What is the symbol for a mic?

[Archimedes' Lever]

Google is so screwed up anymore that it isn't funny.

You're both idiots. Google does NOT carry the binary groups, so it only
follows that there would be no ability to search said groups.

D'OH!

 

[Archimedes' Lever]

Ha! I think my use of the word fucktard is better than yours. I win. Not
hard, given your 'logic'. Just let people do what they want to do.

Dumbfuck. Nobody is stopping him. Folks are merely stating that it a
fucktard move, fucktard. Or is that clueless fucktard?

 

[Archimedes' Lever]

Btw, that original symbol of the circle and bar wasn't originally omni. it
wasn't specified at all, it was purely based on the ball and biscuit shape of
an early form.

Which were generally omni. The symbol, at one time, most certainly did
have variants that related DIRECTLY to the type of mic.

 

[Archimedes' Lever]

Given that it was a while before anyone invented any kind of high quality
directional mic after the spherical omni type moving coil mic, it's not
surprising that the original symbol seems to equate with omni types.

The first one was in 1876, so I think we have had a while to play with
the engineering.

Directional mikes (cardioid) were being used in the late 30's and the
40's and 50's ushered in a LOT of audio gear, both in the military
channels and the commercial realm as well.

Laser mics are cool...

A new type of laser microphone is a device that uses a laser beam and
smoke or vapor to detect sound vibrations in free air. On 25 August 2009,
U.S. patent 7,580,533 issued for a Particulate Flow Detection Microphone
based on a laser-photocell pair with a moving stream of smoke or vapor in
the laser beam's path. Sound pressure waves cause disturbances in the
smoke that in turn cause variations in the amount of laser light reaching
the photo detector. A prototype of the device was demonstrated at the
127th Audio Engineering Society convention in New York City from 9
through 12 October 2009.

Very fresh!

 

[Archimedes' Lever]

Plasma tweeters never really took off
(too expensive maybe),

The military has eximer lasers that can punch a dent in a missile body
in flight.

So, maybe a variant of a ribbon tweeter, where photons impinge on the
ribbon backside, causing emission on the face of it.

 

[Archimedes' Lever]

But with some vicious harmonic distortion. I was thinking of some kind of
gas state only, or actual plasma, just not derived from HV. A small Q-
switched YAG like the Abrams tank rangefinders can, if focussed, make a
snapping sound as it burns the air (and a flash at focal point). Maybe if
there was some way to control it... But I bet it would end up just as
unfeasible and dangerous as doing it with HV. And probably harder to do.
Might not need huge peak power at all though, if a few hundred watts could be
focussed onto some fluid that can then have its rate of expansion modulated.
Anyway, I'll leave it there, I'm going to sleep. And I also know that people
in alt.lasers (and likely Phil Hobbs who haunts here and there too) would
have talked about this if it was anything like viable. Besides, I think the
idea that uses a closed, sealed Helmholtz resonator as a kind of fridge is
cooler. Totally strange and wonderful idea, to use sound as a heat pump.

I never said a damned thing about HV. And high powered lasers hardly
become a candidate for something that you want to derive high electrical
efficiency from as it relates to a simple audio transducer.

If ribbon tweeters currently work, and they do, I see no difference
between motivating them they current way, or by using photon impingement.
It would NOT be focused, It would be a huge spot. Same number of
photons, but spread out

 

[Eddie]

I want to write (by hand) if some voice recordings of mine are
in mono or stereo.

Are there some standard symbols used for a mono mic and a
stereo mic?

Are there mono/stereo mic symbols used in schematic circuit
diagrams which could be used?

--------------------------------

I've seen two overlapping circles used for stereo. But for some
reason a mono mic is one circle PLUS a short bar

http://tinyurl.com/ykdar8p

THANKS TO ALL WHO HELPED!

Eddie (OP)