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Sluggish playback in FCP

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Mabel Lau
Sluggish playback in FCP
on May 8, 2012 at 1:50:00 am

Hi,

I've got a problem with sluggish playback in FCP

My config is as follows:

FCP 7.0.3

Model Name: Mac Pro
Model Identifier: MacPro4,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.26 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per core): 256 KB
L3 Cache (per processor): 8 MB
Memory: 16 GB

eSATA to 8T LaCie HDD

When I hit space bar, the beach ball appears, and when it's finally playing, the video in the canvas just stops playing, but the sound keeps going. The footage is from Canon HD.

I've tried cleaning the cache and preferences in mac, but the problem persists. Could anyone help me with this problem? Thanks in advance.


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Rafael Amador
Re: Sluggish playback in FCP
on May 8, 2012 at 1:59:44 am

[Mabel Lau] "The footage is from Canon H"
That footage is not supported by FC.
Convert to Prores before importing.
For a good workflow with that footage, have a look to Shane's tutorial;
http://library.creativecow.net/ross_shane/tapeless-workflow_fcp-7/1
rafael

http://www.nagavideo.com


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Mabel Lau
Re: Sluggish playback in FCP
on May 8, 2012 at 2:05:10 am

the strange thing is when I hook up the LaCie to another Mac Pro, it works perfectly fine, no sluggish performance. And yes, I've already converted those Canon HD to PR422.


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Shane Ross
Re: Sluggish playback in FCP
on May 8, 2012 at 4:04:21 am

Then something is wrong. Trash your preferences, run the disk utility to repair permissions.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Mabel Lau
Re: Sluggish playback in FCP
on May 8, 2012 at 5:15:24 am

I've already trash the preferencesa and repair the HDD. The problem is still there. I'm checking the ram now using memtest, hopefully it'll give me some answers.


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Jerry Hofmann
Re: Sluggish playback in FCP
on May 8, 2012 at 1:35:13 pm

Could also be an install that needs to be redone. If it's a busy machine, it's really best to rebuild your startup disk any time you upgrade the OS or the editing apps - after you've backed it up, as this would erase it.

Jerry

Apple Certified Trainer, Producer, Writer, Director Editor, Gun for Hire and other things. I ski. My Blog: http://blogs.creativecow.net/Jerry-Hofmann

Current DVD:
http://store.creativecow.net/p/81/jerry_hofmanns_final_cut_system_setup

8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17" MBP, Matrox MXO2 with MAX - Cinema Displays I have a 22" that I paid 4k for still working. G4 with Kona SD card, and SCSI card.


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Mabel Lau
Re: Sluggish playback in FCP
on May 9, 2012 at 1:54:57 am

I've re-installed FCP Studio, but the problem still exists. Any suggestions to what I should do next? Thanks.


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Mabel Lau
Re: Sluggish playback in FCP
on May 9, 2012 at 8:43:51 am

I re-examined my timeline and found that all of my clips are in PR422 codec except for one super which is in Animation codec. My timeline is HDV 1080i 50, is it possible that FCP or my HDD or my RAM don't have enough power to calculate the animation clip while playing the timeline, thus causing it to be sluggish? If so, is there any solution to the problem?


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Rafael Amador
Re: Sluggish playback in FCP
on May 9, 2012 at 9:29:06 am

[Mabel Lau] "I re-examined my timeline and found that all of my clips are in PR422 codec except for one super which is in Animation codec. My timeline is HDV 1080i 50"
Why is your sequence HDV?
Unless you intend to print to HDV tape I see no pint on doing that.
Beside slowing down rendering that will degrade your picture: High compression and geometry transformation (1440x1080).
rafael

http://www.nagavideo.com


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Jerry Hofmann
Re: Sluggish playback in FCP
on May 9, 2012 at 1:51:01 pm

I was suggesting a complete rebuild of your startup disk. You can back it up, then ERASE the hard drive, installing the OS, then updating it all the way, then installing FCS and updating it all the way...

If your clips are ProRes, then edit them in a ProRes sequence for starters.

Jerry

Apple Certified Trainer, Producer, Writer, Director Editor, Gun for Hire and other things. I ski. My Blog: http://blogs.creativecow.net/Jerry-Hofmann

Current DVD:
http://store.creativecow.net/p/81/jerry_hofmanns_final_cut_system_setup

8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17" MBP, Matrox MXO2 with MAX - Cinema Displays I have a 22" that I paid 4k for still working. G4 with Kona SD card, and SCSI card.


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Mabel Lau
Re: Sluggish playback in FCP
on May 10, 2012 at 2:27:04 am

I stumbled upon the solution today, I decided to delete all the render files relating to my projects and open my project again and re-render the timeline, and it works perfectly fine, no more sluggish playback. Don't know the reason behind it, but as long as it has solved my problem, I'm happy.

Thank you all for your suggestions.


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