Posted by Mike Rivers on 03/25/06 13:32

Jim Thompson wrote:

> >http://www.analog-innovations.com/SED/ShotGunMike.pdf
> I built it around 1972-73 while I was at Dickson Electronics
> (hybrids)... to listen to striking teachers picketing the elementary
> school about 100 yards from my house ;-)

Now THAT'S a DIY project the likes of what we don't see these days.
Cool. I'll bet it sounded like you were listening with a pice of
plastic tubing stuck in your ear, but it was probably adequate for the
purpose.

> I often wondered if the ideal solution would be an individual
> tight-fitting microphone per tube, combined in a summing amplifier;
> but I never tried it.

There are a couple of mics like that. I've seen them at AES shows but
I've never seen one in use. As I recall, Audio Technica showed one, and
Gefell as well. By adjusting the amplitude and phase relationships when
summing the multiple mic elements, you can adjust the width of the
pattern and even steer it.

They cost more than $69.

[Back to original message]