-
Multiclip Playback Trouble
I’ve synced up three video clips into a multiclip. Each clip inside the multiclip is about 30 minutes, dvcprohd codec wrapped in .mov. I have the multiclip in a sequence (and viewing three-up in the viewer) and when I play it back my computer is unable to play the three videos in real time, having to stop and eventually only plays the audio. The sequence settings match my clip settings.
I have the media on my second internal drive. Computer is a Mac Pro 2.26 8 Core, 16 GB 1066 MHz DDR3 Memory. I’m using FCP7. I’ve never had this problem before when playing a multiclip with two clips synced. I wouldn’t think my computer would have trouble playing back a multiclip with three videos.
Other info: I don’t have any other applications opened but FCP7. The scratch disk that the media is on is WDC WD20EARS, 2 TB, but only 345 GB left on that drive. Could that be the issue?
Thanks for the help. Let me know if you need more info or if I left something out.
-
15 Replies
-
In the RT drop down menu on the upper left of the timeline, make sure to select MULTICLIP PLAYBACK.
Shane
GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def -
Multiclip Playback is checked. Unlimited RT is on, playback video quality is at dynamic, playback frame rate at full. I tried decreasing the playback quality and frame rate and it still wouldn’t playback smoothly.
It plays fine for 5 seconds, then the 3-up in the viewer freezes, the audio cuts out for a second, and then all get is audio with my viewer and canvas frozen.
Cody Walters | Principal, Video Production
Small Screen Producer -
Playback should be set at Dynamic too…
Patrice Freymond
Senior editor
FCP Certified Trainer -
I set it to dynamic as well and it is still choppy. I’m watching my activity monitor while this is playing back, and under disk activity the data read/sec reads to a maximum of 35 mbs. Is this normal? I’m dealing with HD footage so I’m wondering if the disk I have is not good enough for reading a file with a high data rate. Would this have anything to do with it? How can I fix this? One of the clips’ bit rate is 118,239.
Cody Walters | Principal, Video Production
Small Screen Producer -
Where is the footage stored? What sort of drive? Playing back multiple streams of footage requires a fast connection…
Shane
GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def -
The footage is stored on my second internal drive in bay 2 of my mac pro. It is an internal SATA drive.
-
The footage is stored on my internal drive in bay 2 of my mac pro. It is an internal SATA drive.
-
Turn of Realtime scopes, if you have that turned on and displayed.
You might also want to populate the remaining drive bays and make a RAID to get more speed.
-
DVCProHD codec on a single drive? Top of my head, this codec’s data rate goes up to 100 Mb/s…
Maybe with an empty drive, maybe… but I doubt it would work with a drive half full. On an internal raid made of striped disks has a better chance.
hope this helps
Patrice
-
Thanks Patrice. The data rate for these three clips are around 14 MB/sec. When looking in the viewer outside Final Cut these clips are around 118,000 bit rate.
I’m typically doing a lot of projects like this…three cam shoot with HVX 200 with DVCPROHD. I’ve filled about 85% of bay 2 (where this footage currently is) and bay 3 is filled 90%. I’m about to run out and purchase another internal to fill bay 4, but before I do I’m wondering at this point if I should invest in a 8 bay RAID system like this from Cal Digit (https://www.caldigit.com/HDElement/). I’ll call them and ask my technical questions if this can support large data rate multiclips. But my question is…is this a typical setup for one who is run out of room on the internal bays.
Also, is there any other work around for me dealing with these clips?
Cody Walters
Mac Pro 2.26GHz 8 Core Xeon
16 GB 1066 MHz DDR3
Final Cut Studio 3
Panasonic HVX-200
Reply to this Discussion! Login or Sign Up