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
 


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  Handbook Chapters
  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

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Link to Ed's latest blog 
Fidelity without truth? 

Blog archive links at the bottom of this page.


And the AV NEWS you should know follows .....

MQA Update
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.

Dynamic Glass
"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.

UltraHD Mess
18Gbps HDR UltraHD video at 60Hz sources with expanded deep color are finally arriving.

But m
any 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

 
77 inch flexible transparent OLED
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. 

MQA News
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.

Alexa
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 OLED
Sony has announced the pricing and release dates of their new OLED TVs.  
Select this Link to TWICE.com for the story.


Samsung QLED
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.


Shape Changer
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.


Musical Origami  
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.

Real Bass Solution  
Go to this link to at 'the absolute sound.com' to check out this review of the Swarm Subwoofer by AUDIOKINESIS.  This appears to be an audiophile solution at a Mid-Fi price.

Very Cool DSP!
I have a cautious attitude towards the use of DSP equalization.  This story from The New Yorker outlines Meyer Sound's use of digital processing in rooms ranging from a concert hall to a restaurant. In the right hands DSP is art. 

Human Hearing Beats Uncertainty Limit
This story at ars/technica.com demonstrates that human hearing exceeds what the most advanced technologies can measure.  This is yet more evidence that we do hear what we hear; though many still insist that we don't. 



 


 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?

$20 AV Hero  
Is a twenty dollar sale worth your time?

Ed's Class D Economic Forecast
These are baseline economic facts for 2015 planning.

Adventures in AV Land Part 2  'Wipe out the noise'
Ed enlists the words of Peter Gabriel to examine an issue that plagues our business. 

Adventures in AV Land Part 1
This is a trip down sales-rep memory lane that reflects on the definition and understanding of stereo audio. It concludes with a request. 

I Am A Salesman
I am offended by those who have stained the reputations of  professional sales folks. 

Not Invented Here
A good friend confronted me with a good question.
Here is my answer.

The Bully
Contemporary stories about bullies continue to miss the mark.
This blog offers a time honored solution. 

Panasonic Responds?
Did Pansonic really respond to Ed's previous blog.
And what was Ed's reaction.

P.I.S.T. TV
This blog offers a path to restore AV profitability.  

Hedy Lamarr, Lefty Gomez, and David Bromberg
What do these legends have in common?

Ray Davies
Artist such as Ray Davies are largely why I entered this business.
This is a story about another great evening of music.

Where Have All My AV Friends Gone?
Another great AV shop closed their doors forever.
What happened?

4K BluRay What?
If you're a Sony fan, you may want to skip this rant. 

Real LED TV
This is an introduction to two great technologies; OLED and IOLED. 

If Dirty Harry were an AV Pro.
An audio/video professional must know his limitations.

Breakfast with Kevin
What do my friend Kevin, Henry Rollins, and Joseph Campbell have in common?

Why It Matters
Did you hear that?  
It's the sound of groans responding to my previous blog.

Mis-mixed Audio Concepts 
" ...... these guys claim we can't hear what we hear ...
....... because (we) are not as accurate as some stupid test equipment".   

The 2011 Optimist 
I set out to dig a well for water, but ended up with a half empty septic tank.

Pet Peeve
Advertising is not Marketing.

Bad Chili 
David jokingly referred to audiophiles as audio.... piles. 

How to Compete with the big-box.
I saw a smart-phone-customer-type engage stun as the salesman approached. 

Eavesdropping at the big box.
Did you know transporting a plasma TV on its back disrupts the gas in its cells?
Yeah, it was news to me too.

Baseball and Selling Audio / 3 Part Blog
Part 1 - 'Clear the Mechanisms'
Part 2 - 'Get you signs'.
Part 3 - 'The windup and the pitch.' 

Home Theater by Design / 3 Part Blog
Part 1 - The Custom Design
Part 2 - THX
Part 3 - High Fidelity

In Four Parts / The Holy Trinity of HiFi Audio
Part 1 - Noise
Part 2 - Noise continued.
Part 3 - Frequency Response
Part 4 - Phase

Send the Kink Packing

Is that Big Box PO Just Another Bailout?

In Defense of Snake Oil

Is Your Business Strategy Your Foe?

What's Wrong with Audio?

My First Day of Class

Audio Revival

Minimize the Compromise

A Genuine Audiophile

























































Ed's AV Handbook.com
Batting Practice for the AV Pro and a Primer for the Novice.
Copyright 2007 Txu1-598-288   Revised 2017