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This version was saved 9 years, 10 months ago View current version     Page history
Saved by Omer Asmat
on April 20, 2011 at 5:09:31 pm




A speaker is a device that converts electrical signals to sound waves. It is a transducer; a transducer is a device that converts one form of energy to another. Speaker may be referred to just one transducer or an integration of many transducers and filters.



Table of contents:

  1. 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.








Later Ernst Siemens and Nicola Tesla improved upon Bell’s invention from the period of 1877 to 1881.




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