Last updateMon, 29 Jan 2018 2pm


Introducing – Tools for Cinema Quality Assurance


Cinema Test Tools for the non-Technical Manager – Post Installation Quality Assurance Has Begun

Cinema Test Tools is a free resource for the cinema industry, tuned most particularly for the non-technical manager. The tools include several DCPs, all with interesting means of testing the sound and picture quality for the interested by lightly trained staff. The lessons on sound and light are written to provide a foundation to communicate with the technician who must respond quickly and well to the information that they discover.

The key is a free Managers Online Walk Through Checklist that correlates with the many DCPs. It helps bring an understanding of the many nuances of the auditorium's situation in a straightforward way. 

Hardware and Software, Miscellaneous. Typically, connecting equipment that doesn't fit into the other categories.

Iosono Surround Sound - a perfect companion to 3D releases?

Developed by Germany’s Fraunhofer Institute, Iosono Surround Sound is a new encoding and delivery format for digital cinema based on research into wave field synthesis.

Since post facilities need to use existing rerecording consoles that feature limited output busses and panning, the Iosono format currently uses a Nuendo add-on which accepts up to 32 individual sources or groups of sources that can be level-balanced and panned anywhere within a horizontal soundfield using a customised user interface. The resultant 32 data tracks carry a representation of the encoded sound sources to the final venue, and currently are carried on the last eight tracks of the DCI Specification, using 4:1 HD-AAC lossless compression.

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NIST logo, smallCompliance in DCinema means compliance with the details of several standards groups and organizations. Video compression and Decompression will be compliant with JPEG 2000, a set of standards of the Joint Photographic Experts Group, audio formats are specified by AES (Audio Engineering Society) formats and encryption within the Advanced Encryption Standard of the National Institute of Standards and Technology (NIST) and the Federal Information Procession Standards (FIPS). Of course, the over-riding standards group who tied all the nuance together is the Society of Motion Picture and Television Engineers (SMPTE).

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3Questions - Laser Light Engines

3Questions with LLE logoWhen we think of a digital cinema projector's light path, we non-optical designers consider the lamp and reflector housing, the condenser lenses and prism assemblies, the DLP or LCOS chip themselves and the lens. There are obviously clever bits in between, for example the optics that will strip the UV and IR from the lamp, physical slits for the light to pass through, as well as techniques for balancing the lamp output for the proper levels of R, G and B.

There is a word that gets used by optics people – etendue – which points to certain characteristics of light that requires the balancing of quantity and angles in a manner that matches the most refined part of the system (in this case the DLP/LCOS device.) This etendue inherently restricts the ability to use more brut force on one end to get more quality light at the other end.

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The ABCs (and 3Ds) of HDMI 1.4a

Just when you were getting used to HDMI 1.4, here comes the latest version, which adds a little "a" to the equation.

Released in March 2010, HDMI 1.4a is this latest version of High-Definition Multimedia Interface (HDMI). It's also the coolest, because it's the one that will bring 3D technology into the home.

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Many of us are the technology equivilents of trans-spotters. Here's cool stuff from other expertises.

HDMI 2 is going to be released soon...and we mean to tell you about it and a whole lot more.

Help with connecting the dots...