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deBabba,
I did too always thought that if you apply "No Effect" transition it cuts away the last few and the first few frames of the two transitioned videos where you likely to have camera shakage as well as fades the audio in and out with just one click of a button.
Without transition, one will have to manually trim/clip the ends of the videos and manually apply audio fading himself. Am I correct?
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Check out my SVRT info. Isn't something wrong? What caused it and how to fix it?
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Another observation:
I started deleting clips in front of the lagging clip one by one and watch the difference. Eventually is started playing wihtout a lag.
I also tried inserting the same clip from the library into various spots of the project. It plays well at the begining of the project but starts lagging later on. Do you think a single clip in the timeline either with Power tools applied or effects messes things up?
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After some investigation I stumbled upon some pattern...
I noticed that the audio is somewhat ALREADY out-of-sync (i think) when a clip is played in the timeline (even before the production). When, however, I click on the source file and play it out of the library, the audio is syncronized well with the video. What's going on?
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Guys,
Just noticed that three of my most recently produced projects all have out of sync audio of the master track. Movies after "Production" start playing-back OK but after about 3rd-4th clip lagging begins, which is inconsist from 0.2-2secs from clip to clip. There are spots where it seems it catches on but then it happens again. Has anyone had this annoying problem and found a cure?
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Andy,
I wished you kept the original video so that we could compare the differences. From what I remember seeing last night I do not notice much of difference in quality. Which option have you gone for after all? How did it change your file size?
By the way, how long was the original video? Have you tried accelerating further in your second production, i.e. maxing out to X10 i/o X1.6??
I always wondered how they make those fast rolling sunsets that appear like at X100 speed or more?? . How do they render such projects, does anyone know?
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OK, I tried producing a few more things like:
A. Project with transitions (between every clip) was produced as H.264 1920x1080 without having "SVRT Allowed".
B. Same project was similarly produced with SVRT.
C. Same as B. but with all the transitions removed.
Bitrate of the final file
A. 14.9M
B. 15.7M
C. 15.5M
Video Quality
A. significantly lower, comparing to B. and C.
B. looked pretty much the same as C. even though 36% of the video in B. needed to be rendered due to transitions, etc.
My verdict is that having transitions, effects or titles doesn't significantly deteriorate the video quality of the final video. Simply put, it only takes longer to produce the file.
Just make sure you "Allowed SVRT" option in the properties.
I think, at this point I can say with certainty that I have all the knowledge of the software now to produce the best quality HD files to watch on my HD TV.
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Tried to re-burn the project onto a DVD-R with "SVRT Allowed" turned on.
Burning time was quite reduced (from 55mins to 30mins) but not as much as expected. When I went to check SVRT preview later on, I saw that about 36% of the clips required Video rendering, must be due to the transitions. I tried to delete them all and to "Produce" an AVC H.264 1920x1080 file where 0% of video needed rendering. An 18min project took only 8mins to Produce. Not bad.
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Dom,
That is true. You have one-two tracks available per category, the rest you will have to buy.
The question is, when they offer the whole CD for $99, does it cover all of the songs visable in the sole category, like Jazz/POP or Classic?
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Andrew,
The ONLY reason for using "NO Effect" transitions was to produce the smoothest effect between the clips. I suppose you are saying the same can be done without?
I made another post asking for some tricks on removing such transitions.
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Zoltan,
Well done on this workaround.
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If for example you placed 5 clips on the timeline, and did not apply any transitions from the 'transition room', one clip would jump to the next and no re-encoding would be needed.
I actually have ALWAYS applied transitions between EACH clip.
Shall I rethink it?
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I love "No Effect" transition for the group of clips of the same subject.
Since ALL transitions need to be re-encoded in SVRT mode I was wondering if you know a trick of simulating "No Effect" transition by trimming/clipping your clips and without compromising SVRT rules. Is it even possible at all?
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Andrew,
Completely missed your above replies. I will try to re-burn the DVD and take a note on the difference. Reverting.
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Andrew,
I am REALLY lucky to have you here with similar camera and PC parameters. Sweet. What would I do without you.
The changes to your bitrate in your newly produced file (since ticking the SVRT option in preferences) indicate to me that SVRT is now working properly. Your raw files are 16mbps so the second bitrate reading of 15.7mbps is consistant with that. The previous reading of 14.9mbps indicates that far more of your project was encoded than was needed.
Excellent! I surely know more now on encoding.
Actually no, although you would be forgiven for thinking so. The SVRT analysis function does not take into account cameras that record in dolby 5.1 like yours does. Therefore, it claims that audio needs to be re-encoded, when in reality provided you select your audio as Dolby 5.1 either in Produce or Cerate Disc it does not.
I take it there is no re-encoding of sound after all. Sweet
Provided you do not apply any effects or transition to the beginning or end of a clip, no re-encoding at those points is required, as indicated by the SVRT check function.
Not clear. Isn't it where you normally put transitions at = beginning or end of a clip?
Can you re-run that AVCHD project you mentioned in your other thread and give me the new time?
Not clear here either. Why do you want me to re-run it, which thread or project?
Cheers,
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Yes Andrew, I did.
I thought you saw it in my previous post above...
...
Update....
In the preferences box I changed:
[Produce] - i ticked "Allow SVRT"
....
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File Transfer Protocol (FTP) is a standard network protocol used to exchange and manipulate files.
In other words, it is a site on the internet where you can upload to or download from files.
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I think the "patch" has a problem. I requested tech support for a full version on 2508 that eliminated problems. Try it, send them a ticket.
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I found the exact problem with mismatched audio format: source vs output. The difference is "ADIO channel mode". Doh?!? How can I change it to match.
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Andrew,
My audio (in 5.1) also sounds like deep in a bathroom, epsecialy when a person holding a camera talks behind it. Talking in front of the camera doesn't create such "deep" effect. I wonder if it is anything to do with the video being Dolby Digital while setting on my amplifier are "surround sound". Have you had a chance to play with manual settings?
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Andrew/Zoltan,
Update....
In the preferences box I changed:
[Produce] - i ticked "Allow SVRT"
and in
[Editting] - i also ticked "Allow Cuda.." + "Allow hardware decodong." - not sure though if these two changed anything
When I went to preview SVRT info of my project I noticed that only minority of the clips required renderig, which were either:
- quite short
- had titles
- as well as all transitions required rendering.
On top of it, the whole project still required Audio rendering. That's strange since my source files were recorded in Dolby Digital 5.1 with bitrate of 448kbs and my final project in "Produce" had the exact same settings.
After I completed "producing" a new H.264 file I compared its stats to the one that appeared pixelate the night before. There were some changes:
New file was 100Mb bigger and had bitrate increased from 14.9Mbps to 15.7Mbps.
I then went to check the video quality. The newly produced video showed pine tree better in the middle of the clip with an exception of 2 sec in the beginning and the end, mostly likely because of the "No Effect" transition used at the beginning and the end of that clip, therefore some rendering was required that degraded the quality of the video??? How to go about this? Minimize the use of the transitions?
Lastly, here is what I found under SVRT in help. Can you please put some light on these "2 seconds before and after..."? Does it mean one has to exceed the 2 secs from the clips ends when doing trimming/splitting in order to still allow SVRT?
p.s. Andrew, do you also tick x.v.Color when burning?
Things that affect SVRT
- Adding a title or transition effect
- Modifying the color of a video clip
- Audio profile does not match destination production profile
- Modifying the volume of an audio clip
- Merging two video clips (clips within 2 seconds before or after the merged clips will be rendered)
- Splitting a video clip (clips within 2 seconds before or after the split will be rendered)
- Trimming a video clip (clips within 2 seconds before or after the trimmed clip will be rendered)
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