Note:
- Make sure that your camera supports audio function.
- External active microphone.
- Client software such as iVMS-4200 & iVMS-4500
- Some cameras have internal microphone such like DS-2CD2412F-I (W).
- Active microphone needs external power supply.
Steps:
1) Take DS-2FP2020, for instance. Connect Red wire with Positive power supply; connect White wire with Audio in interface; and then connect Black wire with Negative power supply and Audio GND interface together.
2) In the camera web interface, go to Configuration - Video/Audio and set the video type to Video&Audio, and then go to Audio tab to set audio input to LineIn. If needed, you may enable environmental noise filter.
3) Go to Live View tab, enable the audio output by clicking 🔉 icon and adjust its volume.
4) Connect the camera with a NVR, and make sure its footages have been stored into the NVR.
5) In the NVR web interface, go to Playback tab, enable the audio output by clicking 🔉
6) You may realize audio live view & playback in iVMS client software as well.
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