NEED HELP!! VITC/LTC issues on HDCAM-SR at DVinfo.net

Scott Warren · September 9th, 2008, 09:30 AM

I am having some problems with our VITC and LTC TC not matching up when laying back to HDCAM. For example: when I layback something to the deck my LTC will read 01:05:06;00, however, my VITC reads something like: 00:03:06;00.

This causes major problems for me because I have to clone tapes that are deadline sensitive to the Panasonic D5 as well and it's not pulling accurate timecode. The weird part is, I haven't changed anything of the steps of my process...I am thinking somewhere along the way a system setting was changed.

Basically, I need the VITC/LTC to match, and I can't seem to figure out how to eliminate this problem. ANY INSIGHT???

Matt Mullins · September 9th, 2008, 05:35 PM

I take it obvious stuff like timecode is set to regen and from internal source?
The timecode section is always the first look when LTC and VITC don't match. The next is how the tapes, you're laying back to, have been black + burst/striped?

What deck are you using to layback?
Matt

Scott Warren · September 10th, 2008, 01:09 PM

Hi Matt,

I figured out the problems. It actually turned out to be an issue when cloning from a Panasonic D5 to HDCAM-SR.

The issue with TC I am running into right now, is cloning TC from HDCAM-SR to Panasonic D5. Do you have any experience doing this?

Luke Tingle · September 10th, 2008, 02:43 PM

it should be straight forward, analog LTC to analog LTC and set you're D5 to EXT regen. Unless you're going from 23.98->59.94(then you're SOL).

Scott Warren · September 10th, 2008, 02:52 PM

I wish it were as simple as that.

Here are the D5 settings:

EXT LTC
SLAVE
REC RUN
MOMNT

However, I keep getting a error message saying that EXT LTC NOT READ. I really don't know what else it could be really. I am waiting for a call from Panasonic still...I have an hour and half to figure it out. I've consulted the manual and other forums several times as well.

Luke Tingle · September 11th, 2008, 07:51 AM

Assuming the D5 is actually recieving LTC in the correct frame rate (59.94 of 23.98) then I would say there is a problem with the deck itself.

Matt Mullins · September 11th, 2008, 03:42 PM

Are you regenerating TC via the xlr's or embedded sdi? Might be worth trying both. If you are cross converting TC there is an option in the srw5500 (if you're using this deck) for TC conversion between different frame rates;but then it can get complex.

September 9th, 2008, 09:30 AM	#1
Scott Warren New Boot Join Date: Jan 2008 Location: Studio City, CA Posts: 7	NEED HELP!! VITC/LTC issues on HDCAM-SR I am having some problems with our VITC and LTC TC not matching up when laying back to HDCAM. For example: when I layback something to the deck my LTC will read 01:05:06;00, however, my VITC reads something like: 00:03:06;00. This causes major problems for me because I have to clone tapes that are deadline sensitive to the Panasonic D5 as well and it's not pulling accurate timecode. The weird part is, I haven't changed anything of the steps of my process...I am thinking somewhere along the way a system setting was changed. Basically, I need the VITC/LTC to match, and I can't seem to figure out how to eliminate this problem. ANY INSIGHT???

September 10th, 2008, 01:09 PM	#3
Scott Warren New Boot Join Date: Jan 2008 Location: Studio City, CA Posts: 7	Figured out Layback issue Hi Matt, I figured out the problems. It actually turned out to be an issue when cloning from a Panasonic D5 to HDCAM-SR. The issue with TC I am running into right now, is cloning TC from HDCAM-SR to Panasonic D5. Do you have any experience doing this?

September 10th, 2008, 02:52 PM	#5
Scott Warren New Boot Join Date: Jan 2008 Location: Studio City, CA Posts: 7	EXT LTC not cloning from Source Deck I wish it were as simple as that. Here are the D5 settings: EXT LTC SLAVE REC RUN MOMNT However, I keep getting a error message saying that EXT LTC NOT READ. I really don't know what else it could be really. I am waiting for a call from Panasonic still...I have an hour and half to figure it out. I've consulted the manual and other forums several times as well.

September 9th, 2008, 05:35 PM	#2
Matt Mullins Regular Crew Join Date: Dec 2006 Location: Cardiff, United Kingdom Posts: 54	I take it obvious stuff like timecode is set to regen and from internal source? The timecode section is always the first look when LTC and VITC don't match. The next is how the tapes, you're laying back to, have been black + burst/striped? What deck are you using to layback? Matt

September 10th, 2008, 02:43 PM	#4
Luke Tingle Regular Crew Join Date: Oct 2007 Location: Atlanta, GA Posts: 88	it should be straight forward, analog LTC to analog LTC and set you're D5 to EXT regen. Unless you're going from 23.98->59.94(then you're SOL).

September 11th, 2008, 07:51 AM	#6
Luke Tingle Regular Crew Join Date: Oct 2007 Location: Atlanta, GA Posts: 88	Assuming the D5 is actually recieving LTC in the correct frame rate (59.94 of 23.98) then I would say there is a problem with the deck itself.

September 11th, 2008, 03:42 PM	#7
Matt Mullins Regular Crew Join Date: Dec 2006 Location: Cardiff, United Kingdom Posts: 54	Are you regenerating TC via the xlr's or embedded sdi? Might be worth trying both. If you are cross converting TC there is an option in the srw5500 (if you're using this deck) for TC conversion between different frame rates;but then it can get complex.