How to make perfect microphone at home.

Thread Starter

ArnoldPope

Joined Aug 3, 2021
1
Hello, I am very much a newbie but want to build a microphone on my own...
I have a electret microphone capsule which I have got my old headphone.1628007736067.png like this...

So using this i want to make two types of mics
1) For mobile usage (lavalier mic) 1628007844120.png like this...
2) For real mixer usage ( dynamic mic) 1628007930696.png like this... as i have a mixer at mic house..

so please help me built it two types of headphone..
if any power supply needed please prefer 5v ..

need only circuit diagram and component list with value..

Thanking you in advance..
 

Ian0

Joined Aug 7, 2020
3,245
2) For real mixer usage ( dynamic mic)
1628007930696.png
like this... as i have a mixer at mic house..
Parts list:
Dynamic mic capsule
Turned metal housing
Mesh cover
foam sponge
XLR connector.
2 pieces of wire

That's all that there is in a dynamic microphone, and I somehow think you're not going to make your own dynamic mic capsule.
 

BobTPH

Joined Jun 5, 2013
3,661
Why not? It is just a magnet, a coil of wire and a diaphragm. I think I could make one. It would be far from perfect though!

Bob
 

LowQCab

Joined Nov 6, 2012
1,096
Experimentation is a good way to learn how and why things work.

The end result when learning about Microphones is that the quality of the Recording
usually has very little to do with the Microphone's Frequency Response Specifications per-se,
or how much You paid for it.

There are 2 major factors that have to be dealt with .........
The Directional-Characteristics of the Microphone,
and the Environment that the Recording is being made in.

Generally, if the Microphone is not within ~3 to 6-inches of your mouth,
it's going to sound like crap.

Next is the ROOM YOU ARE IN.
Your Ears automatically cancel-out most, if not all, of the Room-Resonances,
but a Microphone will put them right in your face loud and clear.

The room needs to be as "dead" as possible,
with Heavy-Thick sound absorbing materials EVERYWHERE.
Egg-Crate-Foam does virtually zero.

The problem Frequencies are usually in the ~100 to ~300hz Range.
This can be looked at from anther perspective ...........
Hard-Flat-Surfaces that are from ~3 to ~10-feet apart from each other,
or, ~3 to ~10-feet from the Microphone.
This includes the Floor and the Ceiling.
.
.
.
 

Audioguru again

Joined Oct 21, 2019
3,533
Why not? It is just a magnet, a coil of wire and a diaphragm. I think I could make one. It would be far from perfect though!
You will not be able to make a proper dynamic mic which is similar to but smaller than a tiny speaker.
1) The coil must use extremely thin wire and be attached to a very thin diaphragm to be lightweight. It must connect to the terminals with lightweight flexible wires. The coil must fit tightly over the magnet polepiece without touching it.
2) The magnet structure must surround the coil with one pole and have its polepiece inside the coil with the other pole.
 

Ian0

Joined Aug 7, 2020
3,245
Condensors are popular for instruments, cymbals and snare drums, but dynamic microphones are probably more popular for vocals, and specialist microphones for bass drums also tend to be dynamic.
 
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