Is it my hardware?

W

WpgCameraMan

Well-known member
Running up against a serious problem today with Premiere and Windows 7.. and I'm leaning towards Win7 causing the issues.

Here's the basic system.

Asus M3A78-EM , Phenom II 940 Quad core 3.0ghz , 8GB. Latest bios, multiple HDD's , all Sata2, separate OS HDD. On-board VGA is disabled.

When I use Windows XP x64 and a PCIe Radeon 2400HD, my playback is pretty much stutter free, if there's only one track of AVCHD, things are fine. I could live with this if I had to.

I switched over to Win7x64 and a Nvidia 8400GS , playback is horrible. All sorts of splotches in the video, and the JKL keys didn't respond very quickly. Scrubbing is also somewhat poor. I get a 3.6 for graphic performance via the Windows Experience tool, all the other numbers look all right for what the system is.

I throw in the 2400HD, about the same, with a 3.3 index

No PCIe video, using on-board VGA (3200HD) it's just as bad, but Windows can't do the performance test (?). I should mention that playback with On-board VGA under XP is just as bad, because of the shared memory.

In all cases, I'm using 'classic' desktop theme with Aero turned off & the most up-to-date drivers I can find, everything is x64.

I started a project this morning with the Windows 7 / 8400GS setup, but after 10 minutes, I had to go back to my XP configuration (dual-boot, just switching video cards).

I'm really wondering if somehow the graphics cards are getting ahold of my system RAM and that is causing the sluggish rendering. Onboard or PCIe, Premiere can't playback any AVCHD nicely under Win7.

I've got a GTS250 coming this week because I had hoped to move to CS5 with all that CUDA goodness, and in the meantime maybe speed things up a little, but if Win7 is the issue here, I don't know anymore.

Anyone else have problems with AVCHD, Premiere & Win7 ?
 
I edit avchd using premiere cs4 and win7 64 bit, and I have no problems with playback, can play 2 streams of 1080p25 smoothly, 3rd stream starts complaining. I have i7, 6gb ram and gtx260 card.

Nevertheless I transcode footage before editing because of other issues between cs4 and avchd..

In my experience GeForce does speed things up a bit, but I have never performed any real tests to prove this. I am curious to see will u notice any improvements when you hook up that gts250.
 
Just to make sure; are you "rendering" your sequences prior to playback and scrub?
 
Not rendering, just playing raw AVCHD 1080i60 off the time line. Hmm.. I should try playing back from Media Player Classic, or something else outside of the Premiere rendering engine.

The fact the 2400HD works quite well with XP yet blows chunks under Win7 makes me wonder if Premiere isn't asking & getting the best it can from the OS.

I need to find a video test program and try it under both OS's, guess that would sort Premiere's role in this easy enough.
 
You've imported and placed a clip, or created a sequence of clips onto your timeline AND have not RENDERED for previewing. You should try RENDERING then:

From Adobe:
To play back complex sections in real time and at full frame rate, you may have to first render preview files for those sections. Adobe Premiere Pro marks unrendered sections of a sequence with colored render bars. A red render bar appearing in the time ruler of a sequence indicates an unrendered section that probably must be rendered in order to play back in real time and at full frame rate. A yellow render bar indicates an unrendered section that probably does not need to be rendered in order to play back in real time and at full frame rate. Regardless of their preview quality, sections under either red or yellow render bars should be rendered before you export them to tape. A green render bar indicates a section that already has rendered preview files associated with it.

http://help.adobe.com/en_US/PremierePro/4.0/WS1c9bc5c2e465a58a91cf0b1038518aef7-7cd4a.html

http://www.youtube.com/watch?v=Sj30NeWux_I&feature=PlayList&p=7F9CFEFCB1D849CF&playnext_from=PL&playnext=1&index=58
 
reygun said:
You've imported and placed a clip, or created a sequence of clips onto your timeline AND have not RENDERED for previewing. You should try RENDERING then:

From Adobe:
To play back complex sections in real time and at full frame rate, you may have to first render preview files for those sections. Adobe Premiere Pro marks unrendered sections of a sequence with colored render bars. A red render bar appearing in the time ruler of a sequence indicates an unrendered section that probably must be rendered in order to play back in real time and at full frame rate. A yellow render bar indicates an unrendered section that probably does not need to be rendered in order to play back in real time and at full frame rate. Regardless of their preview quality, sections under either red or yellow render bars should be rendered before you export them to tape. A green render bar indicates a section that already has rendered preview files associated with it.

http://help.adobe.com/en_US/PremierePro/4.0/WS1c9bc5c2e465a58a91cf0b1038518aef7-7cd4a.html

http://www.youtube.com/watch?v=Sj30...B1D849CF&playnext_from=PL&playnext=1&index=58
Click to expand...


Ok, but we are generally speaking about native avchd playback and editing without rendering.
If you set up your initial sequence right - there is nothing to render.
 
Interface said:
Ok, but we are generally speaking about native avchd playback and editing without rendering.
If you set up your initial sequence right - there is nothing to render.
Click to expand...

Exactly, fresh from the camera to the time line. Yikes. I noticed some jittery playback today under XP. Though the HDD with my source footage is more than capable. Unlikely the problem is fragmentation, I don't think I've ever deleted a file on that drive yet. Running speed tests tonight. Best I can see under XP, the only memory video cards get is what they have on-card. Under Win7, they some system ram, almost like a laptop GPU would do, which is of course deadly for editing HD.
 
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