Video stuttering and crashing in CS6

[Robert Ober]

Hello,

I did not see anyone mention this, but you can turn down the playback resolution. It really helps on my non CUDA equipped machine.

Good Luck,
Robert

[David Gaudio]

Thanks for the tip – but it didn’t seem to make any difference in my situation. I’ll wait for the TB drive and report back…thanks again for your help.

[David Gaudio]

Hello all,

Okay, just got the 4TB MyBook Thunderbolt Duo in, copied my media, started PP6,and reconnected with no problems.

Unfortunately, all my video stuttering remained. Argh.

I noticed if I switched from Full res to 1/2 things played back a little more smoothly, but I’m still getting plenty of stuttering. That’s after I completely deleted my preview files and started afresh, as it were. The dropped frames indicator doesn’t stay green for long on the program monitor; it changes to yellow almost immediately.

Using the Blackmagic Speed Disk app, I can see the new 4 TB Thunderbolt drive is plenty fast (averaging about 240 mbits/sec), so that’s not the problem.

I’m working with 1920×1080 DSLR footage captured with the H.264 codec at about a 50 mbit data rate. When I switch to the H.264 codec for preview renders it looks awful. When I switch to the Blackmagic 10 bit or ProRes (HQ) codecs it looks dandy, but the stuttering problem persists.

I know I’m not taxing the system very much (again I’m working with a 3.4 ghz Intel i7 27″ iMac purchased back in January with a 2gb video card and 12 gigs of RAM). I only have one video track and six audio tracks playing. I have the UltraStudio 3D box from Blackmagic as my external monitoring device, with the latest driver (9.5.3).

Any ideas? At this point, I’m thinking of uninstalling and reinstalling to see if that makes any difference…

Thanks again for any assistance.

Cheers,

David

[Jez Hunziker]

I think I chanced across a solution for this I’m running a 1080 25p Canon 5D DSLR sequence on a i7 Macbook Pro 2012 and after a time without any effects I get stuttering scrubbing in viewer, timeline no matter the playback resolution.

There are two modes for the Mercury Playback Engine. The are:

If I quite and reopen, no problems for a while. weird.

A) Mercury Playback Engine GPU Acceleration
B) Mercury Playback Engine Software Only

I turn the Mercury Playback Engine to software only and no problems anymore. This seems strange as GPU option should be faster.

I think the reason why has to do with the Maximum Render Quality mode setting. Adobe Premiere has a setting called the Maximum Render Quality mode (or MRQ). This is default on if you are running GPU Acceleration and off for software.

Details here…
https://blogs.adobe.com/premiereprotraining/2010/10/scaling-in-premiere-pro-cs5.html

The system is taking on much more quality in the timeline with this on and I think this is causing my cheap Ramm to malfunction.

Not 100% sure but it seems to work with 5D and export gives option of using Maximum Render Quality so All GOOD!!!

Hope this helps

J