Author:admin AddTime:2021-04-22
The condenser microphone has two metal plates, one of which is coated with an electret film (mostly polyperfluoroethylene propylene) and grounded, and the other plate is connected to the gate of the field effect transistor, the gate and the source A diode is connected between the poles, as shown in Figure 2-4. When the electret diaphragm itself is charged, the amount of surface charge is Q, and the capacitance between the plates is C, then the ground voltage U=Q/C is generated on the pole head, when it is vibrated or rubbed by airflow , Due to vibration changes the distance between the two plates, that is, the capacitance C changes, but the power Q does not change, it will cause a voltage change. The magnitude of the voltage change reflects the strength of the external sound pressure, and the frequency of this voltage change reflects The frequency of the outside sound, this is the working principle of electret microphone.
Many of the performers, in the use of hands grabbed the microphone WangTou manner, is severely damage…
Singing with a pointed wired microphone, pay attention to take the microphone posture, because the mi…
For those who do not have experience or expertise, want to enhance the quality of the sound, the choi…
Shenzhen Shuyin Technology Co., Ltd. is a high-tech enterprise integrating microphone, microphone, Bluetooth headset, electronic audio-visual products and peripheral accessories of electronic digital products into one.
Email:lucy@soft-voice.com
Factory address: 2-4 / F, building a, No. 46-7, Hantang Second Road, Baoan community, Yuanshan street, Longgang District, Shenzhen