Hi everybody;
I never saw any uni directional mic construction and desided to build one to pick up acoustic guitar sound.
I took a copper tube 1/2 inch diameter, 12 inch length, glued an electret mic from one side. The result was sawl-like frequency curve, however it was very directional. I decided to damp resonances and drilled some holes. Teeth became less sharp, frequencies shifted up, but it lost sharp direction pattern.
What I did wrong? Everything?
How do people build uni directional microphones without comb-filter effects, with flat frequency response?
Here is my project:
I never saw any uni directional mic construction and desided to build one to pick up acoustic guitar sound.
I took a copper tube 1/2 inch diameter, 12 inch length, glued an electret mic from one side. The result was sawl-like frequency curve, however it was very directional. I decided to damp resonances and drilled some holes. Teeth became less sharp, frequencies shifted up, but it lost sharp direction pattern.
What I did wrong? Everything?
How do people build uni directional microphones without comb-filter effects, with flat frequency response?
Here is my project: