240
4.13.3
Face Detect (Optional)
Please make sure you are connecting to the smart network camera, otherwise you can not
use IVS function!
When camera detects human face, system can generate an alarm.
From main menu->Setting->Event->Face detect, the interface is shown as in Figure 4-107
Face ROI: Check the box here, system can enhance the human face display pane.
Log: Check the box here, system can record face detect log.
You can refer to the chapter 4.13.2.1 t to set other parameters.
Figure 4-107
4.13.4
Audio Detect (Optional)
Please make sure you are connecting to the smart network camera, otherwise you can not
use IVS function!
System can generate an alarm once it detect the audio input is abnormal or audio volume changes.
From main menu->Setting->Event->Audio detect, you can see an interface shown as in Figure 4-108.
Input abnormal: Check the box here, system can generate an alarm once the audio input is
abnormal.
Intensity change: Check the box here, system can generate an alarm once the audio vol ume
becomes strong.
Sensitivity: It refers to the audio recognition sensitivity. The higher the value is, the higher the
sensitivity is.
Summary of Contents for nvr4208-8p
Page 1: ...Dahua Network Video Recorder User s Manual V 2 7 0 ...
Page 160: ...145 Figure 3 4 3 5 5 NVR41HS W S2 Series Please refer to Figure 3 5 for connection sample ...
Page 171: ...156 Figure 3 18 3 5 19 NVR78 Series Please refer to Figure 3 19 for connection sample ...
Page 172: ...157 Figure 3 19 3 5 20 NVR78 16P Series Please refer to Figure 3 20 for connection sample ...
Page 173: ...158 Figure 3 20 3 5 21 NVR78 RH Series Please refer to Figure 3 21 for connection sample ...
Page 174: ...159 Figure 3 21 3 5 22 NVR70 Series Please refer to Figure 3 22 for connection sample ...
Page 175: ...160 Figure 3 22 3 5 23 NVR70 R Series Please refer to Figure 3 23 for connection sample ...
Page 176: ...161 Figure 3 23 3 5 24 NVR42V 8P Series Please refer to Figure 3 24 for connection sample ...
Page 177: ...162 Figure 3 24 ...
Page 243: ...228 Figure 4 89 Figure 4 90 ...
Page 244: ...229 Figure 4 91 Figure 4 92 ...
Page 259: ...244 Figure 4 110 Figure 4 111 ...
Page 260: ...245 Figure 4 112 Figure 4 113 ...
Page 261: ...246 Figure 4 114 Figure 4 115 ...
Page 263: ...248 Figure 4 117 Figure 4 118 ...
Page 355: ...340 Figure 5 55 Figure 5 56 ...
Page 356: ...341 Figure 5 57 Figure 5 58 Figure 5 59 ...
Page 367: ...352 Figure 5 73 Figure 5 74 ...
