Inserted in the red jack I can not hear the other voice, inserted in the blue jack each other can not hear my voice. I was HP-W7 system. Thank you!
External camera audio cable, usually the camera comes with the microphone line. The specific steps are as follows: . the audio cable inserted in the desktop behind the red audio jack (mic microphone). . click the lower right corner of the screen volume small icon. . in the pop-up volume control options in the election properties. . in the pop-up properties in the choice of recording, click OK. . in the pop-up recording control click to select the microphone.
Simply put, the cable middle head for 2 cable connection, the cable terminal for the entry and exit, up and down the pole, understand it
450V is the standard value. 750V is the highest value. Is the limit.