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DIY binaural mic using Primo EM172
DIY binaural mic using Primo EM172
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Old 23rd May 2020, 06:18 PM   #1
darwinfriction is online now darwinfriction
diyAudio Member
Join Date: Mar 2020
Arrow DIY binaural mic using Primo EM172

I am trying to build my first DIY binaural mic using Primo EM172 capsules but I can use some advice.

What I made so far look like the following mic but without XLR connections.
Creating a DIY Binaural Microphone – Matt Davison
This is a sample recording using auto levels:


Each section is approximately 10cm long in this sketch:
Click the image to open in full size.
(Simply 2 capsules connected to a 3.5mm trs plug)

I am using a ZOOM F1 portable audio recorder but I am experiencing more noise than expected...

I soldered the capsules using a 15W soldering iron and did not exceed 2-3s per capsule.

My questions:

How can I be sure the capsules aren't damaged by soldering or at least compare and measure them noise-wise against other mics?

My ZOOM F1 provides 2.5V PIP. I've read 5-10V would improve noise levels. What are your suggestions improving my setup and getting the most out of these capsules?

Thanks in advance!
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