Download file sizes in play back

[Harj]

Hi

Recently installed had a Hikvision DS-7604NI-K1/4P with two DS-2CD2385FWD-I and two DS-2CD2355FWD-I turret cameras. I noticed in the playback area that files are 1GB per hour on the 5MP camera however on the 8MP cameras each file is still 1GB but covers circa 3 hours. All codec and frame rate settings are the same, does anyone know why the 8MP seems to compress more footage into 1GB?

Thanks

Harj

 

[Phil]

Hi, I've not seen this reported before.
If you are correct, then I can't explain it.

Are you sure that as well as selecting Video Encoding as h.265, that H.265+ is set to ON for all the cameras?

 

[Harj]

attached are the screenshot from the 8 and 5 MP cameras.

 

[Phil]

Are the scenes very different?
Scene complexity will make a difference to the bandwidth storage used.
I was testing recording a 5MP camera to microSD the other day and was surprised that calculations indicated I'd be able to record to the card for 83 days - the camera was laying on my desk pointing at a plain painted wall indoors with zero activity.

 

[Harj]

Yes they are the front scene looks out onto a road with a car passing once an hour or so, whilst the garden camera scene is very still with very little movement.

Perhaps that would explain it?