Intercom feedback?

G

gnikoli

n3wb
Jan 17, 2016
27
2
I was thinking about adding a speaker to a Hik DS-2CD2542 mini dome with internal microphone install. For instance, mount the speaker just below the camera and tie it all together for 2-way communication, but then I was thinking, would there be a problem with the sound from the speaker being picked up by the camera's mic? Is it possible to integrate a speaker with that camera and DS-7608NI NVR to work as a video intercom?
 
no feedback issues because it works like a walkie talkie. push to talk
you can't just hook up a speaker, you'd need an amplifier too. all in all it doesn't work like the movies.
 
tangent said:
no feedback issues because it works like a walkie talkie. push to talk
you can't just hook up a speaker, you'd need an amplifier too. all in all it doesn't work like the movies.
Click to expand...

Thanks tangent. So the NVR audio out is not an amplified signal? I was hoping there was some way it would all work with iVMS-4500 app.
 
gnikoli said:
Thanks tangent. So the NVR audio out is not an amplified signal? I was hoping there was some way it would all work with iVMS-4500 app.
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check the specs/manual I'm not 100% sure, the NVR output could be. Camera audio outputs aren't.
 
tangent said:
check the specs/manual I'm not 100% sure, the NVR output could be. Camera audio outputs aren't.
Click to expand...

I had and it looks like NVR does, which is why I was optimistic proposed setup would work, but will be bench testing to make sure. Thanks again for reply.
 
gnikoli,
Yes, bench testing is wise.
Technically, it is two-way audio.
Practically, it sucks.
Push To Talk (PTT) is simple & easy when the PTT button is on the side of the walkie talkie.
When it's an icon on a smartphone, it's a different matter.
And it's PTT followed by PTL (Push To Listen)

And there's the IP delay. The audio is not real time....

Bench test....
 
Thanks Fastb. I had a SkyBell for about two weeks. That sort of functionality is what I really want, not PTT, but SkyBell didn't deliver the goods and I have heard similar complaints about Ring. Surprised there is not an out-of-the-box solution like that at Hik-like prices and which will integrate with Hik gear. Or is there?
 
nayr reports success with a VoIP solution. Not cam based. and not an out-of-the-box straightforward solution, iirc
 
gnikoli said:
I had and it looks like NVR does,
Click to expand...
double checked specs for you, audio output IS NOT amplified.

As far as voip the simplest thing you could do would be plug a doorbell fon into an FXO port on a voip device that you can program adequately
 
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