The choice of microphone should be based on the occasion of use and the requirements for sound quality, combined with the characteristics of various microphones, and comprehensive consideration should be given to the selection.
For example, high-quality recording and broadcasting mainly require good sound quality. Condenser microphones, ribbon microphones or advanced dynamic microphones should be used; for general sound reinforcement, ordinary dynamic microphones should be used;
When the position of the speaker moves from time to time or when speaking, there is a large distance from the amplifier, such as karaoke singing, a unidirectional, low-sensitivity microphone should be used to reduce noise interference.
The use of condenser microphones requires phantom power supply. Generally, the power supply voltage is stated in the technical parameters of the microphone. It is necessary to select a phantom power supply with an appropriate voltage. The mixer is generally equipped with 48V phantom power supply.