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Technical & Editorial

DVI and HDMI Connections and HDCP Explained

Recently I have had a barrage of e-mails from friends and readers asking why HDTV connectivity is so complicated. I found myself sending out the same advice and comments over and over, so I wanted to share some of this advice. DVI (Digital Video Interface) . . .

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Video Resolution . . . Simplified

Even though we've discussed video resolution in the pages of Secrets more than once, a real understanding of it still eludes a large number of people that I've encountered recently . . .

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Rebuilding an A/V System with House-Wide Networking

I will start out by saying that this is a feature article primarily for fellow geeks interested in the process of building or rebuilding an A/V system. My home isn't exactly a showcase in design or high fashion, and the A/V system that's going back in is aiming for function ...

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THX-Certification

THX is almost a quarter century old, and its Consumer Branch has been around since 1990, yet people still do not have a proper understanding of THX.  Maybe that's THX's fault, maybe it's ours (the press) . . .

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Negative Feedback - Fact and Fantasy

Negative feedback, or NFB, has taken a bad rap in the high-end audio community. Misunderstood by much of the audio press, and occasionally abused by audio designers, many audiophiles shun the idea like anthrax.

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The Secrets SSP (Surround Sound Processor) Benchmark Specifications

The Secrets DVD Benchmark has been remarkably popular, but in an of itself not all that remarkable or unexpected.  What took us off guard is that it has been equally popular with our readers and manufacturers of the equipment.

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What We Hear vs. What We Perceive

Audiophiles love to characterize the sonics of pretty much everything using words that really don't apply to sound. Terms range from the general such as "Tight", "bright", "laid back", "warm," to the absurdly abstract such as my all-time favorite, "pace."

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The Misunderstood 0.1 LFE Channel in 5.1 Digital Surround Sound

In 5.1 digital surround sound, the 0.1 channel is called the LFE or Low Frequency Effects channel. While in the commercial system it is referred to as the subwoofer channel, this is not necessarily true for home theater setups.

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Miscellaneous Ramblings on Subwoofer Crossover Frequencies

Many die-hard conservative audiophiles at first eschewed the use of a subwoofer as a novelty trick of home theater, unsuitable for music reproduction.  As the frequency extension benefits of a dedicated subwoofer became more and more undeniable . . .

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Stereo Imaging, Amplitude Differences, Time Arrival Differences, and the Precedence Effect

When humans hear two simultaneous arrivals of the same sound from different directions at the same amplitude, the "stereo" illusion is that the source is not from two different directions (i.e., from two separate speakers), but from a "phantom" location between those speakers.

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High Definition 1080p TV: Why You Should Be Concerned

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1080p, or 1080 progressive, is a very high resolution video format and screen specification. It is one of the ATSC HDTV specified formats which includes 720p, 1080i, and 1080p . . .

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