The microphone placement in the conference room is usually divided into two types: desktop placement and microphone stand placement. When placing the microphone on the table, pay attention to the intersection angle and distance between the speaker's lips and the microphone core, so that the central axis of the microphone core points to the speaker's lips. At this time, the frequency response characteristics of the microphone output are better; the lip is offset from the core. The farther the center axis is, the worse the frequency response characteristics, the more serious the treble damage, and the output voltage of the microphone will also decrease. Usually a cardioid microphone, the angle between the lip and the central axis of the core is in the range of 450.

One of those devices that all radio enthusiasts are familiar with: the microphone. Some people call it a microphone, and in the mouths of domestic enthusiasts, a more common name is called "hand microphone". We spend a lot of time every day holding a microphone to communicate, but few people will carefully study this little thing.