Car Security Alarms by Max Bellamy
Have you ever wondered how your car security alarm works? Contrary to what you might think, car alarms are actually pretty simple devices – they’re just a set of sensors connected to a siren. A car security alarm typically has six parts – a siren (the device responsible for making the noise) and... Most car security alarms have sirens that are capable of creating distinct sounds so that the owner can pick out a sound pattern and be able to tell if it is his or her car that’s sounding an alarm. ... Most car security alarms systems have very useful accessories such as a radio receiver for...

Computer Sound System Basics by Jim Lotter
If you love to listen to music while you work on your computer, then you should check out the newest computer sound systems. Computer sound systems deliver realistic sound reproduction and excellent bass for most listeners needs. Here's some tips on purchasing a great computer sound system. ... Another vital part of your computer sound system is the sound card. ... Almost all computers sold currently have an adequate sound card but if listening to high quality sound while watching a movie or playing computer games is important to you, consider upgrading your sound card.

Headphone Essentials by Robert Thatcher
If you want to escape from the outside world, eliminate the noise around you and just lose yourself in your music, what better way is there to do it than by using headphones? Headphones are great to use when listening to music or when watching TV or a movie. ... There are earpieces that cover the entire part of your ears, while some are small, rounded pieces that would fit the inner part of your ear. ... You can use this in loud environments so that the sound coming from your music player or any other device is the only sound that you hear.

Talking Computers by Kadence Buchanan
Just a few decades ago, the possibility of creating talking computers was considered strictly in the realm of science fiction. But today, talking desktop computers are so commonplace that they hardly elicit any response from modern and sophisticated consumers. ... The other part, the back-end, takes the symbolic linguistic representation and converts it into actual sound output. ... Meanwhile, the back end, which is often called the synthesizer, takes these transcriptions and turns them into actual sound output.

Computer Noise by Michael Arcand
Computer noise is normal ... somewhat. Then there is the dreaded silence of death ... You see, there are several moving parts inside of your desktop computer. These parts are going to make noise, so that part is normal. Your computer has at least two fans, one on the CPU (central processing... It will sound exactly like any other fan bearings that you might have heard go out ... ... Two more things that generate noise on your computer are your CD-ROM (and DVD-ROM) drives and your floppy drive (if you still have one!).

Headsets - The Sound Wonder by Stefan Rockhaus
Headsets are used to hear music close to your ears from a laptop, computer, or music system. Headsets are a pair of transducers which receive electric signals and convert them to sound. Beyerdynamic officially invented headphones in the late 1930's. They were also the first company to market... Speakers send sound to our ears so that there is phase difference, and when sound reaches our brain, it can detect prefect sound. ... The reason is that while recording stereo sound, it is assumed that the sound will be heard using speakers.

Used Laptop Computer: Your Quick Purchase Inspection Guide – Part 2 by Joe Duchesne
Used laptop computers are everywhere these days. How can you sift through the mass of available used laptop computers to narrow your search down to the right laptop for you? This is the second part of a series of articles designed to give you a few suggestions for your next purchase. ... Assuming you've done the visual inspection mentioned in part one, you're ready to power up the laptop and do some more digging. ... Locate the vent for the CPU fan (if it has one – most do) and listen to the sound it makes.

Used Laptop Computer: Your Quick Purchase Inspection Guide – Part 3 by Joe Duchesne
Used laptop computers are everywhere these days. How can you sift through the mass of available used laptop computers to narrow your search down to the right laptop for you? This is the third part of a series of articles designed to give you a few suggestions for your next purchase. ... If you see yourself listening to music using the laptop speakers, try to play some music on them to see how they sound. ... Sound and video are both things that are important to some people and not to others. ... Laptop speakers rarely sound full.

What is an mp3? by Quinn Spicker
The mp3 is to music what the JPEG is to images. It is a type audio file which is compressed so it takes up less space. Mp3 is short for MPEG-1, Layer 3, where the MPEG part is a video format, and Layer 3 is the sound of that video. Compression When a sound is compressed into mp3 format, the... For example, if you are recording the sound of a fly buzzing, then someone starts up a chainsaw, the sound of the fly buzzing is now “useless”. ... History The mp3 was created by a group of four Europeans as part of the MPEG, which stands for Motion Pictures Experts Group.

Get Ahead When You Build Your Own Computer by Phil Moyers
If you’ve been kicking around the idea of building your own computer, it actually isn’t a bad idea. It’s easier than you might think, and you can probably come out with a system that gives you more kick for your money, than you’d see in retail, or those made-to-order places. ... Many times, computer manufacturers like just use a cheap motherboard that has everything, your sound, video, etc., integrated into it; you get a third-rate version of everything. ... But still, the biggest part of your computer case selection is going to be cosmetics and personal style, so pick one you like!