Does lengshuitan have a cell phone microphone?

There are mobile phone microphones in lengshuitan, which can be bought in electronic equipment cities and mobile phone shops.

Microphone, also known as microphone, is an electroacoustic device, which belongs to microphone and is a transducer used for acoustic-electrical conversion. It generates voltage through the action of sound waves on electroacoustic components, and then converts it into electrical energy. Used in various public broadcasting equipment. There are many kinds of microphones and simple circuits.

There are two main points in analyzing the microphone circuit:

1, signal transmission loop analysis, relatively simple, analysis of various microphone input jack circuits.

2. Analysis of microphone signal amplifier. Microphone amplifier is a small signal and low noise audio amplifier, so it is not difficult to analyze the microphone level control circuit.