Microphones are a common tool in our lives and work, especially for the sound industry. The more you know about the microphone, the better you can make a beautiful sound.
Although we all commonly saw microphones, few people knew about the classification and application of microphones at that time.
Next, we will introduce several common microphones to help you better select and apply microphone sound.
First, the handheld microphone we commonly use in KTV is the dynamic microphone.
This microphone consists of a magnet and a membrane coil. The sound is driven by the air to vibrate the membrane coil, and under the action of the magnet, a magnetic field line is formed, generating a weak current, thereby realizing the acoustic-electrical conversion. This microphone is too cumbersome due to the diaphragm, the vibration response is very sluggish, resulting in insufficient high-frequency vibration, making the sound muffled, high-frequency response is not good.
Second, the common headsets, MP4, mobile phones, and walkie-talkies used in life are electret microphones.
The electret diaphragm is too small, so that the low-frequency vibration is fast, the low-frequency response is insufficient, and on the contrary, the high-frequency vibration distortion.
Third, it is common to have musical instrument microphones and radio horizontal voice microphones.
This microphone is also composed of a diaphragm and a back electrode, and the process is much higher than that of the electret microphone. The sound vibrates through the air to drive the diaphragm, and the distance between the diaphragm and the polar back changes, so that the capacitance between the charged diaphragm and the back pole changes, thereby completing the acoustic-electrical conversion.
After the diaphragm, a slightly more complex amplification circuit is used, and the structure of this microphone is similar to the working mode of the large membrane. Small membrane microphones are superior to electrets in terms of sound. Low frequency diving ability is good. However, due to the problem of diaphragm size at high frequencies, there are still a small amount of distortions.
Fourth, the vertical voice delivery microphone commonly used in the recording studio of the professional live broadcast room.
The capsule of this microphone is no different from the small membrane, but the size is increased. The structure is basically the same as that of small membranes. High-quality large membranes can basically respond to the vocal range, and respond better in terms of low frequencies and high frequencies, but some large membranes make the sound turbid due to the lack of strict control in production.