If i had known that an NVR is a dumb unit apposed to a DVR i would never have bought one.
I now lean that it can't record audio, even though it has an audio in jack on the rear, this is driving me nuts too, first it don't detect motion, now it won't record audio from the input jack.
Why could the NVR not have been designed like a DVR? and record motion and audio on board. Don't tell me its due to cost, because it cost me a damn site more than my SDI system did (SDI is a digital stream too like ip, but without the internet hype)
I feel robbed because after spending a fortune on the NVR thinking it does everything my SDI dvr did, so thinking that cheap HD cameras would work (which they do for picture clarity) I had no idea that NVR boxes are dumb units and rely on the camera to do all the work. a cheap PC could cost less than an NVR and have the ability to capture audio and motion with the right software, so why can't a Hikvision NVR?