Home Theater and High Fidelity Stereo Audio
Ed's AV Blog
plus Audio/Video News
Batting practice for the audio/video pro and a primer for the novice
Index by chapter subject
Chap 1 AV Terminology
Chap 2 AV Physics
Chap 3 Sound
Chap 4 Video
Chap 5 AV System Sequence
Chap 6 The Room, Speaker, & TV
Chap 7 Acoustical Strategy
Chap 8 Home Theater by Design
Chap 9 Sales Training
Chap 10 Business & Marketing
77 inch flexible transparent OLED
The Master Quality Audio digital format is gaining ground.
This Link to audiostream.com outlines MQA's progress
Samsung / Harmon Pro Layoff 650 Employees
The purchase of Harmon by Samsung is going to felt by 650 employees.
The Harmon Pro group includes AKG, AMX, Crown, JBL Pro, Lexicon, and SVSi.
Select this Link to CEPro for the story.
136" Real LED TV
This RGB LED TV may someday replace home theater projectors and screens. Similar to Sonys' CLEDIS and Samsungs Cinema Screen, this TV from Digital Projection is another step toward displays that consist of real red, green, and blue sub-pixels. Select this Link to AVSForum.com
FREE - 25,000 78 RPM Records
This LINK to newsworks.com reports on an interesting source to a musical 'way-back-machine'.
Check out the musical gems that lie in this free site: George Blood/The Great 78 Project
Looking for a new career?
This dizzying TVTechnology.com story may lead to the career change you've been looking for.
"Light, Aziz light" .... Light is the prime element of home theater video. Short of eliminating windows --- window covering is still a primary method of controlling competing sources of light. Dynamic glass is a cool alternative. This LINK to ElectronicHouse.com tells the story.
Computer audio for beginners
Michael Lavorgna at AudioStream.com offers help for the computer audio novice with this series of articles: Computer audio 101, Download sites, Files & formats, Files sizes & storage, Fixing your metadata, NAS. Select this LINK.
Independents thrive as big boxes dive
Independent dealers are fairing well across the land.
This LINK to Twice.com tells the story.
18Gbps HDR UltraHD video at 60Hz sources with expanded deep color are finally arriving.
But many so-called UltraHD '4K' products that consumers have handsomely paid for will not reproduce it. And here's another wrinkle -- DPL Labs discovered that any component in the system, even an UHD HDR disc, may reduce 18Gbps video to 8.91Gbps. Select this LINK to this DLP Labs Jeff Boccaccio story at CEPro. And get ready for some angry phone calls.
LG OLED wins Annual TV shootout
To put in another way -- LCD looses again.
Select this LINK for the story at AVSforum.com
LG keeps the OLED ball rolling. This commercial product is the kind of product that can casually leak into custom home theaters. Check out this story at Twice.com.
LG OLED delivers
Check out Scott Wilkenson's review of LG's lowest priced 65" UHD HDR TV at AVSforum.com.
LCD resolution tripled?
Check out this phrase, "surface morphology-induced, polorization-dependent plasmonic resonance". Essentially this is a new technique that converts LCD RGB sub-pixels into stand alone RGB pixels. Read this story at digital trends.com for the details.
Real 2020 Red
The C.I.E. 2020 color specification is the holy grail of video color. This outlines a General Electric LED technology that produces C.I.E. 2020 red. This opens the door to C.I.E. 2020 red, green, and blue displays. This story at AVSforum also offers a great description of the light emitting diode.
This QLED is IOLED
Do not confuse this QLED with Samsung's faux QLED. And this "Q" is not the "Q" of quantum dots. This is an "Electroluminescent Inorganic LED" display. Although it's only a prototype; this technology is advancing at a fast pace. Check out the full story at this link to AVSforum.
Ferroelectret Nanogenerator, or FENG, is an ultra thin transducer that may morph into a talking newspaper, roll up radio, foldable speaker, noise canceling 'sheet', or who knows. Check out the story at the dailymail.co.uk.
HDR Color Volume
LCD TV color has greatly improved. Some can now compete with plasma and OLED. This is another story from AVSforum that outlines the color facts.
More Support for MQA
Is MQA to audio as HDR is to video? I hope so.
This is another hometheater.com story outlining the growing support for MQA.
The list of MQA partners is growing. This story from hometheater.com updates the list.
Flexible OLED Display
Check out this story at c/net.com, an OLED screen that can be stretched.
Home Theater Review's Jerry Del Colliano takes on home automation's favorite buzzword 'voice control'. Regarding Amazon's Alexa he began with, "The world is your oyster. Hell, you can even order a dozen oysters while you at it." So why did he ultimately give this technology a thumbs down. Select this link to Why I Won't Be Seduced by Alexa.
Best TV Ever
Is LG W7 OLED TV the best consumer TV ever? Well, Scott Wilkinson of the AVSForum.com thinks so. And he's no rookie. Read his story.
HDMI 2.1 News This Robert Archer story at CEPro offers a link to an informative webinar and post seminar quotes regarding your HDMI 48G cable future. The gist of the story is don't panic ..... Yet.
Mono or Stereo This is a link to a RareRecords.net Blog by Charlie Essmeier. Charlie reviews
classic recordings released in mono and stereo. This is a must read for the record collector.
Sony has announced the pricing and release dates of their new OLED TVs.
Select this Link to TWICE.com for the story.
This is a 'Q' not 'O' LED display. The Q is a film of quantum dots wrapped around an LCD panel. This may be a better LCD TV. But the back lighting is still always on. Read this story at Pocket-lint.com for more info.
The Loudspeaker Design Cookbook
Much as the author of this story - Brent Butterworth, It has been three decades since I first read Vance Dickanson's "The Loudspeaker Design Cookbook". If you're looking for a reference that sums up speaker design choices; pick up a copy or at least read Mr. Butterworth's outline of the 'Cookbook' at this link to hometheater review.com.
QLED TV is not OLED TV
The Q in QLED denotes quantum dots. Quantum dots are individual electro-illuminated points of light. As plasma or OLED, the 'Dots' offer a illuminating range from off to full brightness.
To this point they have been used to fix the blue leaning color of LCD/LED back lighting.
This C/Net story confirms that Samsung may be developing real QLED panels.
This is good TV news.
The UltraHD 4K Mine Field
Many consumers who thought they bought real UltraHD are going to be disappointed.
As true 4K 18GBps content arrives we find that we lack the wiring/switching infrastructure to support it. Who's going to tell consumers the truth? Check out this LINK at CE Pro.
Jeff Boccaccio outlines this 4K UltraHD mine field.
Screen masking has been a common choice for different projection screen aspect ratios for some time. But Screen Innovations has come up with a clever alternative that I have not seen before.
Select this LINK to Electronic House for the story.
HDMI Cable Mess
Jeff Boccaccio of DPL Labs used the phrase "Plug & Pray" as he discussed the future of HDMI cables and UltraHD HDR installations. Select this LINK to CEPro for this story.
Another Lester Lead
One of my favorite sources of AV news is Steven Lester of the Steven Lester Co. via LinkedIn.
This is a LINK to a Lester story lead at Residential Systems regarding home theater lighting.
The important point of this story is -- If you wish to maximize home theater performance; then room lighting should be assessed and addressed as you would room acoustics.
This is a must read by Robert Harley of TheAbsoluteSound about MQA " ..... a revolution that comes once in a lifetime". This is a digital audio revolution. He stated that, “By comparison ... conventional PCM is a crude and inefficient method of encoding audio.” Select this LINK Now!
Digital & Noise
This is a link to an AudioStream.com report by Michael Lavorgna. It is not an easy read for the novice. But it is important to anyone interested in better sound. It deals with EMI and RF noise 'produced' by digital cables and digital devices. Mr. Lavorgna stated, "The simple takeaway I'd like to highlight is the fact that digital cables are not immune to noise and this noise can directly impact
the quality of an analog signal in an attached analog device."
Remove or reduce the noise and your system will sound better.
Hearing Beats Uncertainty Limit
Ed's AV Blog Archive
Links to previous blogs
UltraHD HDR Primer - all 7 Parts
Part 1 Set the Table
Part 2 Buzzword Noise Reduction
Part 3 HDR Format War
Part 4 The HD Multimedia Interface
Part 5 More HDMI Tips
Part 6 UltraHD Sources
Part 7 System Compatibility
Cloak the Tech
Don't be the guy who descends into buzzword laden monologues that cause customers to walk.
Ultra-HD Risky Crossroad
HDTV to Ultra-HD TV is at a risky unsettled crossroad. Should you cross now or later?
Class D Economic Forecast
in AV Land Part 2 'Wipe out the noise'
in AV Land Part 1
Am A Salesman
Lamarr, Lefty Gomez, and David Bromberg
Have All My AV Friends Gone?
Dirty Harry were an AV Pro.
to Compete with the big-box.
at the big box.
|Ed's AV Handbook.com
Batting Practice for the AV Pro and a Primer for the Novice.
Copyright 2007 Txu1-598-288 Revised 2017