Mic Background Noise on IP Camera DIY Install.

[bob_4323 0]

Hi,

 

Re: Mic Background Noise on IP Camera DIY Install.

 

I am getting a buzz/throbbing noise from a separate microphone - which is plugged into my IP camera, I can hear sound in the supplied CMS software, but it is mostly obscured by the noise - it is quite loud, any ideas why would be helpful.

 

I have purchased one of these:

 

720p Pin Hole IP Camera

http://www.elpcctv.com/720p-mini-pin...tion-p-46.html

 

and one of these:

 

CCTV Camera Mic.

http://www.ebay.co.uk/itm/310932069240?_trksid=p2057872.m2749.l2649&ssPageNa me=STRK%3AMEBIDX%3AIT

 

I have the microphone's white plug, plugged into the white connector on the Camera (yes the camera has one of these), a POE connector feeds power - first to the Mic, then on to the camera (black and red connectors) - I have an image, but cant seem to post it up.

 

I have tried just laying the mic. lose on a surface (it was pushed into a hole) - at least a foot away from the camera, to rule out interference. I have also put my finger over the mic - but that too made no difference.

 

Any pointers would be helpful.

[bob_4323 0]

We thought the cheap power supply might be at fault, but we simply used a DC battery pack to power the mic, but still had the buzzing.

 

We had another white half golf ball dome mic (a KJ-803) - which was originally supplied with the Camera - which works fine, so it the mic.

 

I assume CCTV camera mics are not all the same, and you need a specific type of mic to work with an IP camera (assuming you want to feed the audio shared with the video - down the CAT45 cable) ???