耳机发展史（Headset history）.docVIP

耳机发展史（Headset history） The history of the development of.Txt headset Ming Sao is easy to hide, dark base to prevent. Buddha said: you two are silly, B!! The sun was born in the day when the night was turned on the bed again 10-07-08 published at 11:34: jaben Nanjing category: not classified Development history: Beyerdynamic is the oldest headset company, founded in 1924, 1937, Beyer pioneered the development of the worlds first deputy grassot headset DT48, has now entered the field of high fidelity headset. DT48, which is still in production and sold, is the longest - standing headphone in the world. The headset in Beyerdynamic numbers preceded by DT, what does this mean? Originally, DT is Dynamic Telephone, that is power phone abbreviation. Just create a DT48 when the headset (headphone) the word does not exist, Mr. Baia put their own invention called DT power phone , this combination of letters has been followed down. In 1924, a German scientist Jurgen. (Eugen Beyer), Bayer in Berlin opened an electronics company, specializes in electric transducer (dynamic transducers) research and development, and the technology used in the theater special speaker and other similar equipment. At the time, young Bayer had a dream of delivering music to peoples ears So, he developed a small speaker, and they are fixed on the arc-shaped hoop frame, so the birth of the worlds first headset! Well, people used to think headphones were monsters In August 18, 1937, Bayer Berlin to invite a friend to have a fever in the room to the opera Aida (Aida). But the real friends came to have a fever, but I saw the phonograph, see amplifiers and speakers. The player side, lying quietly in a metal arc monster monster, the two ends are respectively provided with a headset. Of course, you and I both know its an earphone. But for the people at the time, it was UFO! And it can sing, too. In this historic day, people have witnessed the birth of Beyerdynamic DT48 headphones, and created a world record,