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FCP HD playback slow to start/stutters

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Jacquie Nauman
FCP HD playback slow to start/stutters
on Nov 11, 2010 at 7:19:23 pm

I am subtitling a clip that is an HD imported QT clip. I have all the latest codecs and whenever I play NTSC video I do not have this problem. With the HD clips, whether they are from the cf card or an imported quicktime, when I play this clip it takes several seconds to start (whirligig thingy twirls for 5 - 10 secs) and often stutters thru the playback. I have unchecked the warning for dropped frames and checked my disc space. I am new to HD, so please bare with me. I am including screen shots of the pertinent settings....at least I think they are pertinent. If anyone can please tell me where I might have a wrong setting or what else I should look for? Subtitling is tedious enough without this slowing me down! This system should work fine with HD!

Thanks for your much needed help!

Jacquie

System info


USER PREFS - General


USER PREFS - Memory & Cache


USER PREFS - Render Control


SYSTEM SETTINGS - Scratch Disks


SYSTEM SETTINGS - Playback Control


SYSTEM SETTINGS - Memory Cache


MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Zak Ray
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 8:04:48 pm

CF card? Are we talking about a DSLR here? Did you transcode the footage properly through Log and Transfer, or take it straight from the card in it's native format?


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 8:22:28 pm

I should've been clearer. This also happens with footage pulled from a CF card....yes, that has been imported with log and transfer....but in this case it is a Quicktime movie that was sent from the client.



MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Zak Ray
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 8:28:24 pm

This is an MPEG-2 file. You can't work natively with this. Convert it to ProRes.


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 8:49:35 pm

I see. Ok. Am using Mpeg Streamclip to convert it now. Will see how that does. Thanks!

MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 9:42:25 pm

Yep. Much better. Still has to think a second but much better. It plays thru and I can easily step thru the clip. This is what my converted file became.



Thanks much!

MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 10:43:40 pm

Ok much better playing thru the sequence but it still takes a few seconds to start playing. If I play it from the Canvas play button it thinks a few secs then stops after playing a frame or two. If I play it from the timeline or the keyboard the whirly gig spins for up to 10 secs. What can I do to make it start more instantaneous?

MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Joey Burnham
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:19:02 pm

You don't need prores HQ. Just try regular prores. HQ is really only for frame sizes bigger than 2k.
Try it out and see if that makes a difference. At least it will cut down on file size and bandwidth.
Joey


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Zak Ray
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:25:51 pm

I wouldn't say that HQ is just for large resolutions, but yes, you can probably use regular ProRes for your purposes.

Also: where are you storing your media?


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:32:16 pm

ok. Converting again without HQ.

The project is on my external 2TB firewire drive which has more than 1 TB available. However, the converted clip was saved to my main drive.
Original footage is on the external.

MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Joey Burnham
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:33:50 pm

Are you able to run a speed test on that external? Might be as simple as the drive isn't fast enough to keep up with HD. How is it connected?
Joey


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:38:07 pm

Firewire 800. RPM is 7200

MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Zak Ray
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:42:04 pm

Should be enough for regular ProRes... I assume your sequence settings are also correct?


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Joey Burnham
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:43:39 pm

Yeah you should be okay. Have you run the regular drill of trashing prefs, rebooting in safe, repair disk permissions, etc?
Joey


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 12, 2010 at 12:24:06 am

Yup. Did all that.

MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Jacquie Nauman
Re: FCP HD playback slow to start/stutters
on Nov 12, 2010 at 12:28:58 am

I think seq settings are correct but I had to step away for while so can't look at the moment.

MAC: 2 x 2.8 Quad Core Intel Xeon
Memory: 2GB 800 MHZ DDR2 FB-DIMM
OS: Mac OS X 10.6.4

Final Cut Pro 6.0.6


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Zak Ray
Re: FCP HD playback slow to start/stutters
on Nov 11, 2010 at 11:37:19 pm

Firewire 400 or 800?


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walter biscardi
Re: FCP HD playback slow to start/stutters
on Nov 12, 2010 at 12:44:29 am

[Jacquie Nauman] "The project is on my external 2TB firewire drive which has more than 1 TB available. However, the converted clip was saved to my main drive.
Original footage is on the external."


All of the footage has to be on your external drive. NEVER put any media on your main System Drive.

Walter Biscardi, Jr.
Editor, Colorist, Director, Writer, Consultant, Author, Chef.
HD Post and Production
Biscardi Creative Media

"Foul Water, Fiery Serpent" Winner, Best Documentary, LA Reel Film Festival...

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walter biscardi
Re: FCP HD playback slow to start/stutters
on Nov 12, 2010 at 12:42:56 am

[Zak Ray] "I wouldn't say that HQ is just for large resolutions, but yes, you can probably use regular ProRes for your purposes."

Yes, ProRes HQ was designed for frame sizes larger than 1080. This has been discussed numerous times on this forum.

Walter Biscardi, Jr.
Editor, Colorist, Director, Writer, Consultant, Author, Chef.
HD Post and Production
Biscardi Creative Media

"Foul Water, Fiery Serpent" Winner, Best Documentary, LA Reel Film Festival...

Blog Twitter Facebook


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Zak Ray
Re: FCP HD playback slow to start/stutters
on Nov 12, 2010 at 12:50:10 am

I was under the impression it was also for particularly high-quality sources-- a film telecine or HDCAM transfer, for example-- even if the frame size was only 1080.


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