Datapath VisionSDI2 Latency

[SkyIsFalling]

Hi,

 

I already got quiet a bit of support from Dataton, but i wanted to

share my experience with the Datapath VisionSDI2 Grabbercard with you

 

I'm using it with Watchout 5.31

on a I5, P8P67, SSD, 8gb Ram 64 bit System.

 

Running 1080i 25 directly into the Server from a Camera,

watching it on a TFT i get about 200 ms of Delay.

This seems to be a bit much, but i couldn't find any settings

to tweak it.

 

Drivers, Firmware and Software is all up to date.

 

Has anybody a hint for me to solve the Problem?

 

Thanks

 

Roman

[Walter]

Hi Roman,

You're not deinterlacing your signal I presume? If so, don't, but choose a progressive setting of camera in stead. If that isn't the case, I wouldn't have a clue. 200ms does sound excessive.

[SkyIsFalling]

No Deinterlacing is happening. Also I tried 720p, with the same Result.

 

I made a short videoclip with 50 fps, which each frame numbered.

filmed it, and put the Grabberwindow next to the Video. Then

I took a snapshot with my photocamera, and the Difference is

repeatable 9 Frames.

 

Running out of Ideas...

[SkyIsFalling]

Hi, after some more testing, shame on me. 

I've tried anothed Camera and now the Delay is fine.

Seems that Panasonics smaller Cameras

a have notiable delay on their SDI Output, didn't know that.

 

But still, it only works in 720p 50. With 1080i 50, I can't get Watchout to Deinterlace the Signal.

The Vision Window with BOB Deinterlacing looks fine.

 

Thank you

 

Roman