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| Archimedes' Lever... |
 Posted: Sat Oct 31, 2009 8:44 am |
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On Fri, 30 Oct 2009 23:32:08 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net>
wrote:
[quote]
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.
[/quote]
Which were generally omni. The symbol, at one time, most certainly did
have variants that related DIRECTLY to the type of mic. |
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| Lostgallifreyan... |
| Posted: Sat Oct 31, 2009 10:39 am |
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Guest
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Archimedes' Lever <OneBigLever at (no spam) InfiniteSeries.Org> wrote in
news:59joe5hrjthhakikidejseqp6usloa4uh5 at (no spam) 4ax.com:
[quote]On Fri, 30 Oct 2009 23:32:08 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net
wrote:
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.
[/quote]
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. Until
the ribbon mic was invented there was no real distinction to be made. Anyway,
given the huge size, even the 'omni' mics of that time were all cardioid to
some extent, you won't see a good quality true omni until you get below 6 mm
capsule size, as used for specialised metering (and probably cheaply enough
by now in electret type). I looked for symbols and didn't find them relating
to polar patterns at all, though I did find several relating to transducer
type. An electronic schematic symbol doesn't need to specify acoustic
responses and details like resonant cavities in microphone bodies.
If you want to debate this go look deeper at it first. If you chose the other
course of finding as many ways to call me a fucktard as you can, you're going
on the plonk file because there's piss poor entertainment to be had from that
after the first time. |
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| Archimedes' Lever... |
| Posted: Sat Oct 31, 2009 11:14 am |
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Guest
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On Sat, 31 Oct 2009 11:39:09 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net>
wrote:
[quote]
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.
[/quote]
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! |
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| Lostgallifreyan... |
| Posted: Sat Oct 31, 2009 11:40 am |
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Guest
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Archimedes' Lever <OneBigLever at (no spam) InfiniteSeries.Org> wrote in
news:blroe551fus02u6uf68e70kqlipri70rdc at (no spam) 4ax.com:
[quote]On Sat, 31 Oct 2009 11:39:09 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net
wrote:
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!
[/quote]
Yep, I'm sort of watching that space too. At first I thought it wouldn't be
viable, horrible SNR etc, but I was told (by Phil Hobbs I think) that it
worked fine, so I'm likely to want to play with one at some point. /dreaming
Also given the high energy density that powerful lasers can make, I wonder if
the idea might be reversible somehow. Plasma tweeters never really took off
(too expensive maybe), and plasma wide-range speakers maybe don't even exist
except as a kind of audiophile monument that is about as out-of-reach as a
Cray computer was for most of the last few decades. I wonder if some kind of
laser might put enough modulated energy into a tiny space to make it work
though. But this is the very loosest kind of wondering, I really haven't a
clue if it would work well, or what other ways might be better. |
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| Archimedes' Lever... |
| Posted: Sat Oct 31, 2009 11:47 am |
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Guest
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On Sat, 31 Oct 2009 12:40:33 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net>
wrote:
[quote]Plasma tweeters never really took off
(too expensive maybe),
[/quote]
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. |
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| Lostgallifreyan... |
| Posted: Sat Oct 31, 2009 12:26 pm |
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Guest
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Archimedes' Lever <OneBigLever at (no spam) InfiniteSeries.Org> wrote in
news:gutoe5tbnf9deb8u1o9o3uc3fu6u1p5kjt at (no spam) 4ax.com:
[quote]On Sat, 31 Oct 2009 12:40:33 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net
wrote:
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.
[/quote]
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. |
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| Archimedes' Lever... |
| Posted: Sat Oct 31, 2009 12:43 pm |
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Guest
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On Sat, 31 Oct 2009 13:26:18 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net>
wrote:
[quote]Archimedes' Lever <OneBigLever at (no spam) InfiniteSeries.Org> wrote in
news:gutoe5tbnf9deb8u1o9o3uc3fu6u1p5kjt at (no spam) 4ax.com:
On Sat, 31 Oct 2009 12:40:33 -0500, Lostgallifreyan <no-one at (no spam) nowhere.net
wrote:
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.
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.
[/quote]
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 |
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| Proteus IIV... |
| Posted: Tue Nov 03, 2009 1:16 am |
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Guest
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On Oct 31, 1:43 pm, Archimedes' Lever <OneBigLe... at (no spam) InfiniteSeries.Org>
wrote:
[quote]On Sat, 31 Oct 2009 13:26:18 -0500, Lostgallifreyan <no-... at (no spam) nowhere.net
wrote:
Archimedes' Lever <OneBigLe... at (no spam) InfiniteSeries.Org> wrote in
news:gutoe5tbnf9deb8u1o9o3uc3fu6u1p5kjt at (no spam) 4ax.com:
On Sat, 31 Oct 2009 12:40:33 -0500, Lostgallifreyan <no-... at (no spam) nowhere.net
wrote:
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.
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- Hide quoted text -
- Show quoted text -
[/quote]
YOU ARE AN IDIOT
SHUT THE FUCKUP ALREADY YOU FUCKING FUCKTARD
TAKE YOUR FANTASY ANUS OUT OF HERE AND QUIT SPREADING YOUR ANAL IDIOCY
IN THIS GROUP
I AM PROTEUS |
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| Lostgallifreyan... |
| Posted: Mon Nov 09, 2009 5:28 am |
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"Michael A. Terrell" <mike.terrell at (no spam) earthlink.net> wrote in
news:i72dneEn8oLL_HbXnZ2dnUVZ_oxi4p2d at (no spam) earthlink.com:
[quote]Google is so screwed up anymore that it isn't funny.
[/quote]
I just had a momentary glimpse of how deep THAT rabbithole goes, and it's not
an edifying view!
[quote]
Sponsored Links
How to Make Electricity
$200 DIY kit has electricity co's Exec calling for a ban on its sale.
www.Power4Home.com
[/quote]
This thing turns out to be a direct scam, credit card fraud, pure and simple,
as Google's own searches will quickly reveal. Google included that as a
sponsored link, and worse, they obscured it so the actual link above (the URL
isn't the actual link, the "How To Make Electricity" is the link text)
doesn't appear in the status bar of a browser when the pointer hovers over
it. Further, it contains so much encrypted session-based tracking stuff, AND
a payload for the script at the scammer's end appended to their own URL
buried in Google's long link.
As far as I'm concerned, with this single move, Google just degenerated into
the role of a pimp and procurer of victims for crime, knowing exactly what
they do, so that makes them criminals too.
I wonder who this might be reported to, to have a significant effect. I think
maybe the old blind eye won't do, now. Google wil say it does, for a while,
but given enough reports they'll soon get clobbered enough to make them stop
profiting from this degeneration. |
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| Lostgallifreyan... |
| Posted: Mon Nov 09, 2009 5:45 am |
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Guest
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Lostgallifreyan <no-one at (no spam) nowhere.net> wrote in
news:Xns9CBE6A90BD7A3zoodlewurdle at (no spam) 216.196.109.145:
[quote]"Michael A. Terrell" <mike.terrell at (no spam) earthlink.net> wrote in
news:i72dneEn8oLL_HbXnZ2dnUVZ_oxi4p2d at (no spam) earthlink.com:
Google is so screwed up anymore that it isn't funny.
I just had a momentary glimpse of how deep THAT rabbithole goes, and
it's not an edifying view!
[quote]
Sponsored Links
How to Make Electricity
$200 DIY kit has electricity co's Exec calling for a ban on its sale.
www.Power4Home.com
[/quote]
This thing turns out to be a direct scam, credit card fraud, pure and
simple, as Google's own searches will quickly reveal. Google included
that as a sponsored link, and worse, they obscured it so the actual link
above (the URL isn't the actual link, the "How To Make Electricity" is
the link text) doesn't appear in the status bar of a browser when the
pointer hovers over it. Further, it contains so much encrypted
session-based tracking stuff, AND a payload for the script at the
scammer's end appended to their own URL buried in Google's long link.
As far as I'm concerned, with this single move, Google just degenerated
into the role of a pimp and procurer of victims for crime, knowing
exactly what they do, so that makes them criminals too.
I wonder who this might be reported to, to have a significant effect. I
think maybe the old blind eye won't do, now. Google wil say it does, for
a while, but given enough reports they'll soon get clobbered enough to
make them stop profiting from this degeneration.
[/quote]
Oh, and just to head off the chance of a bit of trolling, I clicked the link
not because I beleive in it, but because it's a source of endless fascination
to me what kinds of crap people come up with to try to convince the public
that they have some kind of magic tech. Didn't even see it this time, just a
long "but wait there's even more" infomercial caricature. I think someone
mentions a couple of solar panels and a windmill... Whole thing makes Arthur
Daley look like very high class. |
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| Baron... |
| Posted: Mon Nov 09, 2009 7:17 am |
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Guest
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Lostgallifreyan wrote:
[quote]Lostgallifreyan <no-one at (no spam) nowhere.net> wrote in
news:Xns9CBE6A90BD7A3zoodlewurdle at (no spam) 216.196.109.145:
"Michael A. Terrell" <mike.terrell at (no spam) earthlink.net> wrote in
news:i72dneEn8oLL_HbXnZ2dnUVZ_oxi4p2d at (no spam) earthlink.com:
Google is so screwed up anymore that it isn't funny.
I just had a momentary glimpse of how deep THAT rabbithole goes, and
it's not an edifying view!
[quote]
Sponsored Links
How to Make Electricity
$200 DIY kit has electricity co's Exec calling for a ban on its sale.
www.Power4Home.com
[/quote]
This thing turns out to be a direct scam, credit card fraud, pure and
simple, as Google's own searches will quickly reveal. Google included
that as a sponsored link, and worse, they obscured it so the actual
link above (the URL isn't the actual link, the "How To Make
Electricity" is the link text) doesn't appear in the status bar of a
browser when the pointer hovers over it. Further, it contains so much
encrypted session-based tracking stuff, AND a payload for the script
at the scammer's end appended to their own URL buried in Google's
long link.
As far as I'm concerned, with this single move, Google just
degenerated into the role of a pimp and procurer of victims for
crime, knowing exactly what they do, so that makes them criminals
too.
I wonder who this might be reported to, to have a significant effect.
I think maybe the old blind eye won't do, now. Google wil say it
does, for a while, but given enough reports they'll soon get
clobbered enough to make them stop profiting from this degeneration.
Oh, and just to head off the chance of a bit of trolling, I clicked
the link not because I beleive in it, but because it's a source of
endless fascination to me what kinds of crap people come up with to
try to convince the public that they have some kind of magic tech.
Didn't even see it this time, just a long "but wait there's even more"
infomercial caricature. I think someone mentions a couple of solar
panels and a windmill... Whole thing makes Arthur Daley look like very
high class.
[/quote]
Mr Daley was a class act. 
That will confuse those at the other side of the pond ! :-)
--
Best Regards:
Baron. |
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| Proteus IIV... |
| Posted: Mon Nov 09, 2009 1:10 pm |
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THIS TOPIC HASNOW BEEN DEFECATED ON BY TROLL
A MICROPHONE IS NOT ELECTRICAL ENGINEERING
BUZZZ THE FLUX OFF
I AM PROTEUS |
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| Eddie... |
| Posted: Mon Nov 09, 2009 6:44 pm |
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On 11:37 15 Oct 2009, Eddie wrote:
[quote]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
[/quote]
THANKS TO ALL WHO HELPED!
Eddie (OP) |
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| Proteus IIV... |
| Posted: Tue Nov 10, 2009 3:53 pm |
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Guest
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On Oct 31, 12:14 pm, Archimedes' Lever
<OneBigLe... at (no spam) InfiniteSeries.Org> wrote:
[quote]On Sat, 31 Oct 2009 11:39:09 -0500, Lostgallifreyan <no-... at (no spam) nowhere.net
wrote:
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!
[/quote]
WHATEVER YOU DO OP EDDIE DO NOT LISTEN TO THIS TROLL ARCIHIONMEDS
HE IS A TROLL BUT NO BETTER NOR LATGER IN LIFE THAN A TURKEY
HE SHOULD BE FROZEN IN HIS TRAX
COME THIS THANKSGIVING BAISTED AND ROASTED FOR THE GROUPS ENJOYMENT
HE ALWAYS LIKES MAKING FUN AND FLAMING ANYONE HE FEELLS RANCHY OVER
WITH HIS ANAL COMMENTARIES INSULTS AND INNANE INPUT SO IT IS ONLY FAIR
WE COOK HIM WELL
WITH ALL THE SALMONELA AND FOOD POISONING GOING AROUND FROM HIS KIND
AND ALL
IT IS RIGHT AND JUST
GOOD LUCK
I AM PROTEUS |
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