Posted: Fri Nov 06, 2009 4:10 pm
I'm using two of the 8 channel PV-981, each channel is about 2.5fps.
From there you lose frames each time it changes from one came to the next. With four cameras you will lose at least 4-8 fps from what I have seen. I suppose it all comes down to how many FPS is needed for your application.
Do you need full 30fps live video?
If so, you'll need a vast amount of storage and higher priced cards. Storage is a concern. at 2.5fps on record at 320x240 in color, I use 2tb per 40 days or so for my 16 cameras.
From there you lose frames each time it changes from one came to the next. With four cameras you will lose at least 4-8 fps from what I have seen. I suppose it all comes down to how many FPS is needed for your application.
Do you need full 30fps live video?
If so, you'll need a vast amount of storage and higher priced cards. Storage is a concern. at 2.5fps on record at 320x240 in color, I use 2tb per 40 days or so for my 16 cameras.