Can Hik DS-7600 NVR record audio from its Audio Input RCA jack?

[BankBuster]

Hi, newbie, here,,,
I have a DS-7604 NVR and hooked up a powered mic to its input RCA jack, but I can't seem to get audio to record, or even work in live view mode. I think I may have assumed too much. Can this NVR record audio from its local RCA jack on the NVR? Right now I have two Hik 4mp turrets working fine for video only, but they don't have provisions for external mic connection. I now suspect I'll need to change out the turret at the front door with a camera with audio inputs. I just want to record front door audio in case of an incident with scammers or maybe a B&E,,, I'm not interested in trying to answer the door remotely with 2-way audio... Thanks for your help, Brad
PS, I assumed if the NVR had audio in, and it could transport this to a remote phone, that all the hardware was in place to record as well. It looks like more firmware is needed in the NVR. Imho.

 

[Fruit]

The RCA jack on the NVR is for LIVE 2 way audio only. If you want audio recording you need an IP camera that supports audio (either through an external mic or a built-in Mic)

But the RCA jack on a DVR (analog/HD TVI system) will work for audio recording though, so I do see where the confusion comes from

The reasoning I believe is the way NVR and IP cameras record their data...IP camera process the video/audio compression on the camera side, then sends to the recorder to write to the hard drive.

While DVR analog systems the video/audio compression is done at the DVR side then gets written on the hard drive.

 

[BankBuster]

The RCA jack on the NVR is for LIVE 2 way audio only. If you want audio recording you need an IP camera that supports audio (either through an external mic or a built-in Mic)

But the RCA jack on a DVR (analog/HD TVI system) will work for audio recording though, so I do see where the confusion comes from

The reasoning I believe is the way NVR and IP cameras record their data...IP camera process the video/audio compression on the camera side, then sends to the recorder to write to the hard drive.

While DVR analog systems the video/audio compression is done at the DVR side then gets written on the hard drive.

Thanks for your reply,
Brad