What affects recording quality?

[lomex]

Hello C-MOR Community,

I have some questions regarding the quality of recordings.

I use the free VM for testing. All works fine and I could integrate my IP cameras. Now i figured that sometimes the recordings are a little jumpy. But this is sometimes only. Mostly the recordings are great and very fluent.

What can cause this jumpy, only sometimes occurring recordings?

Is this a virtual server problem or a network problem?

Can it simply not happen on the appliance version?

Thank you,

Lomex

[michaelr]

Hi Lomex,

There are many different things and parameters which can affect the video quality:

- A in general to high frames per second rate can cause jumpy recordings
- Too low bandwidth in the network. This mostly occurs when nightly backups are running
- Not enough CPU performance from the server system in virtual environments
- General low budget switches cause bad video quality

Make sure the server on which a Video Surveillance VM runs has enough computer power free for the VM. Video Surveillance occupies in general high compute power and network bandwidth.

If a network bottle neck causes problem you typically can see this in the System Status page on the green line for incoming network traffic. If you see a flat line far under 100mbit/s on a 100mbit/s network then you know not enough data comes either through the network or the camera does not support such a high frame rate.

I hope this helps a little to find the problem!

Regards,

Michael