What are the three audio jacks red, green and blue on the back of the computer used for?

The blue audio hole is used to connect external audio equipment, which can input audio into the computer; the green audio hole is used to connect speakers/headphones, and output audio to the speakers to play music, or to play music through headphones. ; The red audio hole is used to connect the microphone, which is used for us to chat with friends and input audio simultaneously in real time.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Blue is used to connect external audio equipment, such as MP3, MP4, and mobile phone audio. It is connected to the headphone jack of the mobile phone through a 1-to-1 audio cable. The audio is input into the computer, that is to say, the mobile phone plays songs and is connected to the computer. If the computer is connected to headphones, the headphones can hear the songs played on the mobile phone (I am not sure here, I have used mobile phones, computers, IPC , connect the headphones, then play songs on the phone, turn on the audio button of the IPC PTZ on the computer, and the headphones connected to the computer can hear the songs played on the phone). If the recording software is installed on the computer, you can record, that is, record input;

##Green: Used to connect speakers/headphones, output audio to speakers, play music, or play music through headphones;

Enter the audio control section of the control panel and bring up the audio window. If the green plug If headphones/speakers are plugged into the hole, the playing speaker will be bright, and if music is played on the computer, the height of the green audio wave amplitude bar behind the speaker will change.

粉: It is used to connect the microphone, for chatting with friends, and input audio simultaneously in real time.

Some headphones have dual jacks and have both headphone and microphone functions. Wearing them, you can listen to music, make QQ calls and video calls with friends.

If there is microphone input, the microphone logo will light up.

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