Video setting on camera

tekguru

tekguru

n3wb
Oct 7, 2022
26
1
Manchester, UK
A quick question guys, our ColourVu cameras (and NVR) were set up by a third party installer. The cameras were set up on medium quality video and bitrate 2560. Can it cause any problems if I change the settings to 4096 bitrate and video quaity to highest?

I've changed one of the cameras settings and left the NVR as it is.

This has resulted in a great improvement on the camera image (checked via RTSP in VLC), and I'm now thinking I should change the NVR as other cameras.

So is there any reason not to make the changes?
 
You should make all settings in the camera itself. It will then backfeed the settings to the NVR. Changing the settings in the NVR can sometimes not talk to the camera correctly and you get issues as they are then conflicting.

Which NVR model do you have? NVRs are rated for a certain bandwidth, so you need to make sure it can handle the higher bitrates of all your cameras. Generally the higher the bitrate, the better the quality. 2560 is pretty low.
 
Okay I should have mentioned I guess :) The NVR is model DS-7608NI-K2 / 8P, the three cameras we have are: DDS-2CD2087G2-L(U). The NVR seems to be handling the camera I've changed (i.e. it still looks okay in the HIK Connect app).

Are there any recommended settings?
 
OK that is more of a budget NVR, but for 4 cameras you should be ok.

  • Up to 8-ch IP camera inputs
  • H.265+/H.265/H.264+/H.264 video formats
  • Up to 2-ch@8 MP or 4-ch@4 MP or 8-ch@1080p decoding capacity
  • 1 HDMI and 1 VGA interfaces: both interfaces support independent video output
  • 2 SATA interfaces for HDD connection (up to 10 TB capacity per HDD)
  • Up to 80 Mbps incoming bandwidth
  • Plug-and-play with 8 power over Ethernet (PoE) interfaces
 
Humph it cost us enough. We do only have three cameras though. I've just checked the settings on the NVR for each of them, and they all vary. They are set as:

nvr_camera_settings.jpg

The cameras again look to differ and are set as per:

camera_settings.jpg
 
It certainly wouldn't hurt to match them, but you want to make every setting change in the camera - do not make them only in the NVR.

If you truly want the best image, take it off variable and make it constant bitrate. And then up the bitrate to 4096 or 8192 if the NVR accepts it.
 
Okay thanks for that, I've increased the settings to use a constant bitrate (8192) and harmonised the settings between cameras and the NVR, all seems okay so far. I'll monitor over the next day or so....
 
I think you should see a big improvement in picture quality! And 3 cameras you should be fine. If you add more, the NVR will end up dropping bitrates to keep it below the 80Mbps bandwidth.
 
tekguru said:
Fingers crossed, I'll post back if I do get any issues :) Thanks for the assistance.
Click to expand...
You shouldn't have issues. The only logical reason someone would drop resolution on purpose would be if the NVR doesn't have a big HDD. I recommend 1TB per camera.so an 8 camera nvr would have an 8TB and their 16 cameras would have 2 - 8TB, etc.
 
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