Hi to all,


ever wondered how Dolby Digital 5.1 sound is ACTUALLY carried by a 35mm
cinema film ?

Turns out the 320 kbit/s DD data stream is encoded onto square, optical
grids of about 60 x 60 bits & very cunningly fitted in * between* the
sprocket holes !!

http://upload.wikimedia.org/wikipedi...udio_macro.jpg

The embedded Dolby logo is cute dontcha think ?

A tiny CCD camera in the projector captures each 2.4mm square image, 96 of
them per second, so it can be processed into 6 channels of audio.

The other tracks you see are Sony SDDS, L/R stereo analogue and timing
pulses for DTS so the CD can be synched with the movie.

Such a multi-format movie can be shown by any cinema in the world and exact
copies are made by ordinary, chemical film processing.

Betcha you ALL knew that already ....





........ Phil

In article ,
Phil Allison wrote:
Hi to all,


ever wondered how Dolby Digital 5.1 sound is ACTUALLY carried by a 35mm
cinema film ?

Turns out the 320 kbit/s DD data stream is encoded onto square, optical
grids of about 60 x 60 bits & very cunningly fitted in * between* the
sprocket holes !!

http://upload.wikimedia.org/wikipedi...udio_macro.jpg

The embedded Dolby logo is cute dontcha think ?

A tiny CCD camera in the projector captures each 2.4mm square image, 96
of them per second, so it can be processed into 6 channels of audio.

The other tracks you see are Sony SDDS, L/R stereo analogue and timing
pulses for DTS so the CD can be synched with the movie.

Such a multi-format movie can be shown by any cinema in the world and
exact copies are made by ordinary, chemical film processing.

Betcha you ALL knew that already ....

Film offers all sorts of possibilities. One of its interesting properties
is a known long storage life - magnetic anything deteriorates sooner, and
optical media like the CD is also rather an unknown quantity - especially
the recordable type.

When ITV was a 'proper' organisation, their labs at Teddington Studios
were developing a system for storing digitally TV colour pics and stereo
sound on 16mm B&W film - which is a cheap material for archiving, with a
projected life if properly stored of over 100 years. ISTR it was capable
in theory of handling HDTV too.

--
*If at first you don't succeed, redefine success.

Dave Plowman London SW
To e-mail, change noise into sound.

On Sat, 02 Dec 2006 10:39:25 +0000 (GMT), "Dave Plowman (News)"
wrote:

In article ,
Phil Allison wrote:
Hi to all,


ever wondered how Dolby Digital 5.1 sound is ACTUALLY carried by a 35mm
cinema film ?

Turns out the 320 kbit/s DD data stream is encoded onto square, optical
grids of about 60 x 60 bits & very cunningly fitted in * between* the
sprocket holes !!

http://upload.wikimedia.org/wikipedi...udio_macro.jpg

The embedded Dolby logo is cute dontcha think ?

A tiny CCD camera in the projector captures each 2.4mm square image, 96
of them per second, so it can be processed into 6 channels of audio.

The other tracks you see are Sony SDDS, L/R stereo analogue and timing
pulses for DTS so the CD can be synched with the movie.

Such a multi-format movie can be shown by any cinema in the world and
exact copies are made by ordinary, chemical film processing.

Betcha you ALL knew that already ....

Film offers all sorts of possibilities. One of its interesting properties
is a known long storage life - magnetic anything deteriorates sooner, and
optical media like the CD is also rather an unknown quantity - especially
the recordable type.

When ITV was a 'proper' organisation, their labs at Teddington Studios
were developing a system for storing digitally TV colour pics and stereo
sound on 16mm B&W film - which is a cheap material for archiving, with a
projected life if properly stored of over 100 years. ISTR it was capable
in theory of handling HDTV too.

Do you have any idea what the time ratio was - how many minutes of
digital they could store on how many minutes (when used normally) of
film?

d

--
Pearce Consulting
http://www.pearce.uk.com

"Dave Plowman ****ing Tenth Wit"


Film offers all sorts of possibilities.


** At enormous expense, compared to the alternatives.


When ITV was a 'proper' organisation, their labs at Teddington Studios
were developing a system for storing digitally TV colour pics and stereo
sound on 16mm B&W film - which is a cheap material for archiving,


** 10, 000s times more expensive than CDs or DVDs - you asinine pommy
twit.

What does 4 hours of film cost - you IDIOT !!



with a
projected life if properly stored of over 100 years. ISTR it was capable
in theory of handling HDTV too.


** ROTFLMAO !!

What an arrogant, know nothing, POMMY MORON !!




........ Phil

In article ,
Don Pearce wrote:
When ITV was a 'proper' organisation, their labs at Teddington Studios
were developing a system for storing digitally TV colour pics and stereo
sound on 16mm B&W film - which is a cheap material for archiving, with a
projected life if properly stored of over 100 years. ISTR it was capable
in theory of handling HDTV too.

Do you have any idea what the time ratio was - how many minutes of
digital they could store on how many minutes (when used normally) of
film?

I don't but will try and find out.

--
*What are the pink bits in my tyres? Cyclists & Joggers*

Dave Plowman London SW
To e-mail, change noise into sound.

In article ,
Phil Allison wrote:
"Dave Plowman ****ing Tenth Wit"

Didn't notice who I was replying to as you're usually in my killfile. And
thanks for reminding me why.

Film offers all sorts of possibilities.

** At enormous expense, compared to the alternatives.

You didn't really understand my comment, did you?


When ITV was a 'proper' organisation, their labs at Teddington Studios
were developing a system for storing digitally TV colour pics and
stereo sound on 16mm B&W film - which is a cheap material for
archiving,

** 10, 000s times more expensive than CDs or DVDs - you asinine
pommy twit.

And if those archived CDs don't work anymore when needed?

What does 4 hours of film cost - you IDIOT !!

You obviously have no idea of the possible value of an archived TV
program. It might sell for thousands of times the value of the stock.

with a projected life if properly stored of over 100 years. ISTR it
was capable in theory of handling HDTV too.

** ROTFLMAO !!

Try reading and understanding my original post. It's not too hard even for
the likes of you. As a concept, obviously. Not the theory of how it works
- way beyond you.

What an arrogant, know nothing, POMMY MORON !!

I'm delighted to be thought as such by you.

--
*A fine is a tax for doing wrong. A tax is a fine for doing well*

Dave Plowman London SW
To e-mail, change noise into sound.

On Sat, 02 Dec 2006 10:39:25 +0000 (GMT), "Dave Plowman (News)"
wrote:

When ITV was a 'proper' organisation, their labs at Teddington Studios
were developing a system for storing digitally TV colour pics and stereo
sound on 16mm B&W film - which is a cheap material for archiving, with a
projected life if properly stored of over 100 years. ISTR it was capable
in theory of handling HDTV too.

Cheap in its day perhaps. Particularly if you had a film processing
plant on the premises :-)

On Sat, 02 Dec 2006 13:37:25 +0000 (GMT), "Dave Plowman (News)"
wrote:

You obviously have no idea of the possible value of an archived TV
program. It might sell for thousands of times the value of the stock.

Or for tens of thousands times the price of cheaper stock. I know
you're arguing with an idiot, but keep it real:-)

In article ,
Laurence Payne lpayne1NOSPAM@dslDOTpipexDOTcom wrote:
You obviously have no idea of the possible value of an archived TV
program. It might sell for thousands of times the value of the stock.

Or for tens of thousands times the price of cheaper stock. I know
you're arguing with an idiot, but keep it real:-)

The cost of the stock is only one thing. The cost of constantly
transferring material as the storage medium fails quite another if you
take labour into account. Many early TV progs are onto the 5th generation
of storage medium. Often recovered from near worn out equipment kept going
by a prayer.

--
*Two wrongs are only the beginning *

Dave Plowman London SW
To e-mail, change noise into sound.

"Dave Plowman ****ing Pommy Tenth Wit"



Film offers all sorts of possibilities.

** At enormous expense, compared to the alternatives.

You didn't really understand my comment, did you?


** Sure I did - it was utterly ****ING stupid.

Just like **every** other ****ing stupid post you ever made.




When ITV was a 'proper' organisation, their labs at Teddington Studios
were developing a system for storing digitally TV colour pics and
stereo sound on 16mm B&W film - which is a cheap material for
archiving,

** 10, 000s times more expensive than CDs or DVDs - you asinine
pommy twit.


And if those archived CDs don't work anymore when needed?



** Yawn - yet another self serving pile of asinine, pommy ********.



What does 4 hours of film cost - you IDIOT !!

You obviously have no idea of the possible value of an archived TV
program. It might sell for thousands of times the value of the stock.


** ROTFLMAO !

What a totally, ASININE, hypothetical, ****WIT excuse for storing it data
on a CRAP medium that cost over 10,000 times more than DVD.

Bet this cretinous ** Plowman ** IMBECILE keeps all his smelly turds in
the family fridge !!!!

In case someone wants to peruse them in 100 years time !




with a projected life if properly stored of over 100 years. ISTR it
was capable in theory of handling HDTV too.

** ROTFLMAO !!


Try reading and understanding my original post.


** ROTFL !!!!!!!!!!!

I did, I have AND it made me ****ing PEEEEUKE !!!!!!!!!




What an arrogant, know nothing, POMMY MORON !!


I'm delighted to be thought as such by you.


** Hordes of ASD ****ed, pommy ****heads, just like you, need to be put
out of your collective miseries ASAP.

Mind you, NOT out of any concern for their putrid little lives, but out
of sympathy for all the innocent others whose pointless lives THEY make so
much worse than they have any need to be.



Drop stone dead - you ****ing **** head.






.......... Phil