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Wednesday, 4 June 2014


 Vocal Microphone (USB Powered)

This is an awesome vocal microphone we build it few minutes before. It is a similar version of STP-CM99-101 which was a perfect Condenser Microphone but wasn't so much suitable for Heavy and professional vocal performances. This works very similar to that one but with the presence of a high quality and expensive Dynamic Microphone Element. Its performance is very cool. It is very sensitive to the vocals and other sounds.

Some changes was done to its Element. That was the alteration of the Diaphragm of the Dynamic Microphone element which is just a speaker of  headphones. We replaced this diaphragm with a very thin layered plastic transparent  sheet Diaphragm. And so the frequency response become equivalent to the professional condenser microphones.

We purchased some cheap Dynamic Microphone Case to fit our circuit board, switch, LED and capsules in it. This was done successfully.
After that few samples were recorded and it sounded awesome.

This is the capsule direction.  
 Here you can see the on/off switch that looks cool.
 Here you can see the white crystal LED which lights up when the microphone is turned on.
 Here on the bottom side of this microphone we used a round rubber pieces. And fix the wires because if they move several times they may get damage from inside. So it was done for its safety and Long life.
 Very High Quality USB Cables to provide power was used in this microphone. And an expensive low noise Audio Cable was used to  connect the stereo output jack into this wire.

It works wonderful and in fact awesome with Audio Interfaces.
Here you can take a look of its USB Cable
Here you can see the stereo audio output cable that is connected to the 1/8inch stereo Audio male jack.


When i am 5 feet away from the microphone. UPS Working CPU working these sounds can also be heard in these samples.

And here is another sample when i am 5 inches away from this microphone.


We are here with more sound samples and we are here comparing Normal Computer Headphone Microphone which consists of an Element which is an Electrek Capsule WM61a and Our project that contains Expensive Thin Diaphragm Dynamic Mic Capsule.
So Here we have Vocal Actions 
Vocals were recorded on normal microphone ECM Wm61a

Same Vocals on Our STP-DM-01V Microphone were recorded: 

And Here we have paragraph reading recording:
A paragraph recorded on Normal Computer Microphone ECM Wm61a


Same Paragraph was recorded with this STP-DM-V01 Microphone:

After this comparison it is very clear that our "STP-DM-V01" is currently a winner microphone.
After listening to these samples any one can make a final decision about which type of microphone is required for what purpose.

Here we have its frequency response curves

Project Details:

Project By : Sam Technology Professionals
Project Code : STP-DM-V01
Body Type :  Plastic Body
Lifetime     : 15 years
Warranty   :  1 Year   (Expired if damaged or opened)


  • Vocal Recording .
  • Wildlife Recording.
  • Air Sound Recording.
  • Broadcast Recording (Tutorials etc).
  • Musical Instruments Recordings.
  • Voice Recognition Software.
  • Audio Dubbing along Video etc.
 Ad was posted to OLX today for selling it for 3500/- Rs Here you can see - CLICK HERE
STATUS : 49 SOLD / 91 Available

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