Fleetie wrote:
Another idea would be to use an electron gun. Electrons don't propagate
well through air, because they collide with air molecules. This effect
would increase with increasing local air pressure and density, again
reducing the received signal.

Just an idea to kick around... Any takers?


Radioactive source? Gieger counter as pickup?

'supose you could modify a smoke detector to use as a microphone.

--
Adrian C

Phil Allison wrote:
"keith ratbag = utter MORON from HELL "

Yawn same **** different day. You do have such a limited imagination Fill

That is strange because Sony only considered it a medium quality product,

** Absurd CRAPOLOGY.

Translation: something that doesn't fall in line with your rather
twisted beliefs.

as the name indicates - 101 binary for 5 or 5 out of 10. If you don't
believe it check this link:-

http://www.sony.net/Fun/SH/1-20/h5.html


** Complete pile of DRIVEL and UTTER ******** written by god knows what
****wit in Sony's marketing department after drinking far too much Saki !!!

ROFL, I think that I'd take Sony's version of events over what Fill
would like to believe any day.

It was of course *Philips* who originally conceived and developed the CD
system, inviting Sony into the game at a late stage and so Philips had
priority in model naming. It was simply not on to both of them use the
number 100 on their first models.

The CD100 model Philips developed was very basic with few features ( not
even remote control) - plus it employed 14 bit D to A converters cos
Philips simply had no 16 bit ones available.

It is without doubt that Philips originated the CD, but they realised
quite early on that they could not bring such a radical device to market
on their own. that led them to choose Sony as a partner, quite early on
in the process, the first demonstration unit that Philips took to Japan
was an all discrete component lab model. It was Sony's suggestion that
the sampling rate of 44.1Ks/s was chosen and also the 16 bit resolution.
The also contributed the error correction code system. It was at Sony's
insistence that the 120mm disk holding (at the time) 73 minutes of music
was set as the standard. All this went into the making of the "red book"
which had to be settled before anybody could design a commercial product
so you can hardly say that Sony came in at the last moment.

To see the development from a Philips perspective, check this link

http://www.exp-math.uni-essen.de/~im.../beethoven.htm


However, Sony's engineers took a little longer to finalise their first CD
player design, producing a very different product from the Philips
achine - the fully featured CDP101 was anything but basic, it came with
the lot.

Sony also elected to develop the first true 16 bit D to A converter IC for
the CDP101.

Sony already had 16 bit converters which is why they pushed for that
resolution in the standard

Sony were clearly out to "upstage" Philips with their first CD player and
succeeded.

Certainly the CDP-101 was better than the Philips unit, but Sony knew
that much better could be done so they considered it to be a medium
quality unit.

"keithr" wrote in message
...
Phil Allison wrote:

The CD100 model Philips developed was very basic with few features ( not
even remote control) - plus it employed 14 bit D to A converters cos
Philips simply had no 16 bit ones available.


But Philips were using 4x oversampling, whereas Sony weren't using
oversampling in the CDP101. So in terms of dynamic resolution it's about
even.


David.

"keith ratbag = utter MORON from HELL "


That is strange because Sony only considered it a medium quality product,

** Absurd CRAPOLOGY.

as the name indicates - 101 binary for 5 or 5 out of 10. If you don't
believe it check this link:-

http://www.sony.net/Fun/SH/1-20/h5.html


** Complete pile of DRIVEL and UTTER ******** written by god knows
what ****wit in Sony's marketing department after drinking far too much
Saki !!!

ROFL,


** Why so funny - you are the one who is making a huge error.

That page is clearly from some dopey puke in Sony marketing.


I think that I'd take Sony's version of events...


** That is NOT any kind official version from Sony.

See the word " Fun " in the link - ****wit ?????

It also looks like a dodgy translation made from Japanese.

A complete pile of DRIVEL and UTTER ******** written by god knows what
****wit in Sony's marketing department after drinking far too much Saki is
** EXACTLY ** what it IS !!!!

The story is all fantasy ********.

Go drop dead

- YOU ****WIT TROLLING MORON



...... Phil

Phil Allison wrote:
"keith ratbag = utter MORON from HELL "

Same **** same day - you are a boring old fart Fill

That is strange because Sony only considered it a medium quality product,

** Absurd CRAPOLOGY.

as the name indicates - 101 binary for 5 or 5 out of 10. If you don't
believe it check this link:-

http://www.sony.net/Fun/SH/1-20/h5.html

** Complete pile of DRIVEL and UTTER ******** written by god knows
what ****wit in Sony's marketing department after drinking far too much
Saki !!!
ROFL,


** Why so funny - you are the one who is making a huge error.

That page is clearly from some dopey puke in Sony marketing.


I think that I'd take Sony's version of events...


** That is NOT any kind official version from Sony.

See the word " Fun " in the link - ****wit ?????

It also looks like a dodgy translation made from Japanese.

A complete pile of DRIVEL and UTTER ******** written by god knows what
****wit in Sony's marketing department after drinking far too much Saki is
** EXACTLY ** what it IS !!!!

The story is all fantasy ********.

Go drop dead

- YOU ****WIT TROLLING MORON

Same boring old insults as usual - why don't you give them up Fill,
nobody is shocked by them, nobody in fact gives a monkey's toss about them.

I see that you have conveniently snipped all the stuff about Philips and
Sony's input to the CD standards and the link to the Philips engineer's
description of the process. Funny how you criticise others for that very
practice. Guess that just makes you a common hypocrite.

David Looser wrote:
"keithr" wrote in message
...
Phil Allison wrote:
The CD100 model Philips developed was very basic with few features ( not
even remote control) - plus it employed 14 bit D to A converters cos
Philips simply had no 16 bit ones available.

But Philips were using 4x oversampling, whereas Sony weren't using
oversampling in the CDP101. So in terms of dynamic resolution it's about
even.

I suppose that shows how shortcomings in one area can lead to advances
in others, but, lets face it, in spite of the comments by some
enthusiastic owners, neither is up to the quality of modern units.

I have a working original Sony D50 portable player. It was a little
marvel when I bought it in 1985, but these days you can get an even
smaller unit with better quality reproduction for less than $50. Even
then the market for such devices has been superseded by the various MP3
players available for even less cost.

Keith

"keith ratbag = utter ****ING MORON from HELL "


That is strange because Sony only considered it a medium quality product,

** Absurd CRAPOLOGY !!!!!!!!!!!!!!!!


as the name indicates - 101 binary for 5 or 5 out of 10. If you don't
believe it check this link:-

http://www.sony.net/Fun/SH/1-20/h5.html


** Complete pile of DRIVEL and UTTER ******** written by god knows
what ****wit in Sony's marketing department after drinking far too much
Saki !!!

ROFL,


** Why so funny - you are the one who is making a huge error

- you RIDICULOUS POMMY ****HEAD !!

That page is clearly from some dopey puke in Sony *marketing*

- so it is naturally 100% ********.

Only the congenitally retarded would believe one word of it.

And YOU are certainly one of them !!!!



I think that I'd take Sony's version of events...


** That is NOT any kind official version from Sony.

See the word " Fun " in the link - ****wit ?????

It also looks like a dodgy translation made from Japanese.

Only the congenitally retarded would believe one word of it.

A complete pile of DRIVEL and UTTER ******** written by god knows what
****wit in Sony's marketing department after drinking far too much Saki is

** EXACTLY ** what it IS !!!!



Now go drop ****ing dead

- YOU ****WIT POS

TROLLING POMMY MORON !!




...... Phil

Phil Allison wrote:
"keith ratbag = utter ****ING MORON from HELL "


That is strange because Sony only considered it a medium quality product,
** Absurd CRAPOLOGY !!!!!!!!!!!!!!!!


as the name indicates - 101 binary for 5 or 5 out of 10. If you don't
believe it check this link:-

http://www.sony.net/Fun/SH/1-20/h5.html

** Complete pile of DRIVEL and UTTER ******** written by god knows
what ****wit in Sony's marketing department after drinking far too much
Saki !!!
ROFL,


** Why so funny - you are the one who is making a huge error

- you RIDICULOUS POMMY ****HEAD !!

That page is clearly from some dopey puke in Sony *marketing*

- so it is naturally 100% ********.

Only the congenitally retarded would believe one word of it.

And YOU are certainly one of them !!!!



I think that I'd take Sony's version of events...


** That is NOT any kind official version from Sony.

See the word " Fun " in the link - ****wit ?????

It also looks like a dodgy translation made from Japanese.

Only the congenitally retarded would believe one word of it.

A complete pile of DRIVEL and UTTER ******** written by god knows what
****wit in Sony's marketing department after drinking far too much Saki is

** EXACTLY ** what it IS !!!!



Now go drop ****ing dead

- YOU ****WIT POS

TROLLING POMMY MORON !!

Still deleting bits that can't explain? carry on by yourself if you
wish, I hear that you are good at paying with yourself, I have better
things to do than sling insults with hypocrites like you.

Phil Allison wrote:
"keith ratbag = utter ****ING MORON from HELL "


David Looser wrote:

But Philips were using 4x oversampling, whereas Sony weren't using
oversampling in the CDP101. So in terms of dynamic resolution it's about
even.
I suppose that shows how shortcomings in one area can lead to advances in
others,


** Ridiculous and meaningless PUKE .


but, lets face it,


** A phrase that invariably indicates that a GREAT BIG LIE
is about to come next.

And you are not about to be disappointed on that score.


in spite of the comments by some enthusiastic owners, neither is up to the
quality of modern units.


** VOILA !!!!!!

Like magic, one * GREAT BIG ****ING LIE * appears.




Now go drop ****ing dead

- YOU ****WIT TROLLING MORON !!




..... Phil




Carry on by yourself if you wish, I hear that you are good at paying
with yourself, I have better things to do than sling insults with
hypocrites like you.

In article , Fleetie
wrote:

Another idea would be to use an electron gun. Electrons don't propagate
well through air, because they collide with air molecules. This effect
would increase with increasing local air pressure and density, again
reducing the received signal.

I recall reading about one of these around 4 decades ago. The idea was to
put a beta-emitting isotope on a central pillar and measure the variations
in current reaching a surrounding (open ended) tube to determine the sound
pressure variations.

No idea if it failed to become popular because it worked poorly, or because
it relied on 'evil' radiation. :-)

Slainte,

Jim

--
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