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What are the advantages and disadvantages of condenser microphones

Author:admin   AddTime:2021-04-21

What are the advantages and disadvantages of condenser microphones

Condenser microphones use changes in the size of capacitors to convert sound signals into electrical signals. This type of microphone is the most common, and this is the case with the built-in microphones of common recorders. Because it is cheap, small in size, and the effect is not bad. Sometimes it is also called a microphone. head. What are the advantages and disadvantages of condenser microphones? Let's take a look!

Advantages of condenser microphones
Can convert sound directly into electrical energy signal

Condenser microphones use the principle of capacitor charging and discharging between conductors. Ultra-thin metal or gold-plated plastic film is used as a vibrating film to induce sound pressure, which changes the static voltage between conductors and directly converts them into electrical energy signals, which are practically coupled by electronic circuits. The output impedance and sensitivity are designed.

Can show the characteristics of original sound reproduction

Acoustics experts take the pursuit of "reproduction of the original sound" as the highest level of audio! From the analysis of the basic design principles of the microphone, it is not difficult to find that the condenser microphone not only relies on the precise mechanism manufacturing technology, but also combines complex electronic circuits to directly convert the sound into Electric energy signals have inherently superior characteristics, so they are the best choice for those who pursue "reproduction of the original sound".

Has an extremely wide frequency response

The diaphragm is the main component of the microphone that senses sound and converts it into electrical energy signals. The material of the diaphragm and the design of the mechanism determine the characteristics of the microphone's sound quality. Because the diaphragm of a condenser microphone can be made of extremely thin and light materials, and the induced sound pressure is directly converted into an audio signal, the frequency response of the bass can be extended to ultra-low frequencies below 10 Hz, and the treble can easily reach tens of KHz. Ultrasound, showing very wide frequency response characteristics!

With ultra-high sensitivity

Because there is no voice coil load on the diaphragm, an extremely thin and light design can be used, so not only the frequency response is extremely superior, but also has excellent sensitivity, can sense extremely weak sound waves, and output the clearest, finest and accurate original sound!

Fast transient response characteristics

In addition to the characteristics of the diaphragm that determine the frequency response and sensitivity of the microphone, the ability to respond to sound waves, the so-called "transient response" characteristics, is one of the most important factors affecting the timbre of the microphone. The speed of the microphone's transient response characteristics is determined by the weight of the entire diaphragm. The lighter the diaphragm, the faster the response speed. The capacitive sound head is extremely thin and light. The diaphragm has extremely fast transient response characteristics, which can show clear, bright and powerful sound and precise audio and video. In particular, there is no sound staining and "box sound" in the middle and low frequencies, and the high pitch is delicate and crisp, which is the most significant timbre characteristic of the capacitive type. It can be clearly seen from the following figure that the transient response characteristics of the condenser capsule are much better than those of the moving coil.

Features ultra-low touch noise

When using a handheld microphone, the touch noise caused by contact with the palm of the hand makes the original sound mixed with additional noise, which has a huge impact on the sound quality, especially for wireless microphones with pre-amplifier circuits, so touch noise becomes a judge of the quality of the microphone. Important project. From the perspective of physical phenomena, the goose feathers fall to the floor like the copper plate, and the goose feathers can hardly hear the falling sound, while the copper plate is very loud, indicating that the lighter material has less impact than the heavier. In the same way, the diaphragm of a condenser microphone is relatively light, and inherently has the excellent characteristics of "ultra-low touch noise".

Has the characteristics of drop resistance and impact resistance

Using the microphone will inevitably cause malfunctions or abnormalities due to accidental drop and collision. Since the condenser capsule is composed of lighter plastic parts and a strong light metal shell, the impact force of falling to the ground is small, and the failure rate of damage is low

Small size and light weight

Condenser microphone adopts ultra-thin diaphragm, which has the characteristics of small size, light weight, high sensitivity and superior frequency response, so it can be designed as an ultra-small microphone (commonly known as little bee and little ant) for a wide range of applications

Most suitable for mounting on wireless microphones

Condenser microphones have the above-mentioned excellent characteristics and have become the favorite of sound engineering experts and singers. Wireless microphones have become a trend in the world today to sing on stage or karaoke at home. Wireless microphones can provide capacitive sound by themselves. It has all the advantages of condenser microphones, and has become the best microphone that professional audio experts dream of in the digital audio era.

Disadvantages of condenser microphones
The structure is complicated, the cost is expensive, the sound film is fragile, and the sound film is afraid of the tide.

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