In 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.
Originally, I was going to post this on the Secrets Facebook site in response to the Anthem D2v 3D review where some people essentially said that releasing a new component without 4K support or support for the newer sound formats seemed pointless (neglecting to note that the product was already 2 years old at the time of the review).
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...
As you probably know well by now, LCD TVs are far and away the most popular type of flat-panel television available today. But exactly how they work is a mystery to most, even technically inclined folks within the industry. So I decided to provide a clear and comprehensive explanation of the inner workings of LCD TVs—no easy task...
Following on my technical article"AVR - Audio Video Receiver - Build Quality: Part I", here, in Part II, I dig a bit deeper into the performance of a single-chip Large Scale Integrated (LSI) analog AVR chip and introduce better solutions employing Small Scale Integrated (SSI) analog chips.
What does your money purchase inside the chassis of an AVR or Pre-Pro in an audio / video system? In this article, one in a three-part series, I attempt to answer this question: I will open the top and look at the parts inside and show how each of the individual parts can affect the audio quality.
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.
(Source: Oleg Lavrentovich, Liquid Crystal Institute, Kent State University)
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.