When debugging voice or electronic and electrical products, many
external engineers may encounter strange noises, buzzing like
the sound of mosquitoes in the summer and feeling lost. Most
finished product engineers will determine that the microphone
head in the microphone is defective and has poor
anti-interference performance. Here I want to explain why such a
problem arises.
The reason for this problem. Electromagnetic interference refers
to the emission of electromagnetic waves during the use of
electrical or electronic products. If the microphone on the
current board is not properly protected (such as keeping the
microphone away from the antenna), the audio current, such as
the microphone, will definitely be interfered with during normal
listening. The sound emitted by the horn is a buzzing sound.
There are usually two ways to solve it
1) To solve electromagnetic interference through wires, if the
microphone head is selected with a wired head. Be sure to
replace it with a single core shielded wire later on. This type
of enameled wire has a positive electrode outer diameter of
1.0MM and is wound with 10 copper wires. The negative electrode
is made by winding 28 copper wires with an outer diameter of
1.2MM. The insulation layer is wrapped and isolated by PVC. This
type of wire has a very good anti electromagnetic interference
effect and significantly cancels out buzzing sounds.
2) If the microphone circuit board does not use wired
microphones, many boards use pin or pin microphones. This
requires customization of the Michael Feng microphone.
