F3105 User Manualusage of this codec will cause frame-rate decreasing.Off: Select Off, audio file won’t be transmitted by IP CAM. Audio Mode: You can select Full duplex or Half duplex.Full duplex: Select it for simultaneous communication in both direction between theconnected administrator and IP CAM. It means both parties can speak and be heard atthe same time.Half duplex: Select it for communication in both directions, but only one direction ata time (not simultaneously). It means one party begins receiving a signal, it must waitfor the transmitter to stop transmitting, before replying. Therefore, once one partyspeak, he can’t hear any voice from the other party, just like the communication byradio set. Video Clip Format: Select RECORDING compression format H.264 or MPEG-4.MPEG-4: MPEG-4 has the advantage of sending a lower volume of date per timeunit across the network (bit-rate) compared to Motion JPEG and therefore provides arelatively high image quality at a lower bit-rate (bandwidth usage).H.264: H.264 provides higher compression rate than MPEG-4. Thus, H.264 candecrease the bandwidth usage and further apply on 3G. However, H.264 will occupymore system resources than MPEG-4. As long as the operating system appearsoperating difficulties under H.264 format, please change to select MPEG-4. LED Threshold: Select LED light On, Off, Auto, or Alarm.On: Select On will led always work.Off: Select off will disable led.Auto: Select Auto will appear two thresholds, which one is Bright andthe other is Dark, and you can adjust the threshold for led Auto-On and Auto-Offrespectively. The Bright value higher, the led auto-off more easily in the brightenvironment will be. The Dark value higher, the led auto-on more easily in the darkenvironment will be. Both values range from 0 to 100.Alarm: Select Alarm to start the LED alarm function.Note: Concerning how to set up the LED alarm function, please refer to the CHAPTER 9.7. Overlay:Text Overlay: Some information can be showed on the display screen, such as Date /Time and user-defined text. And the background color can be chosen.Privacy Mask: A specific area of the video image can be covered.8.2.2 H.26426Setting-BasicCamera