Digital audio room correction is nothing new of course yet researchers from Uppsala University in Sweden have developed their own. Dirac Research was founded in 2001 and has not only applied their technology in the automotive...
In Part 1 of this series, we discussed the Anthem ARC (Anthem Room Correction) firmware that is present in their SSPs as well as the AVRs which have a reduced filter bank size. By far, the most significant sonic issue for acoustic music when a subwoofer is deployed occurs around the crossover from the subwoofer to the main speaker. In Part 2 of this series, we take a look at Anthem's ARC (Anthem Room Correction) when adding a subwoofer to the system.
Readers of Secrets of Home Theater and High Fidelity are likely familiar with the names Stacey Spears and Don Munsil. They authored the Secrets DVD Benchmark and brought to light issues like Chroma Upsampling Errors, as well as our recent HDMI Benchmark for Blu-ray players. They also authored the Spears and Munsil HD Benchmark Blu-ray test disc. Version 2 of their HD Benchmark disc is now available, and reviewed here.
Before turning to the review of the NHT subwoofer (review to be published next week) let me give you an overview of the merits of a subwoofer in a context restricted solely to music or restricted to music as part of a soundtrack.
When you go shopping for a flat-panel television these days, the vast majority of available models are LCD TVs. Today's LCDs are super-slim, super-bright, and super-colorful thanks to many improvements made since Sharp introduced the first commercial LCD TV—with a screen measuring a whopping 14 inches—in 1988.
But exactly how does an LCD TV work?
Design and Circuitry of Stereo Integrated Amplifier, including Digital Room Correction and Dual Subwwofer Bass Management
In depth analysis and discussion of the design and circuitry of a stereo integrated amplifier, including digital room correction and dual subwoofer bass management: evaluating the HK 990 Stereo Integrated Amplifier.
Our first HDMI Benchmark article generated a lot of feedback and support from our readers, but also a lot of skepticism.
It's hard to believe that we are already into the second decade of the 21st Century, and now all future Blu-ray players will have to deliver their HD content digitally over HDMI only, with analog component video outputs limited to 480 lines of resolution (480p).
In May, 2010, Senior Editor Chris Heinonen and I published an article here on Secrets looking at some of the popular consumer targeted video calibration software options. We tried the free HCFR program as well as the incredibly popular CalMAN platform marketed by SpectraCal, and a new entry, ChromaPure.
When attending CES and Rocky Mountain Audio Fest over the past couple of years, I noticed that turntables are starting to be the majority of sources for exhibit rooms. We all have heard about the vinyl renaissance, but I just did not realize how strong it is. I mean, LPs are being played everywhere...
For the past three years or so, we have seen a tremendous surge in display technology. During this time, the last rites for the venerable CRT have been read, 50" displays have become the new 32", and 1080p has become the de facto standard for resolution. One thing hasn't changed however and that is the need for precise calibration of your HDTV. Despite tremendous advances in consumer displays, the specifications for color, grayscale, and gamma have not changed since the 1950s. With all these new features available, it has become more confusing than ever for the typical home theater enthusiast to achieve a correct calibration and realize the best performance from your flat panel or projector HDTV.
Impedance is the extension of the idea of electrical resistance to AC signals (like music). In high school, we all likely learned Ohm's law at some time or another. Whether we remember it or not is another story! Luckily, the refresher course is easy. Resistance is a way of relating voltage and current in a simple DC circuit.