DS-2CD2732F-IS makes a thumping sound on audio during daylight operation, not at night

Coldair · Apr 23, 2019

firmware is V5.2.5 build 141201 here is a little clip of the audio
any ideas

StewartM · Apr 25, 2019

Is the device powered via a PoE injector or NVR?

Coldair · Apr 26, 2019

StewartM said:
Is the device powered via a PoE injector or NVR?

it's powered by a 12 volt, 10 amp power supply that also powers 2 other cameras and 2 other IR panels and they are fine

StewartM · Apr 27, 2019

The firmware is fairly old. I suggest you upgrade the firmware first.
3M P IP66 Network IR Dome Camera

US version only! Re: alastairstevenson's post below.

alastairstevenson · Apr 27, 2019

StewartM said:
The firmware is fairly old. I suggest you upgrade the firmware first.

Agreed, very old.
But first check it's not a China region camera by looking at the serial number - SADP or the web GUI - and confirming it does not have the letters CCCH embedded in it or it will likely get bricked.

Coldair · Apr 27, 2019

alastairstevenson said:
Agreed, very old.
But first check it's not a China region camera by looking at the serial number - SADP or the web GUI - and confirming it does not have the letters CCCH embedded in it or it will likely get bricked.

looks like it is chinese DS-2CD2732F-IS20150807CCCH534623548

StewartM · Apr 27, 2019

Are you able to change the audio compression via the webGUI? If it's an option, try switch between G.711 / G.726.
As a last resort it may be worth trying a separate power source.

alastairstevenson · Apr 27, 2019

Mike Dunne said:
looks like it is chinese DS-2CD2732F-IS20150807CCCH534623548

Yes, Chinese. Best not to do a firmware upgrade ...

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DS-2CD2732F-IS makes a thumping sound on audio during daylight operation, not at night

Coldair

StewartM

Getting the hang of it

Coldair

StewartM

Getting the hang of it

alastairstevenson

Coldair

StewartM

Getting the hang of it

alastairstevenson