Mixer, also known as the mixing console, is the amplification of multiple input signals, mixing, distribution, sound quality modification and sound effect processing, and then output through the bus bar (Master). Mixing station is an important equipment for broadcasting and recording programs in modern radio broadcasting, stage amplification, sound program production and other systems. The mixer can be divided into analog mixer and digital mixer according to the signal processing method.

The mixer has differences in the number of input channels, the number of panel function keys and the output indication, in fact, to master the use of the mixer, to examine it as a whole, through actual operation and connection, natural practice makes perfect. The mixer is divided into three parts: input part, bus part and output part. The bus section connects the input part and the output part to form the whole mixer.