Tuesday, June 12, 2012

HOW HEADPHONES MADE



Headphones are a pair of small loudspeakers which are designed to be held in place close to a user's ears. Headphones have wires which allow them to be connected to a signal source such as an audio amplifierradioCD player, or portable media player. They are also known as stereophones or, colloquially, cans. The in-ear versions are known as earphonesor earbuds. In the context of telecommunication, the term headset is used to describe a combination of headphone and microphone.

The very first headphones were comprised of handmade materials that were readily available such as rubber, leather, copper, and ceramics. Headphones in more modern times still are made based on the same principles but highly advanced. Headphones are now mass-produced and made with a wide spectrum of different materials including vinyl, foam, silicone, advanced plastics, artificial leather, textiles and more.
Ever since headphones were invented by Nathaniel Baldwin in 1910, they have undergone a radical evolution in style, design and performance. Early headphones were largely handmade and constructed from materials common to electrical products of the era---mainly copper, rubber, leather and technical ceramics. Modern headphones are generally highly engineered, mass-produced and made with sophisticated plastics, silicone, artificial leather, rubber, textiles, vinyl and foam materials.

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