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JJ's Now-and-Then Blog - How to Prevent Headaches When Watching 3-D Movies

blog

Many consumers complain that watching 3-D movies gives them eye strain and/or a headache. The explanation, and the solution, are at hand.

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HDR and Dolby Vision: What They Are and Why You Will Want Them

HDR and Dolby Vision: What They Are And Why You Will Want ThemAs a leap forward, High Dynamic Range (HDR) is probably as significant, if not more so, than high-definition. Dynamic range is the single most important factor in image quality, and by going beyond the limits of current displays and standards, we can expect film and television to be even more realistic than ever.

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Dolby Atmos and Auro 3D: The Technology and The Reality

Dolby Atmos and Auro 3D: The Technology and The RealityDolby Atmos and Auro 3D promise to take surround sound to the next level. Basically, both technologies will require you to add more speakers to your theater. In this overview, I provide a description of the two technologies, what they do and don’t do, and let you decide if 7.1 is enough, or “Go for 11.2”, and what it will take to put it in your home.

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Little Things: Converting Speaker Cables from Banana Plugs to Spade Lugs and Vice Versa

Spade LugsDo you have speaker cables with banana plugs and wish you had spade lugs so you could have a tighter bond between the cable terminations and the binding posts?

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Multiple Subwoofers: Benefits & Setup

Multiple Subwoofers: Benefits & Setup

Q&A with Todd Welti (Principal Engineer in Acoustics, Harman Corporate Technology Group) & Kevin Voecks (Manager of Product Development, Harman Luxury Audio Group)

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JJ's Now-and-Then Blog - Many New Audio and Video Codecs are Here. Which will You Choose?

DTS

New audio and video codecs are arriving by the train-load. Dolby Vision, Dolby Atmos, DTS-X, Auro-3D, Master Quality Authenticated (MQA), and whatever their competitors create (they are in a hurry to do that right now). New receivers and SSP's for mid and late 2015 will have some, but not all, of these codecs installed. What will dominate your choice of the product: a past successful history of having that brand, or changing brands to get the codecs you want?

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Laser Light Sources in Digital Projectors

Laser Light Sources in Digital ProjectorsThe first projectors utilized incandescent lamps as their light source. Despite advances in every other area of display technology, this fact is basically unchanged. Today’s digital units still rely on a hot-running ultra-high pressure lamp to create an image. In addition to their short lifespan and high cost, they dim and shift color as they age. There has to be a better way! A few years ago, LEDs were put forth as an alternative light source. They’re still available in a few expensive models. At this year’s CEDIA Expo, Epson introduced two laser projectors, the LS10000 and LS9600e. They’re not the first of their kind but they are the first to sell for less than $10,000. We hope this breakthrough will encourage other manufacturers to follow suit in embracing this exciting new tech.

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Up-sampling, Aliasing, Filtering, and Ringing: A Clarification of Terminology

Up-sampling, Aliasing, Filtering & Ringing; a Clarification of TerminologyIn this article, I will present some of the basics of digital signal processing, and show how these concepts are the building blocks to understanding, identifying, and discussing some undesirable artifacts in the digital media you consume. I will explain concepts without math so that hopefully everyone reading this will be able to get the most out of it.

 

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The Fully Balanced Power Amplifier - Advantages and Design Challenges

The Fully Balanced Power Amplifier - Advantages and Design Challenges

The ATI 6002 and Emotiva XPA-1 represent a major advance in amplifier designers. To my knowledge these are the first, high power, full balanced amplifiers with feedback from the input to the speaker terminal in high volume production. These amplifiers have significantly better performance when compared...

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Don’t let the Upgrade Bug bite you in the “Bum”: Be happy with what you have and Enjoy the Music

Don’t let the Upgrade Bug bite you in the Bum

I just want to start by saying this is a relatively long post (ok, really long post), but it ends up summarizing my personal view of audio equipment in general.

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Media Servers – Where Are We Now, Where Are We Going?

Media Servers – Where Are We Now, Where Are We Going?

The term media server often conjures images of expensive and difficult-to-use products. In reality, the opposite is true. Today we’ll talk about a few choice products, what the difference between a streamer and a server is, and how you can build your own solution from off-the-shelf parts.

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