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dropped frames on capture only
Hello there, I have the following set up:
Mac Pro – Two 3.0GHz Quad Core, 8GB Ram, NVIDIA GeForce 8800GT 512MB GDDR3, 320GB 7200-rpm Serial ATA 3Gb/s, Five USB ports, Two FireWire 400 ports and Two Firewire 800 ports; 1.5TB internal RAID
Latest versions of Mac OS, X QT, and FCP (6.0.6)
My problem is that I am capturing DVCAM footage from my DSR-11 deck (originated from Sony DSR450). Have also tried capturing from a DSR-1500ap deck via the fw400 and fw800 ports on the front of the mac and I am getting dropped frames on capture.
I have the capture scratch set to the 1.5TB internal raid
I have tried and double checked every setting from reading the many posts on dropped frames – but to no avail.
The DVCAM footage was recorded without proper timecode (time of day code only). As such – I have also attempted to capture the footage as “non controllable device” – but am still getting the dropped frames.
Could the fact that there is no timecode – only “time of day” be causing this issue?
Many thanks for your time.
Paul. -
3 Replies
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Time of day timecode is still timecode.
How does the drop occur? Is it at a timecode break? Or more intermittent? How much can you record before the drop occurs?
Have you ruled out the tape? That is – are you able to capture other tapes?
Also – is there any other device operating on your firewire bus?
And – one more idea – are your settings correct? That is, the proper easy setup for the footage (DV-NTSC, etc.)
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Thanks for the reply Bill.
I have got “Abort Capture on Dropped Frames” ticked.
I have got on timecode break set to “warn after capture”
I am capturing by the “capture now” button (no logging etc)The drop does not occur at a timecode break.
It is intermittent. For example, got dropped frames after ~ 5 mins.
I then rewound the tape and started again and it captured for ~ 20 mins before getting dropped frames again.I have ruled out the tape – as I have tried this on numerous tapes. However – the one thing they have in common is “Time of Day” code rather than continous timecode.
The only devices connected to my mac are the deck and a 23″ Apple Cinema display – via firewire and usb.
I have double checked the easy setup and all seems ok – pal etc.
Any advice is appreciated as I am at a loss as to the cause.
Thanks.
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Hello,
As an update to this issue – I bought:
G-TECH G-RAID GEN4 1TB EXTERNAL DRIVE
Sonnet Allegro Express FireWire PCI-E CardConnected my deck and the external drive to the Sonnet PCI-E card.
Tried capturing to the internal drives – dropped frames again.
Changed the capture scratch to the new external drive – capturing successfully!
In summary – I cannot capture to the internal raid but I can capture to the external drive.
I have ran the internal drives through disk warrior and all is showing up as ok.
Can anyone shed any potential light on the cause of this?
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