Hikvision DS-2CD2D25G1-D/NF 3.7MM User Manual

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It is a switch of the device audio output. When it is disabled, all the device audio cannot output.

The audio output display varies with the device modes.

4.3.4 Environmental Noise Filter

Set it as OFF or ON. When the funcon is enabled, the noise in the environment can be ltered to

some extent.

4.4 Two-way Audio

It is used to realize the two-way audio funcon between the monitoring center and the target in

the monitoring screen.

Before You Start

●

Make sure the audio input device (pick-up or microphone) and audio output device (speaker)

connected to the device is working properly. Refer to specicaons of audio input and output

devices for device connecon.

●

If the device has built-in microphone and speaker, two-way audio funcon can be enabled

directly.

Steps

Click Live View.

Click on the toolbar to enable two-way audio funcon of the camera.

Click

, disable the two-way audio funcon.

4.5 Display Sengs

It oers the parameter sengs to adjust image features.

Go to Conguraon → Image → Display Sengs .

4.5.1 Scene Mode

There are several sets of image parameters predened for dierent installaon environments.

Select a scene according to the actual installaon environment to speed up the display sengs.

Image Adjustment

By adjusng the Brightness, Saturaon, Contrast and Sharpness, the image can be best displayed.

Network Camera User Manual

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Hikvision DS-2CD2D25G1-D/NF 3.7MM 2MP Network Covert Camera 3.7mm Lens