The Earpieces Realm

The word Audifonos is a term not many are distant off. Sounds- better, loud and quality are the synonyms for the pair of speakers kept near the ear letting the user have a sound experience. Their size may vary from small to ultra small, ultra small to invisible these days.Once upon a time, Audifonos were heavy clam-shells that pinched your head like the claws of an irradiated lobster from a 1950s sci-fi movie -- but that was a long time ago and things have changed. Now you see people comfortably wearing them at malls, parks, offices, schools, and just about everywhere else. You probably own a pair or two of your own; manufacturers of portable CD players, MP3 players and boom boxes almost always toss in a pair of cheap Audifonos with their products -- and these are mostly what you're seeing in the ears of those plugged-in folks around town.

Their domain in often believed to be limited to loud music, little is it known that the hearing aid are in the domain of Audifonos. The hearing aids are used to cure the mild deafness. Some of the hearing aids come with amplifiers to enhance the hearing quality.There are two basic types of Audifonos: dynamic and electrostatic. The dynamic-driver Audifonos use the same technology as dynamic-driver loudspeakers (the most popular type of speakers). That is, they feature cones (also called diaphragms) made of paper or other material. The cone is attached to a coil of wire called a voice coil, which is propelled up and down in very rapid, minute, piston-like movements by a combination of electrical energy (from your amplifier) and the interaction of magnetic fields. The movements of the voice coil, typically so fast that the eye can't perceive them, in turn move the cone. The cone's motion displaces air, causing tiny ripples in air pressure -- sound, in other words.

Just as dynamic-driver speakers and phones share the same technology, so do electrostatic speakers and phones. In an electrostatic speaker, the electrical energy from your amplifier (or receiver) again works in conjunction with magnetic fields to move a diaphragm. In this case, the diaphragm isn't a cone but an extraordinarily thin sheet of Mylar. Like the cone in the dynamic speakers and Audioprotesis the Mylar displaces air when it moves and the resulting changes in air pressure cause sound.
The further classifications to Audifonos several infants take birth:


• Circumaural
• Supra-aural
• Open or closed back
• Ear-fitting headphones
• Telephone headsets