Bufffer Settings?

[nostalgia]

I'm using Edius Workgroup 9.40.5106

The file is 4K and my computer can't handle it but when I do Shift-Spacebar it will play for a bit without any video or audio stuttering. Is there anyway I can do some kind of pre-buffer to buffer the whole project so I can watch it back with no stuttering issues?

Thanks,
J

[antonsvideo]

change the preview quality at top right and you should have real-time
https://www.videoproductions.com.au/...ew-quality.png

[nostalgia]

Thanks for quick reply, went through all of them and still have the stuttering issue.

[antonsvideo]

can you supply a screenshot of project settings and clip properties

[BernH]

post your system specs and info about the kind of file you are playing.

4K is hard to decode for older systems. The problem can be many things, like an under powered/slower CPU, slow drives, virus scanners or other background processes, and effects you may have applied.

If the file is heavily compressed the CPU may not be fast enough to decode. If you have an intel cpu with a gpu embedded, you may be able to help things by enabling quicksync decode. You can also convert the source files to a less compressed format like HQX at the expense of file size and drive speed requirements, but this drastically reduces the cpu speed required to decode, or if this is an edited project, set the project render codec to HQX super fine and do a Shift-Q render (render and add to timeline). This will create an HQX render file and place it on a top timeline layer. Now you will watch the HQX, but can cut pieces out and rerender if required or mute/unmute it easily. Switching the project to HD or using proxy mode can also help you get the edit done and play back at a reduced visual resolution.

The buffers, as your subject mentions, is just a chunk of ram to store frames that are decoded before they are displayed. If the buffer is not getting decoded frames as fast as they are displayed, or preferably faster, you will exhaust the buffer and run into playback problems.

[Cobra427]

My system plays 4k very well untill I use Mercalli videostabilizer. I think the same goes for Neat. These effects and some others or just many at once can slow playback and even make it stutter.

Chris

[David Clarke]

Shift-spacebar fills the RAM buffer then plays. It will start stuttering when you reach the end of the RAM buffer. It is like rendering but renders to RAM.

What you are asking for is basically the old fashioned way - render your timeline to a new file on the hard drive and play that instead of the original clips. This is a fairly rubbish way of working so it would be much better to find out why your machine is not playing back the 4K file. What processors and RAM do you have? What kind of original clips? H.264? ProRes etc? If we know this we may be able to advise on how to make your machine play better.