Volume 3, Issue 11 — November 9, 2010

Education — Volume 3, Issue 11 — November 9, 2010


Volume 3, Issue 11 — November 9, 2010
 

Share
this issue
of rAVe!

Facebook
Twitter
StumbleUpon
Digg
reddit
del.icio.us

 AV Club
The Wall
By Greg Bronson, CTS-D

 Headline News
EPSON Debuts $450 SVGA Projector
Extron Ships Flat Field Ceiling Tile Speaker
Premier Mac Mini Adapter/Lock
SMART Sync FINALLY Recognizes Mac
ViewSonic Shows New 52" and 42" LCDs
Samsung Techwin Shows $780 Document Camera
Dukane Shows Five-Pound 2700-Lumen Projector
Newest M Series NEC Projectors Aimed at ED market
rAVe Founder to Debut All-New Digital Signage Seminar at ALMO E4 Show


Click here to read rAVe Education online
Click here to subscribe now!


Click above for more information


 

The Wall

By Greg Bronson, CTS-D

The Wall, by Pink Floyd, was both a creative musical production and a hugely popular album. The songs, as they were released for radio play, stood on their own melodious merit. And if you bought the double album, you were treated to equally creative deep cuts. And as a demonstration of the whole being truly more than the sum of its parts, the telling of Pink’s deepening isolation is vividly encapsulated through the metaphor of each piece being a “brick in the wall.”

While not in the same league as creating a rock opera, the front wall of a classroom is nonetheless a complex combination of parts that need to perform not only individually but must be optimized to do so together. Seemingly, this should be a relatively straightforward and repeatable task. But given the varying architectural, pedagogical and technical (not to mention financial) context, success is by no means guaranteed.

Some classroom front wall elements are the well-known “radio play” common design best practices. These are more scientific and must be mastered and applied to optimally function within real project challenges. For example, proper electronic image size must be determined (in general, sizing image height as an average of distance to furthest viewer divided by a factor of six). Along with this, is determining correct image aspect ratio (in today’s world, conventionally 16:10). And yet another primary screen design criteria is the height above finished floor for bottom of image to start (commonly about four feet). Not to be forgotten in “A”V design, is the audio. Speakers get placed to support uniformity of coverage (referencing no more than 6 db of variance across seating area) and proper volume required in the space (capable of 20 db above ambient noise level). Ultimately, actual designs are commonly detailed in floor, and reflected ceiling, plan drawings.

But other, less popular “deep cuts” design elements of the classroom are equally important. These are perhaps less scientific but must also be applied within the real life project challenges that determine the final degree of success upon completion. For example, what is the relative placement of whiteboard/chalkboards to digital display/projection screens? If they are expected to be used concurrently, in what proportion, and prominence will they be to each other? Where exactly should the primary instructor controls be placed, such that they are convenient and obvious? Does the sound system also promote localization (such that the sound “image” acoustically emanates from the visual source)? And as the designs are detailed, can front wall elevation drawings help with design/build coordination as well as enable the real end user to visualize what is forthcoming?

For the AV in a classroom to be considered successful, the various sub-systems that make up the AV must each be properly designed as well as optimized in the context of the project at hand. But that’s not enough, even if they are each the “best in class,” if the extra details that typify truly creative design are not also incorporated. Whether or not these extra elements fall within one’s own area of expertise or responsibility, understanding how our piece impacts (and is impacted) within the whole helps toward long term success… and avoids being a one hit wonder.

The views expressed in this column do not necessarily reflect the views of the authors’ employer(s), past or present.

Greg Bronson, CTS-D, applies AV technologies in the development of innovative learning spaces for higher education. Greg spent the first 10 years of his career as AV technician and service manager, with the past 12+ years as an AV system designer and project manager. Bronson currently works for Cornell University and has also worked for two SUNY (State University of New York) campuses as well as a regional secondary education service depot.  Bronson is the originator of concept for Infocomm’s Dashboard for Controls and has had completed projects featured in industry publications.    You can reach Greg at gregthetechie@netscape.net

Back to Top


Click above for more information


 

EPSON Debuts $450 SVGA Projector

Dubbed the VS200, the newest cheap 3LCD from EPSON provides SVGA resolution (800×600) and a claimed 2,300-lumen brightness at a price point of $429. The Epson VS200 includes the Instant On/Off feature, A/V Mute and Epson’s E-TORL lamp technology, which claims to last 5,000 hours in economy mode.  Want more information? Go here: http://www.epson.com/cgi-bin/Store/jsp/Product.do?BV_UseBVCookie=yes&sku=V11H391020

Cheap (low cost) in of itself is not a good or bad thing. However, if one’s needs or expectations are modest as it relates to performance specs, spending less for a product from a reputable manufacturer makes good common sense. 
–GB

Back to Top

 

Extron Ships Flat Field Ceiling Tile Speaker

Extron just announced the immediate availability of the FF 220T, a full-range sound field speaker for 8 ohm direct or 70/100-volt systems. The FF 220T joins the existing FF 120T and has Extron’s patent-pending Flat Field technology, which reduces beaming of mid and high frequencies directly under the speaker and that Extron says delivers consistent sound levels across the listening area. In addition, the FF 220T offers a wide dispersion area of 170 degrees, providing a wide room coverage pattern, which is especially important for rooms with low ceilings like you have in K-12 schools. Using a UL 2043 plenum rated, 2' x 2' x 3.25” (61cm x 61cm x 8.3 cm), aluminized composite enclosure, the FF 220T drops into standard suspended ceilings, providing quicker installations. 

Want details? Go to: http://www.extron.com/company/article.aspx?id=ffsad

The white paper at the site, on the Extron's Flat Field Technology, is interesting; likening how it works as similar to how a convex lens focuses light – in reverse. 
–GB

Back to Top

 

Premier Mac Mini Adapter/Lock

The Mac Mini computer has long been a staple for Mac-friendly schools, but mounting them hasn’t been easy. Premier has just started to ship a mounting bracket, dubbed the CTM-MAC2 that allows you to mount the Mac Mini behind your flat-screen mount and even lock-it in place to prevent theft.

Made with black powder-coated steel, the CTM-MAC2 (7.4”L x 7.8”W x 1.6”D) saves space by holding the Mac Mini behind the mount. But you can still access the DVD drive and neatly organize and arrange the computer’s wiring through specially designed openings in the bracket.

Want all the details? Go here: http://www.premiermounts.com/product.asp?PartId=2072

Can hear several “Cool!” declarations coming from the AV Club house, as this product piece is read.  
–GB

Back to Top

Click above for more information

 

 

SMART Sync FINALLY Recognizes Mac

SMART Technologies announced Tuesday that its SMART Sync 2010 classroom management software is now available for the Mac platform. SMART Sync 2010 classroom management software for Mac enables teachers and administrators to monitor and guide student learning and share information instantly. Teachers can transfer and open files directly on student computers, or broadcast shared screens to one or all members of the class. The control functions enable teachers to block specific websites, applications, or the Internet as a whole, or lock student workstations to return attention to the front of the class.  

Want more details? Go here: http://www.smarttech.com/sync

Having some experience with earlier (PC) versions of this software, having an option for a “Mac Lab” as well, is a welcomed addition.
–GB

Back to Top

 

ViewSonic Shows New 52" and 42" LCDs

Bragging about 700 nits brightness and claiming a 4000:1 contrast ratio, ViewSonic says its new native 1080p LCDs include a 178-degree viewing angle, slim bezels (19.5mm for the 52” CD5233 model and 16.3mm for the 42” CD4233 version) and can be tiled for video wall applications up to 5×5 – but they’re also about 5” deep. Aimed at the ProAV and digital signage markets, both monitors are shipping now.  If you want complete specs on the 42”, go here: http://www.viewsonic.com/products/digital-signage/products/commercial-displays/cd4233.htm  

If you want complete specs on the 52”, go here: http://www.viewsonic.com/products/digital-signage/products/commercial-displays/cd5233.htm

If a message is worth communicating, it’s worth making sure the content is done professionally and targeted to the audience… and so it follows the hardware displaying also be Pro grade and manufactured with signage in mind. 
–GB

Back to Top

 

Samsung Techwin Shows $780 Document Camera

Dubbed the SAMCAM 860, Samsung’s newest document camera includes 6x optical and 8x digital zoom and SXGA display output and recording of movies with audio at 30fps. It also has compatibility with webcam applications such as SKYPE, GradeCam, Windows Movie Maker; a built-in Macro and Microscope mode; and high-resolution CMOS technology.

Go here to see all the specs: http://www.samcam860.com/

Some interesting, not commonly associated with document cameras, features listed here, like the ability to record with audio at 30 fps.
–GB

Back to Top

 

Dukane Shows Five-Pound 2700-Lumen Projector

Listed at a price of only $745, the new Dukane 8789H is a light (5 lbs.), XGA resolution (1024×768), 3LCD projector that includes a lamp that’s spec’d at 4000 hours and garners 2700 lumens (but only 500:1 contrast ratio) – all aimed at the low-cost education market.

If you want complete specs, go here: http://www.dukane.com/av/products/Item_dvProjectors.asp?Model=8789H

Back to Top

 

Newest M Series NEC Projectors Aimed at ED market

Last month, NEC announced the new M Series projectors, including the NP-M260X, NP-M260W and NP-M300X. These models were developed to address the needs of schools on a tight budget that require a bright, wired network projector with remote monitoring and control capabilities. The model transitions include the NP-M260X replacing the NP410, NP-M260W replacing the NP410W and NP-M300X replacing the NP510.

All three XGA (1024×768) resolution projectors are what NEC calls “value-driven,” eco-friendly, and portable, featuring wired and wireless (optional) networking, HDMI and USB inputs, high contrast (2000:1) and up to 6000 hours of lamp life (in ECO Mode). The M Series was created with the environment in mind and includes a carbon savings meter, energy-saving features such as Power Save (less than 1 watt in standby mode), quick startup and direct power off.

For complete specs, go here: http://www.necdisplay.com/Products/Series/?series=09c60e0b-879f-4d69-9b08-3f2a6b92ba84

Back to Top

 

rAVe Founder to Debut All-New Digital Signage Seminar at ALMO E4 Show

Did you know less than only 16 percent of digital signage installations are done by ProAV integrators? Even the HomeAV market’s doing more digital signage installations than ProAV! Gary has partnered with ALMO Pro A/V to fix that. He’s developed a six-step process for adding a profitable digital signage department to your business. And, it all includes products and technology on display right after his ALMO E4’s spotlight course.

Want to attend? Well, there are two opportunities for you to hear Gary in 2010; Washington, DC on November 10th and New York City on December 15th. Go here to register: http://www.almoproav.com/Events/e4/

If you’re part of ProAV and looking to move into the digital signage market, what better way to get up to speed on what it takes? 
–GB

Back to Top

 


 

Well, that's it for this edition of rAVe! Thank you for spending time with us as we muse the industry's happenings. To continue getting my newsletter, or to sign up a friend, click the link below. To send feedback, don't reply to this newsletter – instead, write to Contributing Editor Greg Bronson at gregthetechie@netscape.net, Publisher Gary Kayye at gary@ravepubs.com or Editor-in-Chief Sara Abrons at sara@ravepubs.com

A little about Gary Kayye, CTS, founder of rAVe and Kayye Consulting. Gary Kayye, an audiovisual veteran and columnist, began the widely-read KNews, a premier industry newsletter, in the late 1990s, and created the model for and was co-founder of AV Avenue – which later became InfoComm IQ. Kayye Consulting is a company that is committed to furthering the interests and success of dealers, manufacturers, and other companies within the professional audiovisual industry.

rAVe Pro Edition launched in February 2003. rAVe Home Edition, co-sponsored by CEDIA, launched in February 2004. rAVe Rental [and Staging] launched in November 2007. rAVe Ed [Education] began publication in May 2008.

Subscribe to our newsletters! https://www.ravepubs.com

To read more about my background, our staff, and what we do, go to https://www.ravepubs.com

Back to Top

 

Copyright 2010 – rAVe [Publications] – All rights reserved – All rights reserved. For reprint policies, contact rAVe [Publications], 210 Old Barn Ln. – Chapel Hill, NC 27517 – (919) 969-7501. Email: sara@ravepubs.com

rAVe Ed [Education] contains the opinions of the authors only and does not necessarily reflect the opinions of other persons or companies or its sponsors.