Gordian Knot.

[therock003]

I experimented with the Gordian Knot pack and i have some questions.

A)As for audio,does it support vbr?Cause in the audio options it says average bitrate,which means abr.
B)Does it do normalization like AutoGK to make audio louder?
C)What's the Difference between Field And KErnel Deinterlace?Cause i encode to xvid from dvd-vf interlaced source,and i use deinterlace.
D)And one last thing,when i enable compressibillity check and press now,gknot exits.

[manono]

Hi-

I can take some of those.

A) ABR is a form of VBR. If that's not good enough, you can tick "Custom Parameters" and either use one of the presets, such as Alt Preset 160, or fill in your own.
B) I'm not positive, but I don't think so, unless you enable it in the custom parameters. Shouldn't it be normalized already? I could be wrong. Maybe encode and check the log.
C). FieldDeinterlace is from Decomb and is a blend deinterlacer (although you can choose the No Blend version). KernelDeint is the better of the 2 deinterlacers and the best offered by GKnot. Static portions of the frame are kept at full resolution and movement areas are interpolated. What is a dvd-vf source? How do you know it's interlaced?
D) I don't know why you're having a problem with the compress test. Are you following a guide to make sure you're setting it up correctly? And if so, which one?

[therock003]

A)Yes i know what i abr is,and i i aggre its not good enough compared to vbr.So how can i edit the preset to transcode to vbr normalized audio like autogk does?
D)I'm following the doom9 gk guide.

I meant dvd-vr sorry vr stands for video recordable and it's recordings from satelite channels and they're interlaced for sure,even dgindex says show and gspot.

As for optimizations,will i get better picture if i enable gmc,adaptive quantization and trellis?I'm not aiming for standalone compatibility.

[somebodeez]

I experimented with the Gordian Knot pack and i have some questions.

A)As for audio,does it support vbr?Cause in the audio options it says average bitrate,which means abr.
B)Does it do normalization like AutoGK to make audio louder?

A) Yep
B) Yep

In the Bitrate tab on the right hand side under "Interleaving & AVI-Overhead" you'll see "Audio 1" and a drop down box under that. Select "VBR MP3" so it can do the calculation for you.
(be sure "Calculate Frame-Overhead" is selected)

When you're ready, go to the Encoder tab.
Select your audio file.
I don't have my gnot in front of me so I can't say exactly what's there but you should see something that says something like "MP3 Custom Parameters".
Once you select that, on the left some more options will become available.

You could try these settings for example, 128 mp3 audio:
-L -3db -s surround -c normal
-alt-preset 128
Pregain 100%
and enable Boost

Remember to select whatever preset you calculated for.
Like if you calculated for 128 back in the Bitrate tab, use the preset for 128 and so on.

[manono]

Thanks, somebodeez. I hope he got you squared away to encode for normalized VBR, therock003.

If Doom9's guide doesn't help with running the compress test, perhaps Rita's guide will:

http://www.rita.lt/guides/GKnot_DVDtoAVI.htm

She has a section on the compress test about 3/4-4/5 of the way down.

...and they're interlaced for sure,even dgindex says show and gspot.

I was afraid you'd say something like that. This stuff is PAL? What DGIndex and GSpot tell you don't mean a whole lot. You have to examine these things with your eyes. Have you actually seen any interlacing? If they're movies, then almost certainly they're progressive. If you can upload a small section, I or someone else can have a look. Believe me, you do not want to deinterlace if you don't have to.

[somebodeez]

Thanks, somebodeez. I hope he got you squared away to encode for normalized VBR, therock003.

You're welcome and it's "she"

[therock003]

Lol a woman with encoding knowledge,way to go!So the boost setting has the same effect as the autogk normalization?

Also i read on some guide that the overhead calculation is strictly intended for divx output.

No it's for sure interlaced,cause when you're recording from a tv or satelite source your result is interlaced,it's not a dvd-video disc,it's a dvd recordable disc,and i'm most certain that it's interlaced.Sample i can not provide i'm afraid.

P.S.IS all that fuss really worth it?I mean will it yield better results than the AutoGK?Cause i really like the fact that AutoGk is automated.

[somebodeez]

Lol a woman with encoding knowledge,way to go!So the boost setting has the same effect as the autogk normalization?

Haha
Well, just a bit of encoding knowledge really.
I've never used AutoGK so I can't say if it's the same or not...

Also i read on some guide that the overhead calculation is strictly intended for divx output.

My mistake
I'm a DivX kind of gal

Yes, Doom's guide does say "for XviD you best uncheck Calculate Frame-Overhead or you'd get undersized files."

P.S.IS all that fuss really worth it?I mean will it yield better results than the AutoGK?Cause i really like the fact that AutoGk is automated.

For me, it's not a fuss at all. I'm so use to it I just pretty much zip right on through it.
I find the waiting for it all to get done to be the most bothersome.

Probably the best way to find out is to try both ways, compare your results and see which is better suited to your taste.

If you like you can just do the audio only in GKnot and see if it gives you the results you're after for your sound. Then you won't have wait for the video to get done...

[manono]

My apologies, somebodeez.

No it's for sure interlaced,cause when you're recording from a tv or satelite source your result is interlaced,it's not a dvd-video disc,it's a dvd recordable disc,and i'm most certain that it's interlaced.

They may very well be interlaced, but you haven't answered my previous questions, and you've provided no proof at all that they are interlaced, beyond just saying they are. If they're movies, the chances are great that they're not interlaced, unless they've been converted from NTSC to PAL badly. They may appear to be interlaced sometimes, and just have a case of field shifting that can easily be fixed without ruining them by deinterlacing. Something like DGIndex tells you how they were encoded and not what the source is like. There's a difference there that you don't seem to understand yet. So, the best way to check is to go over the frames. One way is to make the D2V and open it in GKNot, find a place with movement and advance a frame at a time. If you do see interlacing, the next step is to apply Telecide(Post=0) but without Decimate, and then have a look at the frames. If they now appear progressive, you had field shifts and they've been straightened out. If they still appear interlaced, then they really are interlaced, and can be deinterlaced.

I agree that doing this can be time consuming, but if quality is your goal, it's worth it. And I also agree that if you're not prepared to do the additional work in GKnot, you may as well continue to use AutoGK which can do these things automatically (except correct for field shifts).

If you'd like to be sure, cut a small piece using DGIndex. Find a small section with movement, isolate it using the "[" and "]" buttons, and File->SaveProject And Demux Video. Upload it here:

http://rapidshare.de/

[somebodeez]

My apologies, somebodeez.

Absolutely no problem, manono 8)

[therock003]

Well AutoGK is same thing with GKnot,except you don't get to configure the divx or xvid codec!That's the only difference.I also don't knoe if the cropping option is the same as gknot's.I really like the gknots auto crop option that gives a perfect aspect ratio and i don't know,if the same goes for autogk,i also don't know if autogk handles ac3 delay,cause i always seem to have a 37 ac3 delay.But the only major difference is that you don't get to tweak the codec,if that was the case then AutoGK would be complete.

Manono i'll try to upload a segment,when i get the time,so we'll be sure of my sat rips are interlaced.

[manono]

Manono i'll try to upload a segment,when i get the time,so we'll be sure of my sat rips are interlaced.

Sounds good.