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Video stuttering and crashing in CS6
Hello all,
I’ve also posted this on the Blackmagic forum, so please forgive the duplication, but I’m not sure if it’s a BMD driver issue or an Adobe software issue…
I have a 27″ iMac purchased in January of this year (3.4 ghz Intel Core i7), 12 gigs of RAM and the 2 GB AMD Radeon HD 6970M. Have the Blackmagic UltraStudio 3D box – all newest drivers for both BMD and Adobe. Am having a video stuttering problem, and it might be a dealbreaker for me with CS6 if it’s not resolved (I don’t have this problem with FCP 7). I’m just playing a simple video track and ONE audio track, not doing anything but watching, just one take with no edits, and suddenly the video starts to stutter and the whole program becomes unstable. This has happened with other timelines and other video sources as well. Any ideas?
And as reported by others, my external monitor is noticeably out of sync with my program monitor. Thanks…
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14 Replies
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Might be helpful to state the format you are having problems with and the raid array you playback your media from. For the Mercury Playback Engine that is as important as CPU speed, Ram size and GPU card.
Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com
Mac Pro 3,1
8 core
10.7.3
Nvidia Quadro 4000
24 gigs ram
Maxx Digital / Areca 8tb. raid
Kona 3 -
Hi Tom,
Sorry – you’re right I didn’t mention that. I’m just running a single FW 800 drive, no RAID. As I said, I don’t have any such stuttering issues with FCP 7 and my Blackmagic device there. I’d be shocked, however, if the only way to solve this problem would be to get a RAID or a Thunderbolt drive…
Thanks for your assistance. You’re always very helpful to people on this forum.
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Well, thank you for those very kind words.
Again, not knowing what format you are playing back makes it hard for me to help. But in my experience a high speed raid for PrP can be crucial since its design and function is very different from FCP where all media is transcoded to a codec (Prores) that FCP is optimized for.
Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com
Mac Pro 3,1
8 core
10.7.3
Nvidia Quadro 4000
24 gigs ram
Maxx Digital / Areca 8tb. raid
Kona 3 -
Hi Tom,
You may indeed have hit upon the issue – I’m working with H.264 1920×1080 footage that’s been encoded with a 45 mbit data rate.
Of course, FCP won’t play this back happily either; it would need a transcode to ProRes for that to happen. I did try a ProRes transcode with some of the footage in PPro, but it’s not optimized for that codec the way FCP is and it still stuttered.
If a RAID or a Thunderbolt drive is the only solution to this, I guess I’ll have to spring for one. However, I don’t recall seeing any warnings from Adobe regarding this requirement.
Thanks again for any advice…
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Glad to help. Let me know how things go for you.
Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com
Mac Pro 3,1
8 core
10.7.3
Nvidia Quadro 4000
24 gigs ram
Maxx Digital / Areca 8tb. raid
Kona 3 -
Hi I am using a macbook pro i7 16gb of ram and I bought 4 crucial 512 mb SSD drives using the AJA system test I see 250mb/s write and 450mb/s read using the SSD I also use a 3.0 gb/s esata card and monoprice 2 drive bay also 3.0 gb/s and I am seeing about 105-9 mb/s write and 125 mb/s read if I use my FW800 drive with a Hitachi travelstar 7200rpm drive i only see 25-35mb/s depending on the chipset of the enclosure.
What I’m trying to say is, your FW is probably too slow for the playback… That said, I can’t really scrub quickly in Premiere using my setup but I am using an AMD 6770 GPU however, Adobe now allows certain AMD GPU’s to run the Mercury playback but you have to be on 10.73 or something like that. I have two laptops and one is on 10.7 and the render is faster by 30% so I would assume my playback is improved as well.
Hope this helps.
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As Tom mentioned, it is probably the limitations of my FW 800 throughput. Thanks for your help – I’ll have to spring for that Thunderbolt drive after all (and just back up on bare SATA drives)…
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Im not sure this will work. But Amazon has a great return policy on most items. If you do some research and find a Raid array that you like, it might be a good idea and order it through them (but not a third party vender which they also do at the site). Then if its the answer to your problems, you are golden. If not, you can return it. Though my best guess would be the right system should make a dramatic difference in CS6s performance.
Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com
Mac Pro 3,1
8 core
10.7.3
Nvidia Quadro 4000
24 gigs ram
Maxx Digital / Areca 8tb. raid
Kona 3 -
Hi Tom,
I’ve gone ahead and splurged on a new Thunderbolt drive (remember, unlike you I’m still on a Mac – an iMac, actually so eSata won’t work for me). B&H had the Western Digital 4 TB MyBook Thunderbolt drive for $479 – it’s a little slower than some of the other TB drives out there but what I liked about it was the fact that I can swap out drives easily (it acts like an enclosure). Anyway, it arrives here next week, and I’ll post my experiences with it.
Again, many thanks for your help and advice!
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Glad to help. I hope it solves your problem.
Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com
Mac Pro 3,1
8 core
10.7.3
Nvidia Quadro 4000
24 gigs ram
Maxx Digital / Areca 8tb. raid
Kona 3
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