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Speakers

This version was saved 9 years, 10 months ago View current version     Page history
Saved by Omer Asmat
on April 20, 2011 at 9:31:11 pm
 

Speakers

 

 

 

Table of contents:

  1. History

          1.1 Invention of the first Loudspeaker

          1.2 Further Improvements    

     2. What is a loudspeaker?

     3. Design

     4. Physics

     5. Resources

 

 

History

Invention of the first Loudspeaker:

 

In 1867, Alexander Graham Bell constructed the first ever electrical speaker device for the purpose of building a telephone. In 1877, Ernst Siemens improved upon Bell's invention and invented a more advanced electrical loudspeaker. During the period of 1867 to 1891, physicists such as Nikola Tesla  were working upon improving this idea of the loudspeaker. The research of these three physicists 'sparked' the development of the modern-era loudspeaker.

 

 

Alexander Graham Bell,  Nikola Tesla and Ernst Siemens (left to right) were key individuals who contributed to the development of the modern speaker.

 

Further Improvements:

In 1898, Oliver Lodge established the modern idea of moving-coil.

 

What is a loudspeaker?

 

Brief Description:

A loudspeaker is a device which converts electricity into sound which is amplified through a device. Commonly used loudspeakers are radios and stereo systems. There are many different types of loudspeakers and they all are different in terms of producing sound frequency. A loudspeaker can also be referred to transducer which means that it converts a certain type of energy into another. In this case a loudspeaker converts electrical energy into sound energy.

 

 

Design

 

 

 

 

 

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