Noise Cancelling Headphones and iPods by Steve Joseph
Wouldn’t it be nice if you could just shut off those sounds that can be so irritating? Those rattles, hums and hissing noises can be extremely annoying, especially when you are trying to focus on something else. Well it appears that a solution has finally presented itself in the form of noise... In fact noise cancelling headphones have been in existence for some time, although high research and development costs have previously kept them out of the hand of consumers, until now that is. ... With noise cancelling headphones however, listeners are able to listen to their favorite tracks...

Noise Cancelling Headphones: No More Earplugs by Steve Joseph
Perhaps not the biggest complaint about air travel, but nonetheless background noise is a common grumble when it comes to sitting in a plane for several hours at a time. The deafening hiss of the aircraft and the drone of the massive engines are both enough to make you go crazy, but luckily a... Not only can this ambient noise pollution lead to hearing loss, the usual method of using earplugs to combat the noise, can promote ear infections and on a practical level, it does make for a fairly boring flight just listening to the thoughts in your head!

Aviation Headsets by Josh Riverside
Pilots use aviation headsets. Longer flights are very uncomfortable, especially with an ill-fitting headset. The wrong headset can cause head clamps, hotspots and pinching, which is why most manufacturers are designing aviation headsets with adjustable options. ... Another important thing in aviation headsets is the noise cancellation ability, since there is high noise level from wind, propeller, and exhaust. ... This works on the principle of electronic noise cancellation, which is possible by generating a signal that is identical to the sound pressure level, but inverted, so that they...

Things to Look for When Buying a Computer Microphone by Mantius Cazaubon
Computer microphones are a valuable addition to any PC and they greatly increase interactivity and communication levels. You can use a microphone for performing various tasks, both business and fun related. For example, you can hold a conference with your business partners, over the Internet, or... Such microphones will have noise canceling filters, which help diminish background noise. ... The materials they are manufactured from have to be cheap, which eliminates the idea of high quality, so the end product is of lower reliability.

Solid State Hard Drives - They Will Replace our Existing Hard Drives - When? by Charles West
Finally - and yes possibly because of mp3 players and the continuing development of such - the cost of Solid State computer memory is dropping. Camera memory cards or sticks as some people call them are very well priced and readily available, you can now get up to 2gb, and in some cases 4gb... Main Features of these units: - Fully Compatible With IDE Interface - Complies with Standard ATA Interface - No noise - No Seek Error - Very high Shock Resistance - No Latency Delay - Low Power Consumption - Highest Product Quality and Fastest data access - Error...

A Technical Introduction to Audio Cables by Adam Blake
What is so important about cables anyway? One of the most common questions asked by consumers faced with purchasing cables for their audio or home theater system is, “What is so important about cables anyway?” They can cost as much or more than some of the hardware in the system and to many... Because of the high-energy requirement in these cables the current is relatively high (currents can reach 10 amps or more). ... The impact that the “micro” level parameters have on an audio signal is usually less than the impact of the “macro” level parameters.

Trimonal Design Techniques by James Taylorthe
Trimonal design is only just coming onto the market and information is impossible to come by. So this is the first of many articles, so you need go no further. Who hasn’t wanted to get those few extra MHz performance out of their FPGA? Here’s how I do it. ... Do use high speed serial I/O rather than high speed parallel I/O. ... Simulate the whole FPGA design, block level isn’t enough (and if possible the whole board or system). ... As a rule of thumb, allow 5% on top of you required clock speed to account for temperature, clock jitter and noise fluctuations within the FPGA.

Surge Protector: A Simple Mechanism Description by T.L. McMullen
A surge protector [AKA surge suppressor] is an electrical plug-in device designed to distribute safe electrical voltages to other electrical or electronic devices. Surge protectors resemble power strips in appearance; however, they are more sophisticated and deliver a constant, continuous power... Most affected are devices using computer chips and high-speed microprocessors. ... It filters out line noise as the hot wire passes through it. ... Another design is a series circuit where the electrical current is slowed; moreover it detects high voltage, stores the electricity, and releases it...

Hardware Inside Sony Playstation 3 Reviewed and Explained by Aaron Brooks
The Sony PS3 is creating headlines in the techie world. And, watchers all over the world are reviewing the much awaited product. It is all set to storm the gaming world The CNET Editor has awarded the PS3 8.8 out of 10 with 9/10 for design; 9/10 for features; and 8/10 for performance. ... • A noise level matches that of PS2 and is incredible. ... What more the PS3 will play Blu-ray disc with high definition and clarity. ... • Controllers that are high precision, with sensitive six-axis motion, and technologically perfect sensing.

OCR Software--Optical Character Recognition or Optical Crud Recognition? by James Eglin
Optical Character Recognition (OCR) refers to a software technology and processes that involve the translation of printed text into computer searchable text. Done correctly, OCR enables users to search for and retrieve individual words contained within a file or page. ... Due to several recent technology advances, it is now possible to obtain six-sigma level character accuracy from these types of document collections. ... Noise removal of borders, speckles and skews are now common on the more advanced document scanners.