any suggestions? Thanks.Building Video Server Looking for the right Capture Card.
Building Video Server Looking for the right Capture Card.
Looking for 4 channel D1(640X480) quality capture card, and of course needs to work with zm any suggestions? Thanks.
any suggestions? Thanks.
Lots... But first, real time, or non-real time? (1 chip or 4) Also, you do know that 640x480 is a lie, right? NTSC is interlaced, so a single frame is actually 640x240 which looks ugly. Most people capture at 320x240. However, you can capture at 640x480 and if the cam is good/fast enough the interlacing may not be too bad.
Hi Lee,
Thanks for the reply, Well this is for 6 analog cams, (have not decided on those yet) and no, I did not know about the lie, all I know is that I'm working with the PV-149 from Bluecherry as soon as I scale up, the image goes to a point of no recognition of subject. Through the forum I find the resolution is a function of the capture card and not so much the camera. Could you possibly point me in the right direction? does not have to be real time more intrested in recognition of subject, and I can olny presume 4 chips is better then one. I'm thinking for the shop area 6 vari-focal dome cams.
MB: AIMB-562
CPU: 3.0 GHz Intel LGA 775 Core Duo
Chipset: Intel 945G
Memory: 2GB
Bios: AMI
Ethernet: Single 10/100/1000
HD: Single 2.5" 2GB Sata Flash Drive.
OS: Minimalistic PCLinuxos ( the idea was to nfs out to a remote nas)
Thanks for the reply, Well this is for 6 analog cams, (have not decided on those yet) and no, I did not know about the lie, all I know is that I'm working with the PV-149 from Bluecherry as soon as I scale up, the image goes to a point of no recognition of subject. Through the forum I find the resolution is a function of the capture card and not so much the camera. Could you possibly point me in the right direction? does not have to be real time more intrested in recognition of subject, and I can olny presume 4 chips is better then one. I'm thinking for the shop area 6 vari-focal dome cams.
MB: AIMB-562
CPU: 3.0 GHz Intel LGA 775 Core Duo
Chipset: Intel 945G
Memory: 2GB
Bios: AMI
Ethernet: Single 10/100/1000
HD: Single 2.5" 2GB Sata Flash Drive.
OS: Minimalistic PCLinuxos ( the idea was to nfs out to a remote nas)
I never try for 640x480 on analog as I know it has now more information than 320x240, so I can not help you there. However, single chip per port solutions tend to have better pictures than switched solutions. That said, the ProVideo cards are quite good, so if it is not good enough for you, consider the camera or cables as a possible problem. Personally I would go with a solid 8 port 8 chip 240fps card. Of course since we have a factory build those to spec for us, I am partial to them. 
As an example, here is 2 screenshots of a 16 cam system with 2 8 port 8 channel cards. The difference is cameras.
http://www.hal-pc.org/~leesharp/Screen1.png
http://www.hal-pc.org/~leesharp/Screen2.png
In shot 1, the first is a box cam, and the rest are all dome cams. Some were from the existing installation, some replaced by the owner and some ours. However, they all look alike from the outside, and have the same paper specs.
In shot 2, there are several old cams. The 2 side door cams are nice new IR bullets and identical. However, the cable run for one goes through the cable TV distribution room.
Some big differences... From little things.
The varifocal are nice, but we use very few. Generally a nice assortment of 3.6 and 9s do the job.
As to your system plans, the network storage is not a good plan. Not unless you like repairing mysql on a daily basis when someone tries to view all the cams and the database connection drops. If it is a space/power/heat thing, go eSATA with a big drive. 500 -750 gig minimum for that rate of capture.
As an example, here is 2 screenshots of a 16 cam system with 2 8 port 8 channel cards. The difference is cameras.
http://www.hal-pc.org/~leesharp/Screen1.png
http://www.hal-pc.org/~leesharp/Screen2.png
In shot 1, the first is a box cam, and the rest are all dome cams. Some were from the existing installation, some replaced by the owner and some ours. However, they all look alike from the outside, and have the same paper specs.
In shot 2, there are several old cams. The 2 side door cams are nice new IR bullets and identical. However, the cable run for one goes through the cable TV distribution room.
Some big differences... From little things.
The varifocal are nice, but we use very few. Generally a nice assortment of 3.6 and 9s do the job.
As to your system plans, the network storage is not a good plan. Not unless you like repairing mysql on a daily basis when someone tries to view all the cams and the database connection drops. If it is a space/power/heat thing, go eSATA with a big drive. 500 -750 gig minimum for that rate of capture.