Wired Noise Canceling Skype Microphone Skype Power Amplifier Metal Mic

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About this item

1. Handheld dynamic/condenser microphone with XLR analog output

2. XLR output connects to your computer for digital recording, while the XLR output connects with your sound system's conventional microphone input for use in live performance

3. Smooth, extended frequency response ideally suited for podcasting, home studio recording, field recording, voiceover, and on-stage use

4. Built-in headphone jack allows you to directly monitor from your microphone

5. Adjust headphone volume with easy-to-use controls on the bottom of the microphone

6. Supper Cardioid Dynamic Microphone for vocal amplification, cardioid mic pick up pattern, build in ultra-wide and pop filter to separate background noise and delivering clear sound.

7. Gold-plated dynamic karaoke microphone xlr connector promise accurate transmission of voice, easy to connect and use with including shock mount system reduces handling noise and simple lockable with on/off switch

8. All metal construction cardioid singing microphone ensures long life. Durable zinc die cast housing with black metallic finish and grille featuring classic black ball grille.

9. Great for everyday or occasional use with excellent studio and live performance such as live musical performances, public speaking, podcasts, recording, singing, karaoke microphone, wedding, stage and outdoor activity

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However, the increase of acoustic holes will reduce the stiffness of the back plate and make the back plate "soften".

If the stiffness of the back plate is reduced to the same order of magnitude as the diaphragm, it will seriously affect the performance of the microphone. Therefore, the stiffness of the back plate should be large. You can increase the stiffness of the back plate by thickening the back plate.

The diaphragm and backplane of the microphone are regarded as the two plates of the parallel plate capacitor. When the external bias voltage shown in the above figure is connected, the parallel plate capacitor composed of diaphragm and backplane begins to charge. The charging time may take a few seconds, which can be regarded as the startup time of the capacitive microphone.

After charging, the parallel plate capacitor has charge accumulation, and the charge q = external bias voltage × Diaphragm backplane capacitance.

This makes the parallel plate capacitor work in constant charge mode.

When the acoustic pressure acts on the diaphragm, the distance d between the two plates of the parallel plate capacitor begins to increase or decrease. The relationship between the diaphragm backplane capacitance C and the distance d between the plates is as follows: