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Old 06-28-2019, 09:55 PM   #11
BernH
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Quote:
Originally Posted by James48 View Post
The buffer is RAM that holds a number of frames decoded in advance of you actually seeing them. If the buffer is running out, it means that your system isn't decoding faster than you are seeing the frames, either because your system isn't fast enough, the codec is too complicated, or there are too many simultaneous streams.

I currently mount in SD PAL 720x576 50i 16:9

I think my computer is pretty fast,
Intel Core i7-8700K 4.7 Ghz,
Graphic card: Asus Rog Strix GeForge 1080 A8GB,
Memory: 16 GB DDR4-3200 Kit
Yes that system is pretty fast, so that shouldn't be the issue.

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Originally Posted by James48 View Post
Yes, the first file is made with NewBlue Titler Pro

Also I'm using 2 different type of Field order?

James48
Your footage appears to be standard definition DV. This is a very easy codec for a system work with, so codec complexity should not be the issue, but active video plugins/effects can cause this problem, depending on what they are doing, which is, I think, what Steve was trying to get at. If there are effects on these clips, do you experience the same issue when playing a file with no effects.

Some other questions that might point to the problem:

What about the drives you are playing the media from? Are they internal or external, and if exrternal, how are they connected?

What Windows version are you running? Has it updated recenly?

Do you have any other software running?

Have you tried something as basic as a reboot of the computer?

Have you checked the system for malware or viruses?
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Old 06-29-2019, 10:44 AM   #12
James48
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Question

After changing the field order for Project Settings to 'Bottom Field', I notice that the problem with stuttering has been solved.
But since I was told in this forum that I should use 'Upper Field' in Project Settings, I'm worried now?

Regards, James48
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Old 06-29-2019, 05:03 PM   #13
BernH
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Originally Posted by James48 View Post
After changing the field order for Project Settings to 'Bottom Field', I notice that the problem with stuttering has been solved.
But since I was told in this forum that I should use 'Upper Field' in Project Settings, I'm worried now?

Regards, James48
DV is native lower field first. Some other SD footage is also lower field first, but not always. HD is always upper field first when interlaced. Using an upper field project setting in not required if all the footage is DV, but is recommended for sure if mixing DV into and HD project.

Changing the project field order should not cause buffer under-run. I'd understand if you were seeing field order related motion jitter, but not buffer under-run.

I haven't shot SD DV in many years, so I have no footage around to test this with.
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Last edited by BernH; 06-29-2019 at 05:10 PM.
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