Max Bitrate
- Thread starter RBW
- Start date
I have plenty of spare storage. So this should be ok.
bigredfish
Known around here
I believe different DVR/NVRs have different max bitrates. My home DVR has a max of 6144, while the new 4208P-4KS2 NVR's I just installed show 9216 kbps. I see my Axis cams show a max of 24500 kbps!
Generally many here will advise running low FPS and bitrate but like you I have no shortage of disk space or bandwidth concerns so I tend to run most of my 2MP cams at 8192 kbps and 30 FPS. There is a clear difference in video quality with 4X the bitrate.
Generally many here will advise running low FPS and bitrate but like you I have no shortage of disk space or bandwidth concerns so I tend to run most of my 2MP cams at 8192 kbps and 30 FPS. There is a clear difference in video quality with 4X the bitrate.
the NVR is going to have a maximum bitrate it can handle as a whole. you will need to divide this into your cameras as you see fit. the sum of all the cameras cannot exceed this. and i agree to max it out! storage is cheap
Seems a bit strange that the default setting is so low.
When I read the NVR5216 manual and play with bit rate settings I am finding that if I use VBR quality 6 and max out the bit rate to highest allowed the camera will send that bit rate even on an image that is static, seems odd as I would expect VBR to look at trying to maintain quality at lowest bit rate possible not to exceed the max setting. I don't see way to tell camera to try and save bandwidth unless the motion dictates the max bit rate.
From manual:
In VBR mode, the video quality changes
according to the bit stream value. But its max value is
near the specified value.
Oddly I can have a 2MP, 4MP and 8MP camera all with VBR and very static images all driving over 6mb/s seems very odd.
From manual:
In VBR mode, the video quality changes
according to the bit stream value. But its max value is
near the specified value.
Oddly I can have a 2MP, 4MP and 8MP camera all with VBR and very static images all driving over 6mb/s seems very odd.