Alludo USER to USER Web Board

For all who have the frame jump/hold problems at scene changes when using the SmartRender (MPEG Optimizer) mechanism there is a solution! Of course, there is no guarantee that it works in all cases but absolutely worth a try. In fact, I already mentioned this solution before but it went unnoticed.

You will need Nero Vision 8 (or 9 but I didn't test it).

1. Run it and choose "Make DVD" > AVCHD
2. Choose "Add Video Files" and add all the files you need to fix
3. Wait until they are added and analyzed, then click "Next"
4. Choose "Do not create a menu" under "Menus to use", click "Next"
5. Click "Next" at the preview screen
6. Click "More" at the bottom of the window and click "Video Options"
7. Set video mode to either "PAL" or "NTSC", whichever your source material is, and set "Nero SmartEncoding" to "Enable"
8. Switch to the "AVCHD" tab, click "Configure Encoder" and choose the "Highest" quality, push "OK"
9. Under "Quality Setting" choose "Custom" and set bit rate below to that of your source
10. Make sure that resolution is the same as in the source
11. Click "OK" and then "OK" again to set those settings as new default
12. Click "Recoding settings" and uncheck the "Write" box
13. Click "Write to Hard Disk Folder" and choose where you want your fixed files be placed
14. Click "Write"

At some step it may warn you about that there'll be no space on the DVD, ignore it since you're not going to burn. Very short files (about 10 seconds) will be always re-encoded, I don't know how to avoid this. Also, very rarely, some files simply could not be added to the source list.

When finished just use the files Nero has created instead of the original, they are 100% of the same quality (except the short re-encoded ones).

Болшой спасибо! However, I am not sure about the implications of this. As you are aware, the blips when the AVCHD is processed in Video Studio appear to be related to the VS transitions which are inserted. Are you saying that the new clips processed through Nero no longer have this problem when then inserted in Video Studio, and transitions are placed between them?

Ken Berry wrote:Are you saying that the new clips processed through Nero no longer have this problem when then inserted in Video Studio, and transitions are placed between them?

Exactly. I don't know how reliable is this method but I tried it on several clips, splitted them in many places with and without transitions: there were no problems! I couldn't edit anything without glitches in the output before, even without any transitions, now it works. I'd like to hear from the others how solid this solution is.

Hi

I can confirm that once video files (mts, m2ts) go through NERO, you loose all the blips - both in AVCHD disk and file. However, I won't agree that the quality is exactly the same. It is very nice, but still you lose the sharpness of the original files.

Another method I tried, was to use AVCHD UP-SHIFT software. It's extremely easy to use and very fast Also, it is cheap. The quality you get is visibly better than that from NERO.

In both cases the transitions look fantastic.

Przemek

Przemek wrote:but still you lose the sharpness of the original files.

How can you lose sharpness when Nero doesn't re-encode anything? It simply can't encode anything that fast. Nero SmartEncoding is smart render, the same thing. As to Up-Shift, I'll also give a try. That's cool you've proven my method works. Dziekuju!

Just tried AVCHD UpShift. It's is not lossless, it's intended for lowering AVCHD bitrate for faster editing (good idea by the way). Of course there's no guarantee that Nero Vision doesn't do something like that to the stream but still I'd better stick to Nero since I noticed that it says something like "100% direct stream transfer" in the info window just before conversion.

Pleased that could confirm the result of your workflow! It's good to know that somebody is digging that deep!

About your suggested step - I simply cannot repeat your result with NERO. There is no way I can obtain a "100% direct stream transfer". I've just tried five times to repeat all your steps but I always get "transcoding" of the files (it takes about 40 minutes for about 4 minutes of video clips). My original video files are from HF100 - NTSC, 1920-1080, max 16000 bitrate, dolby digital. Max setting in NERO is 14000 - but as you mentioned, the bitrate should be lower than that of the original clip.
I might be doing something wrong, but I simply do not know where. This might be the reason why I get better results with AVCHD Up-shift.

Now, that I think of it, it might be something with the properties of my video - I get excellent results in X2 with - Create File (same properties as the first clip), but when I create an AVCHD disk and I set the properties to the same as on the clip, I get worse quality (the video loses its sharpness).


Any idea?
Przemek[quote][/quote]

This is strange, your bitrate problems with Nero. I got Nero 8.3.6.0 and and it allows custom bitrates up to 17000 kbps and actually it seems that this setting doesn't affect SmartEncoding, I set, say, 14000 kbps and it still smartencodes everything. My cam is Canon HF100, set to FXP quality (17000 kbps). Try "Automatic" instead of custom bitrate. Maybe your project doesn't fit a DVD and Nero somehow's trying to squeeze everything? Then try to change the setting on the "Add files" screen to DVD-9 (double layer).

Here are the screenshots of what it should look like:

Thanks a lot for the screenshots! Believe it or not, but when I tried with exactly the same settings it did not work either. It turned out that you need a new Nero version to be able to do that. So, I upgraded my Nero 8 and it worked like a charm (click Update and off you go)!

I remember that somebody asked this question about the 100% smart render, and that you mentioned that shorter videos (shorter than 10s) are not smart rendered properly. I noticed that all videos get smart rendered 100% and only audio doesn't in case of shorter tracks.

Now, I'm in the process of recording an AVCHD disk - will post the results as soon as I check them properly.

One thing - I noticed in the burning module that it said 564MB for 7min 44s of video (you know this green line on the bottom) - when I completed writing the disk, it said 900MB ??!! Any clue?
Przemek

It took me a while, but I do not have good news. NERO works fine, a I wrote in the previous post, but the video does have those distortions.
They are small but noticeable and, as it has been noted before, they are random. Out of around 15 transitions, about 4 were without glitches. The kind of transitions did not matter, so for example, crossfade transition happened to be with and without the distortion. I tested this on an AVCHD disk and a file (in case there was something wrong with disk writing).

It seems to me that we are bound to get those distortions, unless the video is transcoded and the time coding of the clips is set the one acceptable by VS. As I tested before, once the video clips are transcoded by NERO (or AVCHD Up-shift), you won't have problems with any glitches. They simply disappear. The quality might suffer slightly, (in case of Up-Shift I could not tell the difference between the original clips and a video file created with X2) but that's life... We might get a present from COREL some day.... imagine a Christmas present in the form of a patch!!!! Just a dream, I presume...

By the way, can anyone confirm that the video quality from a USB disk (or hard drive) is generally better than that from a disk? The videos from a disk have better blacks, more contrast and sharpness.
Przemek

Artifacts seem to be related with the motion in the video at the time transitions are applied. No motion>no artifacts

erdna wrote:Artifacts seem to be related with the motion in the video at the time transitions are applied. No motion>no artifacts

It's not actually, since there's no motion you just can't notice any distortions. They are there.

Przemek, I tried again and there are no glitches! Try "Create Video File" instead of "Create Disc" and make sure you set all the advanced options (frame size, bitrate) to those like in your sources (in VS, not in Nero this time).

Przemek wrote: By the way, can anyone confirm that the video quality from a USB disk (or hard drive) is generally better than that from a disk? The videos from a disk have better blacks, more contrast and sharpness.
Przemek

In my opinion:

If the source material is the same (source I mean footage from HDD or DVD), the only thing which have influence on picture quality is "path" settings between drive and display (I will point out display input).

Przemek, I tried again and there are no glitches! Try "Create Video File" instead of "Create Disc" and make sure you set all the advanced options (frame size, bitrate) to those like in your sources (in VS, not in Nero this time).

I tried that as well. In both cases NERO did not transcde the clips, and the video in X2 was not transcoded either - I did set the same properties as those of the clips (in the burning module) and it took about 18 minutes for an 8 minute video to burn an AVCHD disk, and about 3 minutes less to make a video File.
It is quite distressing - we have the same cameras, use the same software, and yet, get different results. I will give it another try with different video clips and will let you know.

erdna wrote:
Artifacts seem to be related with the motion in the video at the time transitions are applied. No motion>no artifacts

It's not actually, since there's no motion you just can't notice any distortions. They are there.

Fully agree - I noticed that as well - the distortions are there, they are just bigger or smaller depending on the motion.

If the source material is the same (source I mean footage from HDD or DVD), the only thing which have influence on picture quality is "path" settings between drive and display (I will point out display input).

Don't really follow you here. My understanding is that both the disk and file should be of the same quality if made using the same parameters. I tried that about 15 times, and always get worse results with AVCHD disks. I play the disks on PS3, and the Files from a USB disk (WD).
Przemek

Przemek wrote: Don't really follow you here. My understanding is that both the disk and file should be of the same quality if made using the same parameters. I tried that about 15 times, and always get worse results with AVCHD disks. I play the disks on PS3, and the Files from a USB disk (WD).
Przemek

I did not understand you properly, sorry.
I wonder if the files (from "file" and disk) have the same "weight" in Bytes ?