Tag Archives: projectionist

Testing!!! Audio Quality Control Possible (Meyer Sound)

a specialist in high quality auditorium sound which has been introducing a cinema-centric line for the last two years. They have worked with another specialist company, NTi Audio, a group that designs and manufactures handheld audio analyzers for the professional market.

The press release describes the new cinema meter option as adding a software package which includes a MeyerSound test script that can be used for tuning any cinema system. Test signals can be sourced through storage in the cinema system or from the NTi MR-PRO generator.

NTi Sound Meter with Meyer Cinema SoftwareGet the big picture here and here.

 

This article will be updated as testing details and price information is given. The screen shot is provocative though, with a question on the number of seats in the room. Obviously the Meyer group put into the NTi the experience they gained from the penultimate product of the field, their SIM 3 System (Source Independent Measurement).

Testing!!! Audio Quality Control Possible (Meyer Sound)

a specialist in high quality auditorium sound which has been introducing a cinema-centric line for the last two years. They have worked with another specialist company, NTi Audio, a group that designs and manufactures handheld audio analyzers for the professional market.

The press release describes the new cinema meter option as adding a software package which includes a MeyerSound test script that can be used for tuning any cinema system. Test signals can be sourced through storage in the cinema system or from the NTi MR-PRO generator.

NTi Sound Meter with Meyer Cinema SoftwareGet the big picture here and here.

 

This article will be updated as testing details and price information is given. The screen shot is provocative though, with a question on the number of seats in the room. Obviously the Meyer group put into the NTi the experience they gained from the penultimate product of the field, their SIM 3 System (Source Independent Measurement).

Testing!!! Audio Quality Control Possible (Meyer Sound)

a specialist in high quality auditorium sound which has been introducing a cinema-centric line for the last two years. They have worked with another specialist company, NTi Audio, a group that designs and manufactures handheld audio analyzers for the professional market.

The press release describes the new cinema meter option as adding a software package which includes a MeyerSound test script that can be used for tuning any cinema system. Test signals can be sourced through storage in the cinema system or from the NTi MR-PRO generator.

NTi Sound Meter with Meyer Cinema SoftwareGet the big picture here and here.

 

This article will be updated as testing details and price information is given. The screen shot is provocative though, with a question on the number of seats in the room. Obviously the Meyer group put into the NTi the experience they gained from the penultimate product of the field, their SIM 3 System (Source Independent Measurement).

CST 6th Day of Techniques…DCinema

The presumption is that a projector will be delivered, set-up and fit to the screen. But as the woman pointed out, more and more facilities are getting the projector dropped of, the picture is aligned to the screen and everything else is good to go…no colorimetry calibration.

She mentioned that many maintenance contracts lacked this initial colorimetry calibration. The odd part is that many of the maintenance agreements preclude engaging a 3rd party for this calibration.

The installation groups on the panel did point out that they include a yearly calibration.

[Fill in your own comments about DCI and SMPTE specs and how often light obeyed annual rules. How many bulbs are changed in that period of time? Did any of the bulbs get put in off-kilter? How often are higher rated bulbs swapped in to support 3D? Digital Cinema Initiatives (DCI) – DIGITAL CINEMA SYSTEM SPECIFICATION, VERSION 1.2]

Your author has been hearing this story for 5 years, at least. The first time he heard it, it really struck him as odd since all the systems that he was involved with setting up in the 2002-2006 era were all set up with an expensive spectroradiometer and a skilled operator. The digital world brings a lot of advantages, but in this area there are many things that are not objective.

Perhaps everyone is using the SMPTE DProVe system? DProVe | Digital Projector Verifier

This article is a work-in-progress since it is simple to go to a thousand tangential problem areas from these few facts. There is even talk of a breakthrough on the CNC silver screen problem.

There may be a lot of overtime for the SMPTE Police.

CST 6th Day of Techniques…DCinema

The presumption is that a projector will be delivered, set-up and fit to the screen. But as the woman pointed out, more and more facilities are getting the projector dropped of, the picture is aligned to the screen and everything else is good to go…no colorimetry calibration.

She mentioned that many maintenance contracts lacked this initial colorimetry calibration. The odd part is that many of the maintenance agreements preclude engaging a 3rd party for this calibration.

The installation groups on the panel did point out that they include a yearly calibration.

[Fill in your own comments about DCI and SMPTE specs and how often light obeyed annual rules. How many bulbs are changed in that period of time? Did any of the bulbs get put in off-kilter? How often are higher rated bulbs swapped in to support 3D? Digital Cinema Initiatives (DCI) – DIGITAL CINEMA SYSTEM SPECIFICATION, VERSION 1.2]

Your author has been hearing this story for 5 years, at least. The first time he heard it, it really struck him as odd since all the systems that he was involved with setting up in the 2002-2006 era were all set up with an expensive spectroradiometer and a skilled operator. The digital world brings a lot of advantages, but in this area there are many things that are not objective.

Perhaps everyone is using the SMPTE DProVe system? DProVe | Digital Projector Verifier

This article is a work-in-progress since it is simple to go to a thousand tangential problem areas from these few facts. There is even talk of a breakthrough on the CNC silver screen problem.

There may be a lot of overtime for the SMPTE Police.

CST 6th Day of Techniques…DCinema

The presumption is that a projector will be delivered, set-up and fit to the screen. But as the woman pointed out, more and more facilities are getting the projector dropped of, the picture is aligned to the screen and everything else is good to go…no colorimetry calibration.

She mentioned that many maintenance contracts lacked this initial colorimetry calibration. The odd part is that many of the maintenance agreements preclude engaging a 3rd party for this calibration.

The installation groups on the panel did point out that they include a yearly calibration.

[Fill in your own comments about DCI and SMPTE specs and how often light obeyed annual rules. How many bulbs are changed in that period of time? Did any of the bulbs get put in off-kilter? How often are higher rated bulbs swapped in to support 3D? Digital Cinema Initiatives (DCI) – DIGITAL CINEMA SYSTEM SPECIFICATION, VERSION 1.2]

Your author has been hearing this story for 5 years, at least. The first time he heard it, it really struck him as odd since all the systems that he was involved with setting up in the 2002-2006 era were all set up with an expensive spectroradiometer and a skilled operator. The digital world brings a lot of advantages, but in this area there are many things that are not objective.

Perhaps everyone is using the SMPTE DProVe system? DProVe | Digital Projector Verifier

This article is a work-in-progress since it is simple to go to a thousand tangential problem areas from these few facts. There is even talk of a breakthrough on the CNC silver screen problem.

There may be a lot of overtime for the SMPTE Police.

DCinema Projectionist and Tech Survey – November 2011

Hello; a friend is giving a presentation at Camera Image Conference at the end of November 2011.

We would appreciate it if you could give us as many answers that you have time for, and ask friends to fill in the form. Be as detailed or quick as you can.

Many thanks.

Go to this Google Form Site, please:

DCinema Projectionist and Tech Survey – November 2011

What Is A Projectionist? In The Digital Age

In addition to being the last expert in the post-production chain, the projectionist also is the last person in the chain that starts with the security experts who literally keep the keys to the safe. 

No less urgent is the organization of the presentation, which begins with the negotiations between the studios and distribution and advertising groups and involve the exhibition management. Soon this will include the added duty of presenting more and better closed and open caption presentations for an audience who have been largely left out of the mainstream cinema theater culture, the deaf, hard of hearing and visually impaired audience. 

Add to that the mixing in of various forms of alternative content, which means satellite feeds and interface boxes with very nuanced choices (neither the NOC nor the cinema manager is going to change from side to side from sequential or make certain the encryption code is set right for a particular show.) Bluray means audio changes, and last years inexpensive cable boxes won’t work soon in the cinema. [Unmentioned: a truly professional satellite presentation always has backup everything – dish, electronics, test gear. The kit is incredibly cheap, especially compared to returning the cost of premium tickets. Of course, this should never be brought up since we don’t want to scare the cinema owner who already has made a 4X investment in dcinema gear compared to the film equipment it is replacing. (“We are solving a problem that didn’t exist”, as one studio exec said.)] 

In the rapidly disappearing days of film presentation, the projectionist assembled the film from multiple cans, put it onto the mechanical film chain, and made certain that the focus was correct. In the best of cases they made certain that the gates and pull-downs and pulleys weren’t physically harming the film, although there wasn’t much that could be done to prevent the enormous amounts of heat from bringing the plastic to its melting point, with its two harmful effects: desaturating the colors from the film, and creating a dust magnet from the electrostatic condition of all that heat and change that melts the dust into the cooling film. Except for keeping the bulb fresh and the voltage up, there wasn’t much more that a person could do for the picture. [We are, but we shouldn’t be, avoiding the audio topics of dcinema in this document.]

With digital projectors, all of the parameters of the color and luminance are available to perfect. There is no reason for a properly sized system to be anything less than up to SMPTE/ISO specifications. According to some manufacturers, today’s xenon bulbs don’t really even gain much more time or use less electricity by tweaking them down.

The recent kerflufle brought on by the Boston Globe article points to other issues that a projectionist should be solving. 3D alone is an issue that involved color shifts and brightness issues that should be controlled between each movie. When cinemas play 2D and 3D on the same screen, it isn’t surprising that something will suffer. It shouldn’t be the audience, but that is what is happening.

Then there is the system itself. Not the media player (SMS)/projection/audio/satellite feed/bluray player system at every port hole, but the IT system that holds all the SMS systems to one theater management system – with all the projectors filtering data back as required for keeping logs and ‘state of health’ info to network operation centers (NOCs). The projectionist is the person who has to respond quickly and well to the experts at the other end. For all the hype about what can be monitored at a NOC, it is hundreds of times better if there is a person to communicate with at the other end who is versed in perceiving the extant situation.

Perhaps there are people who have been around banks of computers that work flawlessly for days and months and years. But more common is the reality that computers always need some attention from someone on-site. 

[The unwritten topic concerns the issue of how well D-Cinema systems are defended in this age when nothing seems sacred. There are weekly reports about corporations with elaborate staff and technology, who still have secure information exposed. So far, dcinema has been flying under the radar, but with ugly habits. The US military took two years to clean up vital systems after an infected (probably targeted) USB stick put secret data into criminals control. See: Infected USB caused biggest US military breach ever.]

Point being, a trained projectionist in the digital age is a Solution to many a Why. 

Yet when asked, two large cinema chains acknowledged that they didn’t have an updated job description for Projectionist. Booth Monitor was one recently seen posting.

What is a projectionist in the digital age? What are the responsibilities? Is it reasonable that these responsibilities will get fewer as the technology evolves? 

[Update] Scathing 2D/3D Light Boston.com Article…True?

There are many problems with 3D presentations, especially those with the supposedly high-gain, polarizing-friendly ‘silver screens.

(See: 
23 degrees…half the light. 3D What? 
Scotopic Issues with 3D,  
Silver ScreensRealD and Polaroid — Possible Promise PR). 

But at first glance through the breathy-for-scandle article, it seems like there is un-required hyperbole that makes one want to wait for Sony’s and RealD’s response.

This also amplifies the need for professional projectionists constantly in the projection booth, and a method for maintaining consistent quality control. If it takes a grass roots effort because of articles like this, perhaps it is OK.

But the real solution is probably to have the same “Constant Vigilance” policy for post-installation quality control as there is for security – an effort that has to come from studios, distributors, and exhibition management. In a sense, those exhibitors who signed VPF deals with studios have signed that they will make their exhibitions according to the SMPTE specification. Perhaps if the grass root effort wore t-shirts that said “48 Candelas or not at all”. 

Here are a couple of shots of the lens and the projector, one with the RealD polarizers over the lenses. One suspects that this is sometimes the problem that is being talked about. 

Sony Projector with Dual lens  removed

RealD Polarizers over Sony dual lens system

There are other shorter articles with a little more data at the links below. Sometimes the comments are the most interesting part, though a lot of them are just steam…though steam that the industry should be aware of.

Are 3D-capable theaters delivering dim 2D movies? – Digital Trends

Report: 3-D Lenses and Lazy Theaters Dim 2-D Projection by Up to 85 Percent | Movieline

Cinema chains dimming movies “up to 85%” on digital projectors – Boing Boing

Movie theaters could screw up your 2D movies by leaving the digital projector set up for 3D — Engadget

Finally, the graphic from the article: Just looking at the curve of the bulb life and the description of the Polarizing is enough to make me wonder about the truthiness of the entire article.

Sony 3D and RealD Light Problem according to Boston globe article

Asserted to be a Sony Press Release – 1 June 2011

The projectionist that Boston.com spoke with clearly has little to no understanding of how the systems work and is likely a manager that also works in the booth to start shows, the projectionists of yore are long gone in most cases. While the 3D lenses in the Sony are polarized, the images do not alternate, they are projected at the same time and split through a prism system in the lens, but really that’s besides the point. All of the 3D systems we have installed have been selected based on a number of variables such as screen size and auditorium length. Based on that information we can determine if the Sony projector will be able to light the screen to SMPTE spec. The SMPTE specifications on light are very clear and the DCI specification for digital equipment follows in line with that. Basically 2D digital projection should have 14 footlamberts (a measurement of reflected light) at the center of the screen, in comparison 35mm spec is 16fl of light through an open gate (meaning no film and no shutter movement) if a projector is installed to meet that spec the light output of the digital will be seen to exceed that of film. in any house where we cannot make the required light we use a bigger system, most recently these have been made by Barco.

In addition to the light levels the digital projectors are color corrected to within ±.005 of the DCI color spec. This means that when we correct with the polarizers in place on the Sony system for 2D movies that the color will be virtually identical to that seen on a DLP projector without a polarizer in the light path.

They also fail to mention some of the advantages of the way the Sony system works, such as reduced eye fatigue. DLP systems alternate images as implied in the article, they do so by electronically shifting the polarizer state for the left and right eye 3 times per frame per second. This ultimately results in the same situation you find with shutter glasses in that there is flicker that causes headaches and sometimes motion sickness, the difference is that the glasses do not actively perform this task, but close on eye while watching a 3D film ad you may see it (you may not, the system is projecting 144fps or 72 per eye, though make no mistake the content is still 24fps). The Sony system does not have this issue as it splits the 2K image across the top and bottom of the chip and then overlays them on the screen, the dual polarizers on the Sony are completely passive with not electronics involved.

To give a brief background of my knowledge base, I have been a technician for going on a decade, I have been installing digitals since the first “wide” roullout of 100 screens that Disney purchased for Chicken Little 3D. I have industry certifications through Sony, Barco and Dolby on D-Cinema equipment as well as my department’s highest level of internal certification and I am Net+ and A+ certified.

As far as why the film and digitally projected showing had such a difference, I think it’s likely one of two things, the 35mm could have been way above spec, which can happen easily due to the way the lamps are adjusted in many cases or the lamp in the digital was not adjusted properly. The biggest issue I run into is a lack of training within the theaters. I do my best to train when the systems are installed or when I am onsite for service calls, but these days so many people get rotated through the booth that should a lamp go out Friday night they just slap one in without making any of the necessary adjustments.

I’d like to know what was wrong with the management of that theater though, how do you host a premiere without making sure everything is perfect first? I myself haven’t done any due to my location within the country, but I have talked to a number of my coworkers about them and they are on site days before they happen making sure every detail is perfect. In fact many directors want to specify special color corrections for their premieres in digital or ask that sound be tweaked out of spec and so on.

I think the biggest problem digital cinema faces is that the operations departments of most chains think we can take a hands off approach to this equipment, and that is not currently the case. Proper lamp maintenance is crucial in any theater, but even more so in digital. 5-10 years from now when the laser light sources are in the field no-one will ever have need to go in the booth outside of cleaning the port glass and the maintenance calls myself and my cohorts perform.

 

Purpose and Contact

There are many tangential groups who create and capture and manipulate the bits, from one lens at the capture point to the other at the exhibition point. There are a lot of specialty magazines and blogs and a lot of distractions in one’s own field to keep focused upon.

We feel that there is a blank spot for people who want to get the highlights of the many various and closely aligned segments that are just outside their daily purview.

Thus, Industry Online.

Our goal is to focus more on tech news and white papers than on commercial press and sales press releases. We won’t have advertising, but we will allow vendors to post special sales (when that directory and page is set up.)

The idea for this tool was formed when Marvin Hall gave a seminal SMPTE presentation at NAB 2007 which spoke to the issues that Modern Video/Film had to go through on each piece that they take in, massage and kick out. Clearly, among the pages of standards and constant deadlines, among the headlong-rush of technology in every particular sub-category, there seems to be a need for cross communication. 

Since we are all forced to be computer experts and help protect copyright interests, we’ll also attempt to keep an eye out for important security information.

And, of course, training—the field is not only fast moving, but we are requiring IT and digital expertise in places where mechanical skill was more important. The long hours of creating standards, and the benefits derived, will be for nought if they and best practices aren’t passed along.

So, we thank you for this opportunity. Your editor began in the pro-audio world in the 70’s. Since then he has sold, installed and trained people on entertainment technology equipment in film and TV studios around the world. He remembers how complicated and expensive motion tracking and 16 gig RAIDs were in the 90’s. In 2002 he was part of the installation groups who installed the first hundred digital cinema systems for the Star Wars II release. Since then, hundreds of HD-SDI cables and projectionist training hours later, he presents this journal.  

 

If you see something interesting, pass it along. If you want to cut out a space to broadcast a message, please feel free to use this forum. Also, we take advice well. Please make any comments, requests or complaints to:

Charles ‘C J’ Flynn

OpsCenter Technologies, Inc.  |  Cheyenne, WY
Internet Marine, SARL    |    Sophia Antipolis, FR

cjflynn @ ops center tech .com <remove spaces, of course>

This news magazine is part of the OpsCenterTechnologies online publishing empire (sic – in many ways).

DCinemaTools was introduced in June of 2009, but not live until mid-January 2010.