Recent content by ABCcam

It's a 'Lapel type' mic - small size with std 3.5mm jack. It works as a mic input on a PC.

What is the trick to get an external mic to work with RTSP on an HIkvision camera (DS-2CD2645FWD-IZS) It has 3.5mm audio input and output ports. Connected a standard lapel type mic with 3.5mm jack to audio input. Set Video Type to Video&Audio on main and substream. Audio Encoding is G.711ulaw...

Thank you all for inputs. Thanks to suggested settings and tweaking which works with what, we are now happy with the cam settings. There still is a slight bit of 'ghosting'/ 'object image fluid swim', but it is not too bad - acceptable ;) This is definitely something which HIKvision needs...

Yes it was also present with 1080 Dedicated AMD Ryzen server user for streaming. Tensor flow AI used for Bird & animal ID's. If this was affecting the image then it would freeze continuously in the day as the bird activity and consequent AI ID activity is very high. The freezing can be seen...

Hi @dimammx My experience and opinion of Dahua cams is not flattering - i have two that are gathering dust simply because they are not worth using..

Thank you for the input - much appreciated as i am almost at the point of returning this cam. To clarify - the real issue to resolve is image quality / video stability at night with colour image with lighting from diffused LED floodlights. So far: Reducing the ghosting results in...

How do you change it from 8MP to 5MP? The pixel frame extents can be changed but that does not change the fact that it is a 8MP sensor. Why would one even want to do that? - buy a ferrari and run it at 20mph :rolleyes: As weird of an idea it may be i have already tried that - set the frame size...

Exposure 1/25 is used as color day view is required. 1/50 or higher is too dark and/or requires too much gain which adds to noise. Physically diffused LED flood lights are used (the lighting intensity is very low). Agreed that cheap LED's do have their issues of flicker and other weird colours...

Settting at night: DNR Off, WDR Off, HLC Off Exposure 1/25, Gain 50 The ghosting/Halo does appear less. Only problem is the old issue of flickering and freezing is back. Exposure 1/3, Gain 40 - no flickering, but freezing still occurs. Turning on DNR Normal 20 reduces freezing at expense of...

I agree as regards your recommendation on CBR & I Frame rate, although neither of these settings have any effect on the ghosting/Halo during day. For streaming i prefer constant bit rate. VBR & i Frame interval was set at 5 as recommended by HIKvision support to remove flicker at night. During...

Thank you for your input. DNR is off during day. At night it has to be used to remove grainy picture. WDR is necessary to handle the light variation. Without WDR or HLC the picture is far too harsh with too many shadows / bright spots. Light also varies through day / season / weather - WDR or...

Current 'generic' settings that work for day & night. There are variations that can be subjectively considered better for day or night, but none remove the 'ghosting' / 'halo' effect At night DNR is required to remove grainy picture. For day the DNR can be turned off but does not remove the...

This probably explains why this exact same artefact occurs on many cheap knock-off cams. pity that HIKvision decided to create a cam with the same bad tech combination. This issue basically kills any benefit of 8MP/4K where a lot of motion is expected and picture quality is extremely important.

This has been discussed on various other posts regarding 8MP Acusense issues. DS-2CD2686G2-IZS - 8MP varifocal has a bad ghosting issue which is most noticeable at night, although it occurs all the time. If any objects moves then the image within the object does not move together with the edges...

The real problem that is still an issue is the 'Ghosting' - for lack of a better term. This is an image processing artefact which kills all the benefit of 8MP/4K. It is most obvious at night although it is always present. I have never seen this previously on 4 & 5MP HIKvision cams. It is the...