a lot of swapping. If there's not enough swap space and a memory allocation request fails, then either the application checks the results of the allocation request and puts out an appropriate error message, or it doesn't, tries to use the NULL pointer, and crashes. I don't see any way that insufficient memory on your PC could lead to introducing stuttering in the rebuilt DVD data.

[psdos]

@jdobbs

Are you test with passion of christ? it dont work with Rebuilder or you want write a list of films with audio drops?

NOTE: in other post is the list, and your it dresses it

[jdobbs]

I've personally done the NTSC version of The Passion of the Christ with no problems.

[psdos]

You have a PM

[cbwarz]

Hi,

I guess i have bad luck :(

I have audio & video drops on Star Wars The Phantom Menace.

Done with:
* DVD-RB v0.6.7
* CCE SP 2.67.0.27
* SW Phantom Menace R4
* DVD Player Sony NC615

With previous versions of DVDRB i have more drops, now is less, but they are there :(

I have a feeling, note the word "feeling", that the audio 5.1 channels are doing the drops. When the sound has effects like volume high or something like that combined with other "thing" is when the drops arrise. But if audio is CBR then it isn't. Audio 1 is AC3 5.1, Audio 2,3 & 4 is AC3 Stereo.

All i have to say is: Sony Player in SALE. LOL.

Thanks jdobbs great program.

[KamikazeCJ]

Any possible solutions to my issue I listed above with "Matrix" ??http://forum.doom9.org/showthread.php?s=&postid=570058#post570058 (http://)

[Kwark]

What exactly is meant by audio dropouts?
I've rebuilt several movies so far, and tested only on my PC.

How can I test if the rebuilt dvd is okay?

[lamster]

Originally posted by Kwark
What exactly is meant by audio dropouts?
I've rebuilt several movies so far, and tested only on my PC.

How can I test if the rebuilt dvd is okay?
Test on a stand-alone DVD player. (Unless you're only making backups to play on your PC, in which case testing on the PC is sufficient.)

Listen to the audio. If you have dropouts, you'll know it.

[Rockas]

Listen to the audio. If you have dropouts, you'll know it.

off topic:
Maybe you should listen the video :D

... sorry lamster... I just couldn't avoid this :)
hope you don't get mad at me and...

keep it UP

[lamster]

Originally posted by Rockas
Maybe you should listen the video :D

But then I'd have to watch the audio, and I'd just get totally confused... ;)

[Kwark]

I don't have a SA player here, I watch most movies on my PC.
But when I go watch a rebuilt movie at my gf, is there a big chance that the dvd is bad?

If so, that would suck hard..
And it's still not known what causes these drops, and how to avoid them?

[Oldeman]

I used to have SEVERE audio dropouts using DVD-0RB and Quenc, but only on three different model Toshiba players. Not on my Apex 1500, Philips DVDR75 or on my PC software players.

On the Toshibas, the audio got completely out of Sync with the video and the result was unwatchable. You could start the movie at any point and in thirty seconds, the dropouts were VERY noticeable.

I have made several prior posts related to my Toshiba standalone audio dropouts.

Starting with version .60b, it was greatly improved and on ver .67 I can detect no audio dropouts on any of my players. As far as I can tell the audio dropout problems have been fixed.

Great job... JDobbs....

[TheSeeker]

@Kwark

What dvdrb version have you been using mostly? I think the worst ones for the dropouts are the low .6x versions. By .67 (the newest one) It sounds like the dropouts are gone for many. ALthough i have personally never seen dropouts on any of my backups. Well I take that back i saw them on one. The Deer Hunter. But that movie sucked so i didnt really care.

[bobkoure]

I finally got around to testing with my old-standby test DVD Van Helsing. (DVDRB .67, CCE 2.67, Panasonic DVD-R80)
There's a dropout within the first four or five minutes. Interestingly, the audio dropouts are simultaneous with lightning flashes, so the screen is going completely white for a flicker. I would have thought this was a player problem (too much data all at once as the entire screen was going from dark to white) but it does not exhibit it with the original disk. I do not see the audio decoder lights on my receiver flicker (as they did with the star wars disks encoded with DVDRB ... .64? - sorry forget the exact revision that that problem showed up). The audio dropouts are much shorter than with those previous SW ones, so maybe my receiver's indicators have more delay than the length of these dropouts.
Also, I am not observing (hearing?) dropouts when playing this re-encoded Van Helsing with WinDVD.
I plan to get to a couple of friends' houses to test against other set top players but have been overloaded at work - thought I'd post what I found even though I'm not done testing...

[jdobbs]

I've done the Van Helsing NTSC version with no problems.

[Rockas]

Any of you guys with dropout problems got a BenQ DVD recorder?
If you do try the book type change so that your recorded DVD get DVD-Rom format and then try them on your players... I think that should resolve your problems ;) - maybe this is possible with other recorders... check you manufacturer site :)

keep it UP

[erdoke]

@Rockas
I guess that book type bitsetting has nothing to do with possible dropout issues. If a standalone player won't recognize a DVD+R disc it simply won't play it. If it starts playing it, it should be OK throughout the whole playback.

[Rockas]

@erdoke
I'm just trying all the possibilities here... :)

Can anyone with dropouts just test it, please :)

keep it UP

[psdos]

I already found the solution for audio drops. Not to use Dvd-rb. Not another one, since his creator never has dropouts. It will be thing of my recorders, my discs, I am safe I. So there am I decide not to use it more. DVD+R DL powahhh

[juan0r]

Originally posted by psdos
I already found the solution for audio drops. Not to use Dvd-rb. Not another one, since his creator never has dropouts. It will be thing of my recorders, my discs, I am safe I. So there am I decide not to use it more. DVD+R DL powahhh

With that attitude I doubt you'll be missed.

[jdobbs]

Originally posted by psdos
I already found the solution for audio drops. Not to use Dvd-rb. Not another one, since his creator never has dropouts. It will be thing of my recorders, my discs, I am safe I. So there am I decide not to use it more. DVD+R DL powahhh Not sure what you said -- but good luck.

[erdoke]

Originally posted by Rockas
@erdoke
I'm just trying all the possibilities here... :)

Can anyone with dropouts just test it, please :)


I don't want to question your knowledge on book type, but it is only a disc type marker. It has role only when starting playback (or never). If it was started succesfully, it becomes just a regular playback. ;) So setting a +R marker to a DVD-ROM marker is only useful when your standalone (or very old DVD-ROM drive) doesn't recognize the disc which tells of itself being a DVD+R.

[powerslave]

jdobbs: I had all sorts of problems with video dropouts with cce basic 2.69 versions. Finally went back to 2.67 one and it finally worked. With the 2.69 version, after watching the encoding going on, it seemed like during encoding of certain segments, the cce screen would just disappear before reaching 0 and the next segment would start to encode. Has anybody seen this kind of behavior in any cce version?

[TheSeeker]

I have seen alot of people have alot of different issues with the cce basic 2.69 version. It seems like that is the worst version of cce to use with DVDRB.

[homey]

Just to add my $.02. I was getting dropouts with previous versions of DVD-RB. With 0.67, I've backed up about a dozen DVDs and not a one has them. Only changed has been the version of DVD-RB. Same media. Same version of Avisynth, CCE, etc. The backups are pretty much flawless now.

Thanks, jdobbs!

HDC

[eriksen76]

The recent movies I did with version 0.66 worked flawless

But today I encoded another movie (no pre-processing)and there was numberous dropouts.

Very strange I think

/Julius

[gizzin]

This happened to me too but in a earlier version. I cant really remember the exact number but it was a above 60. I did a encode of Gang Related 1pass w/analysis it had no dropouts. Then i did a multipass encode of 7passes and it had the dropouts in the exact same places as the other encodes had of previous version. To me this should of indicated a possible reason for the dropouts but im not sure.

[Ngr]

Hi

I get audio dropouts on quite many dvds. These mostly occur on scene changes. It may be that i have a Pionner dv-535 and a 717. They dont occur on any of my pc dvd players.
Worst of these is in i,robot R2.
I am using cce trial 2.69.00.27, avisynth 2.5.5, dvdrb 0.67.
I dont get any dropout if i use dvdshrink, dvd2dvd-r.

[rocko1911]

Hello there,

I'm new to the forum, so hello everyone!

Have these audio / video dropouts only occured with multiangle movies??
Otherwise I will get myself a standalone and can provide additional testing (of my non-multiangle movies done with RB).

@jdobbs: Thanks for this nice proggy :) Keep up the good work.

CU,
Rocko


Using:

DVD-RB 0.64
CCE 2.67
NEC ND2500-A
Verbatim DVD+R

[berndy2001]

Originally posted by rocko1911
Have these audio / video dropouts only occured with multiangle movies??

you are right, in only have these problems with multiangle disks too.
just tried it with 0.68 (no matter, if cce or procoder used)

anyone other who can report this?

[f@chance]

Just to add my experience so that JDobbs can go on with this excellent proggy. With 0.64 I did Voyager season 3 and had a few drop outs (small audio glitches) on two disks but no loss of sync.

Did the donation thingy and have done now many back-ups with 0.67 and 0.68 and have not encountered any audio difficulties.

Same AVS, CCE, DVD Remake 2.54 no other changes

Just went from 0.64 to 0.68

SA player is a Sony DVP NS-930V

Maybe the answer is donation :)

[DVD Maniac]

Got my v0.68 yesterday and gave it a test drive with what has become my defacto Rebuilder test movie - Paycheck. I must have run every single Rebuilder version with this.

Well, I am pleased to report that FINALLY the audio drops have gone!

Brilliant! Fantastic!

I am going to run more tests, but I am cautiously confident that you have found the solutions jdobbs. Well done!

Congrates to Sir Didymous as I am sure his buffer test proggie helped in this final solution.

Well done to the Rebuilder Team :sly:

[Sir Didymus]

Originally posted by DVD Maniac
Got my v0.68 yesterday and gave it a test drive with what has become my defacto Rebuilder test movie - Paycheck. I must have run every single Rebuilder version with this.

Well, I am pleased to report that FINALLY the audio drops have gone!

Brilliant! Fantastic!

I am going to run more tests, but I am cautiously confident that you have found the solutions jdobbs. Well done!

Congrates to Sir Didymous as I am sure his buffer test proggie helped in this final solution.

Well done to the Rebuilder Team :sly:

Sorry for the very late feedback to your important post. (Being off-line for some days...).

Your new is very cool, and I am very happy the problem seems being definitely solved. :) :) :)

I want to state my contribution has been very little, since I simply pointed out some formal infringement may had some relationship to the problem. Nothing more. So all the congratulations (adding some more on my side) should be directed to Jdobbs.

Cheers,
SD

[jdobbs]

Hey, my friend, I like to give credit where credit is due... you were very instrumental in finding this glitch. Thanks.

[TCrowe]

As of .68 the audio dropouts have been fixed? Can others confirm?

Thanks...

[eriksen76]

I justed tested 0.68 on a movie which used to have lots of "stutter" in the beginning (first minute or so).

About 70% of the "stutter" is gone, but still some of it is there. So we're almost getting there now aren't we.

I guess it needs to be tweeked a bit more Jdobbs :)

Also tested version 0.68 on a movie that have had a "drop-out" in the exact same scene with previous versions. I am happy to anounce that the drop-out is GONE now.

/Eriksen76

[DVD Maniac]

Audio Drop has always been the consistent problem with my players(s) until v0.68. I don't think I have seen any video stutter problems simce it was "fixed" many versions ago. I was under the impression that any video errors had been sorted and it was audio drop that was the remaining bug?

I'll keep a look out on future results.

[jdobbs]

There are no video stutter errors of which I am aware.

[eriksen76]

Originally posted by jdobbs
There are no video stutter errors of which I am aware.

You're right with version 0.68 I have not seen any video stutter so far. Only thing left is small audio stutter which has become even more rare with the new build.

Like I wrote ealier, one of my problematic "audio stutter movies" has left me like 30% of the audio stutter compared with previous DVDRB releases.

/Eriksen76

[jdobbs]

I can't figure what is is about your setup that make is so much worse than anyone else... what brand of player do you have?

[eriksen76]

Originally posted by jdobbs
I can't figure what is is about your setup that make is so much worse than anyone else... what brand of player do you have?

One JVC and one Pioneer connected to my 4:3 tv. Nothing special.

Audio stutter almost gone but not quite.
With build 0.67 and ealier you could not have overlooked this error during watching the movie, but with 0.68 i might be possible, as its small glitches in sound. The problem might be that I know in which scene to look for it, and therefore I listen closely and finds it.

Not a major problem, but believe me, its there. I did a backup of my new LOTR ROTK SE, and there where no problems at all during the 4 hours. So the error is very rare. But I always test the new versions of DVDRB on previous problematic movies.

If you're able to tweek it a little further, then send me the build and I will do the testing right away. Could be 0.68a ::)

/Eriksen76

[intimidation]

Hi...

I too can confirm that the audio drops are still there in 0.68, but as eriksen76 says they are much better than in previous releases of RB. where before they were very frequent, now they are less often and less noticable...

The player i have the problem on is made by Pioneer

What ever you have been doing seems to be correcting the problem...

Bradley

[TheSeeker]

You all should try out version 0.69. seems there were even more SCR calculation corrections so maybe that will lessen the dropouts even further.

[intimidation]

Originally posted by TheSeeker
You all should try out version 0.69. seems there were even more SCR calculation corrections so maybe that will lessen the dropouts even further.

Thanks Seeker...

ill give it a try..!!!

[J-Wo]

hey guys, I'm really excited to give 0.69 a try. I've dropped out of the DVD-RB scene for months but the last major problem I was having was audio dropouts, so I'm excited to give this new version a try. Has anyone had success with pre-processing (i.e. using VobBlanker of PGCedit to blank out cells) and producing an audio stutter free DVD-RB output? That's where most of my problems came from before. I know you can always encode and build with RB first, then blank out the extras you don't want, but that makes output size prediction a little tricky.

Anyway I'm going to give things a go and see how the new version works...

[NobbyNobbs]

Originally posted by J-Wo
Has anyone had success with pre-processing (i.e. using VobBlanker of PGCedit to blank out cells) and producing an audio stutter free DVD-RB output?

Most people using it have done this, only a very small amount of users have reported the audio-dropout thingy at all.:)

[Sir Didymus]

Originally posted by NobbyNobbs
Most people using it have done this, only a very small amount of users have reported the audio-dropout thingy at all.:)

Quoted. I am among the most... :)

[candsh]

I have never had a problem at all with audio/video drop-outs or stutering of any kind. I have a Pioneer DVD player and Burn with a Pioneer A06 and A08. One thing I do differently is I play all audio back through a Denon home theater Rec/amp. Never remove any of the DTS because my system handles it. If there were a problem it would show up immediately. I also have started using VOB Blanker to edit out some unwanted segments and have had no problems there either. I actually started doing this to TRY to create a problem but none showed up. Liked it so well that I have continued using Blanker, especially since Jdobbs mentioned the possibility of incorporating a similar type function into RB at some future time. Just don't seem to be able to create this problem even when I am trying to!! Might also mention the problem doesn't show up on other players I have tried, Go-Video, JVC, Sony, Apex