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Headphones and what makes them work

By Christine Jackson


What are headphones? Simple answer? They essentially comprise a pair of transducers that receive the audio signal from whatever music device they are connected to and convert those signals into sound waves to make the music and sounds we enjoy a lot.

Some factors to consider:

1. Open backing... Will not usually give good sound quality due to the surrounding disturbances (outside noise).

2. Closed backing... blocks outside noise better than the open backed ones.

...from the phone, to the pc to the iPod and everything in between. These functional devices improves our lives with the many fantastic uses they do for you and I. From giving us flexibility and privacy, as well as being compatible with computers to enjoy our video games with great sound.

Listed here are the main basic types:

1. Circumaural... these are big and cover your ears. Examples: Sennheiser 695, Ultrasone Proline 750, AKG K701. They are normally regarded as to be the "best" of the "best in sound. They're the biggest physically so not well suited to carrying with your Ipod, but additionally provide the highest sound quality.

2. Supra aural... these go on top of your ears. Examples: Sennheiser PXC300, Koss Porta Pro, Sennheiser PXC250. Somewhat smaller size compared to circumaural. Many times this design is used in noise cancelling headphones.

3. Canalphones... these go inside the ear canals and because they block outside noise are known as passive noise decreasing earphones. Examples: Ultimate Ears Super FI5, Shure E5C, Etymotic Research ER-4. Compact and portable with excellent sound quality.

4. Earbuds...are the main type that usually come with iPods. They go in the outer ear and sort of just hang there. Normally considered the poorest quality and most dangerous to a person's hearing.

Why? Because they do not block any outside sounds. Therefore, to hear them properly the volume is usually turned up to dangerous hearing levels. Generally average to poor sound quality.

5. Bluetooth...using Bluetooth technologies. These wireless devices operate over a short-range and function without any cords or cables. They provide outstanding service within a specific range, generally about 9 feet. Bluetooth headphones sport the most recent in technology. Connections are automatic and the devices are simple and also have no perplexing workings. You can also change the configurations for accepted and denied connectivity. Although Bluetooth headphones get its name from the respective technology, essentially the name is from the tenth century King of Denmark- Harald Bluetooth.

6. Waterproof...these are mainly ear canal type of earphones that permit the listener to listen to their favorite music or sounds...submerged underwater. The earpiece itself is waterproof, besides being in the ear and preventing water from entering. Obviously, the Ipod, or other player must be enclosed in a waterproof case or container also.

Keep in mind, try to get the best headphone you can afford. Not only will get better listening enjoyment, the better headphones can actually protect your hearing more than the cheaper quality (means more volume) sound devices.






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