Film-Tech Cinema Systems
Film-Tech Forum ARCHIVE


  
my profile | my password | search | faq & rules | forum home
  next oldest topic   next newest topic
» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » cp50 prob/questions (Page 4)

 
This topic comprises 5 pages: 1  2  3  4  5 
 
Author Topic: cp50 prob/questions
Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 02-17-2002 09:40 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Brad get Joe to get out the photoshop anyway

 |  IP: Logged

Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 02-17-2002 09:41 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Guys, Fortunately its not a constant problem but it has been enough of a pain to warrant serious consideration before I push,,,er I mean place any more SRD systems out there. The same goes for digital based processors. In the last two years I've had enough CP-500's dump on me to last a lifetime. They are all now left on 24/7 with back up supplies so they don't dump. I've also trained at least one customer on how to re-load the setup with the Load500 software so I don't have to do the 820 mile round trip just for that.

All of the films in a three state area come out of SLC. I do not have much of a problem in Colorado though, at least so far.

Hey, Photoshop is not such a bad idea at all, I just got the 6.0.1 upgrade too. Could the SRD tracks be photoshoped back to normal? Heck, they could at least be sharpened and gamma corrected all automatically too. Darn, this version can even be automated!
Mark Still @ Homebutnotforlong
P.S.
In case none of you have figured out why I use the @ GTS or @ what ever feature, its is cause my last name is so darn long that no one can pronounce it or let alone spell it correctly anyway! I am also hiding from those funny guys that ride aound here on bicycles that do recruting. Sorry I'll keep my last mane to myself as long as they're on the loose!


 |  IP: Logged

Wes Hughes
Expert Film Handler

Posts: 175
From: Raleigh, NC, USA
Registered: Aug 2001


 - posted 02-17-2002 09:51 PM      Profile for Wes Hughes   Email Wes Hughes   Send New Private Message       Edit/Delete Post 
MUST plug the CP-650's. I have 5 in service for two years...from what I understand I was one of the first handful of theatres to install them. Hands down my first choice (coupled with penthouse reader only) for a cinema sound processor.

 |  IP: Logged

Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 02-17-2002 09:53 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Wes, What other processors did you try out before selecting the 650?
Mark @ Home

 |  IP: Logged

Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 02-17-2002 09:57 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Mark,

Slanderous? Certainly not. But I don't necessarily agree with you that the prints were necessarily at fault. In just what way were they at fault? Was the density off? Did the blocks move into the perforation area or move laterally out of range? Was the azimuth out of range...just what was so wrong with them?

As to how good you are on tweeking the SRD (or SDDS) systems as compared to myself, I can not say. I can say that I have not had the problems you are describing. I do tend to do more than just a "basic" alignment though. I even get SDDS tracks to run reliably...only the 2000 series spaz have I not been able to control...the 3000 series systems have been solid. (and not to let DTS feel left out, no problems getting them running at their best either).

As to the GTS pricing, put it in the Buy/Sell section not as part of a film-handlers forum information. I'll have to do a search but I recall a reference or two to dealer pricing and that is supposed to be confidential.

I'm done.

Steve

------------------
"Old projectionists never die, they just changeover!"


 |  IP: Logged

Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 02-17-2002 10:08 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Steve,
Have had damaged film(new in can), Laterally misprinted, fogged film, and completely lightstruck soundtrack area only(this one was odd). Can't remember seeing a film with bad azimuth. I had a hunk of the laterally misprinted one for quite a while. It was pretty pathetic to see it. Something happened in the darkroom on that one!
Mark @ Home

 |  IP: Logged

Joe Redifer
You need a beating today

Posts: 12859
From: Denver, Colorado
Registered: May 99


 - posted 02-18-2002 02:10 AM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
I don't need Photoshop. What's going on is apparently quite obvious. Check out Mark G lookin' at Steve's toosh in Guttag's member photo while Steve gives the camera his bedroom eyes. Coincidence? And look at Mark G's photo. Think Mark G is pointing at Christie spray paint? Nope. He's pointing at the hotel room in the distance where Steve is anxiously awaiting him.


 |  IP: Logged

Ray Derrick
Master Film Handler

Posts: 310
From: Sydney, Australia
Registered: Sep 2001


 - posted 02-18-2002 08:58 AM      Profile for Ray Derrick   Email Ray Derrick   Send New Private Message       Edit/Delete Post 
I am almost afraid to open my mouth again, at least in this thread, but here goes anyway..

Firstly, sorry if any of my comments were responsible for triggering the "spirited exchange" between Mark and Steve. Mark, thank you very much for your generous comments, they are very much appreciated. Steve, you know I value and respect your opinions and I regret that we do not always see eye to eye, but it would be a boring world if we all agreed on everything.

Secondly, I just wanted to clear the air regarding my view on the relevence of playback standards to the original post in this thread. Since Dolby became involved with film soundtracks and to their eternal credit, there have been well defined standards which many of us in the industry have supported and tried to maintain or improve upon. The difficulty lies in soundtracks from the pre-Dolby era, when standards were few and far between and records as to what standards and methods were applied are not so readily available.

The approach taken by Dolby for handling "legacy" soundtracks was a reasonable one, but one which compressed more than half a century of evolving technology into one solution, Dolby's Academy filter. The filter is applied in two forms, one for optical and one for magnetic the latter being a sort of half strength version of the former. The problem with this approach is that it assumes the worst case for ALL soundtracks, so films mixed in the early 1970's get the same treatment as films mixed in the 1940's.

The case for a fixed optical Academy filter is more justifiable than the magnetic filter, because there was a pre-emphasis applied to optical mono films which theoretically needed de-emphasis on playback, a situation that does not however apply to magnetic. I believe there is a good case to make the magnetic filter variable and/or maybe even apply single-ended noise reduction techniques to reduce noise and hiss on very old or abused prints. We have been designing just such a system for our Panastereo CSP4600 magnetic processor.

Franky I had not considered applying this to optical mono, at least until I read Dave's post, and his observations raised the possibility that maybe the optical filter deserved a closer look.

That's it! I am not advocating changing the way films are played in a general sense, as Steve seems to have assumed, I am simply for trying to get the very best results possible from pre-Dolby films and not just writing them off as "they sound lousy and that's the way they are supposed to sound".


------------------
Ray Derrick
President/Chief Engineer
Panalogic Corporation Sydney, Australia
Phone: 61 (0)2 9894 6655 Fax: 61 (0)2 9894 6935


 |  IP: Logged

Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 02-18-2002 09:43 AM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Ray,
It definately had nothing to do with anything you said. All of us here really appreciate all the help and suggestions you post.
Steve and I are the best of friends and have been for along time. As a result we can do this sort of exchange with out ending up blowing up one or the others home. Hope to see you at Showest!

I've pretty much made up my mind to seitch over to your products in all future installations. I was once one of those that had jumped on the digital bandwagon however I've gotten back off and for very good reasons. I'm back to the school that would prefer to keep any digital attachment in a seperate box.
Mark @ GTS

 |  IP: Logged

Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 02-18-2002 11:14 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
>>"Steve, you know I value and respect your opinions and I regret that we do not always see eye to eye, but it would be a boring world if we all agreed on everything."<<

You got that right!

The variable filter is probably the best approach (bass and treble, if you ask me)

As to pre-Dolby films as they go throughout the decades from sound on film I would say that the sound systems of the era certainly did change with the late '40s early '50s seeing a turning point but having measured many of these old theatres with the older sound systems, the frequency responses were not too flattering and clearly dialoge was the most emphasised portion of the frequency spectrum. I think the Academy filter on the Cat. 109 pretty well represents such systems. It is logical to presume that the films were mixed for such systems, at least to some degree.

Presuming your new filter design allows for this (and lesser filtering) then I think the best of all worlds will be had.

Steve

------------------
"Old projectionists never die, they just changeover!"

 |  IP: Logged

Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 02-18-2002 11:16 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Actually Dolby allowed for that anyway with the cleanup mode that the cat22 can be put into

 |  IP: Logged

Ray Derrick
Master Film Handler

Posts: 310
From: Sydney, Australia
Registered: Sep 2001


 - posted 02-19-2002 06:53 AM      Profile for Ray Derrick   Email Ray Derrick   Send New Private Message       Edit/Delete Post 
Steve, we have no intention of modifying the optical Academy filter in our processors, it is only the mag filter that I was referring to.

Gord, I gather you are referring to that little red box with the sliders (a Cat whatever, I've forgotten the number) that you can plug a Cat 22 card into and use it for single ended noise reduction. I used to use one in post production in my days as a mixing engineer, very handy device. However that is a studio tool not a cinema product.

------------------
Ray Derrick
President/Chief Engineer
Panalogic Corporation Sydney, Australia
Phone: 61 (0)2 9894 6655 Fax: 61 (0)2 9894 6935


 |  IP: Logged

Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 02-19-2002 09:33 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
The origanl 360 cinema unit that held a cat 22 had a button called cleanup that did exactly what the variable cat43? redbox did but in a fixed mode for dirty and scratched optical tracks

 |  IP: Logged

Ray Derrick
Master Film Handler

Posts: 310
From: Sydney, Australia
Registered: Sep 2001


 - posted 02-19-2002 06:36 PM      Profile for Ray Derrick   Email Ray Derrick   Send New Private Message       Edit/Delete Post 
Well Gord, I guess you learn something every day.

------------------
Ray Derrick
President/Chief Engineer
Panalogic Corporation Sydney, Australia
Phone: 61 (0)2 9894 6655 Fax: 61 (0)2 9894 6935

 |  IP: Logged

Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 02-19-2002 06:54 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
A wise man once told me "the day that you cease to learn you die"
So I desperatley try to learn something everyday and as insurance leave part of the chapter unread till tomorrow

 |  IP: Logged



All times are Central (GMT -6:00)
This topic comprises 5 pages: 1  2  3  4  5 
 
   Close Topic    Move Topic    Delete Topic    next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:



Powered by Infopop Corporation
UBB.classicTM 6.3.1.2

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.

© 1999-2020 Film-Tech Cinema Systems, LLC. All rights reserved.