uxcell 10pcs 9mmx4.5mm Through Hole Mini Electret Microphone Condenser Pickup

hi in this mini project I will show you how to build and remove all dirt reporter whoo-hoo let's start with some basics on the electret microphone the electret microphone is built from a capacitor this capacitor are actual two plates and their specific distance to each other and the changing air pressure when you speak changes the distance slightly and this changing distance also changes the capacity of the capacitor and you can measure this changes in the capacity and converted to some voltage the voltage is actually this what your soundcards measures and recalls this capsule it was actually really cheap it cost me about 30 cents I guess but you can get them from old mobile phones like this one or from a video camera like this one so there are everywhere but I have also to point out the difference between the electret microphone and the dynamic microphones the dynamic microphones are t