Презентация, доклад на тему The history of headphones

1910, sitting at his kitchen. Since then everyone has the opportunity to listen to music alone, without disturbing others. Home, on the street, in the subway - anywhere. Plus, we should note an important role of it in the process of recording (cinema, television, voice and music)

the U.S. Navy Lieutenant A.J. Hepburn received from Nathaniel prototype - it was the details of the phone fastened together so as you can see on the photo. Hepburn immediately tested the device and he realized - headphone - is good.
Navy immediately began to order these headphones, but Baldwin could only take small orders - 10 pieces. He was still making them in his kitchen.

It is noteworthy that before all headphones used only for radio.
John Koss was born and raised in Wisconsin. In 1952 he married and used the money donated to the wedding to start a business (even though
his wife was sure that they would buy a sofa ,
so sad). First, his company manufactures portable phonographs. Once for the presentation of a model phonograph John used aviation headsets. The venture paid off in full, and Koss quickly realized the potential of profits In that industry.
Subtotal – SP3 Stereophones was a beginning of

new era of personal audio.

Also, Koss headphones still produces. Since 1958 ;)

did not have much need for small headphones . Mentioned earlier ier in this presentation Baldwin device generally weighed a pound*.
*(1/2 kilo)
Thanks to Sony's Walkman it’s became possible to listen the music, not only
with home stereo. Headphones also
become more compact.
The Walkman set was consisted of headphones MDR-3L2 and portable audio cassette player.

Amar was flying home from Zurich, in a way trying to listen the music through his headphones. Of course, because of the noise he did not listen anything, except it. Back in Boston, he sent his capacity of BOSE Corporation (founded in 1964) to investigate the possibility of active noise cancellation.
The result was the creation of The Noise Reduction Technology Group
(NRTG). In 1989 it was presented the first noise-canceling headphones designed for the aviation industry.

these recognizable white headphones. For 10 days, has sold more than 300 million iPod. Now try to figure out
How much in the world the iPod and
iPhone, to represent the total number of copies of these headphones.
Incidentally, shortly before the presentation of the iPhone 5 Apple reported that delivered more than 600 million of these headphones. In fact,
this is the one set for every 12 people on Earth.

Seoul Germans from Sennheiser  introduced  the most expensive headphones  in the world.
Made entirely by hand by senior engineers of Sennheiser.
Request Only.
It was released only 300 sets.

the device "just for the military" to one of the
most popular devices of information consumption.
And now selling more and more smartphones and tablets, so it gonna be and more headphones.