Microphone working principle type
Condenser microphones use the principle of capacitor charging and discharging between conductors, and use a thin film as a vibrating membrane to induce sound pressure to change the static voltage between the conductors and directly convert it into electrical energy signals. Although this type of microphone requires additional power to operate, the common power source is battery or phantom power, but it has a very wide frequency response and super high sensitivity, making it visible everywhere in the studio.
The world's earliest dynamic microphone, M19b, was made by Eugen Beyer, a German company Beyerdynamic, using the principle of electromagnetic induction. The advantage of a dynamic microphone is that it can withstand mechanical pressure better, and is not so sensitive to footsteps and noise during operation. Compared with ribbon microphones and condenser microphones, the film of a dynamic microphone is heavier, and it can effectively deal with high sound pressure and surrounding interference. She has a firm structure and does not require DC voltage to work, and is very suitable for use in live performances and high sound pressure environments.
The ribbon microphone is also a kind of dynamic microphone technically. The main difference is that she replaced the diaphragm and coil used by the latter with a thin aluminum metal sheet. The tone is warmer and softer than condenser microphones, with natural fidelity. When you want to reproduce the sound, if you think that the condenser microphone sounds too prominent and the sensitivity is too high, then you can choose to use a ribbon microphone.