Speakers microphones
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Speakers & Microphones. Mark Koh and Mike Renz. The Technology. Speaker - an electroacoustic transducer that produces sound in response to an electrical audio signal input. Microphone - an acoustic-to-electric transducer or sensor that converts sound into an electrical signal.

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Speakers & Microphones

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Speakers microphones

Speakers & Microphones

Mark Kohand Mike Renz


The technology

The Technology

  • Speaker - an electroacoustic transducer that produces sound in response to an electrical audio signal input.

  • Microphone - an acoustic-to-electric transducer or sensor that converts sound into an electrical signal.

Speakers and Microphones | 4.8.2011


Speakers how they work

Speakers: How They Work

Stupid Link?

Speakers and Microphones | 4.8.2011


Microphones how they work

Microphones: How They Work

Speakers and Microphones | 4.8.2011


The history of the speaker

The History of the Speaker

  • Invented by Alexander Graham Bell in 1876 in the process of making the first telephone.

Speakers and Microphones | 4.8.2011


The history of the microphone

The History of the Microphone

  • First conceptualized by Charles Wheatstone around 1827, but modernized in 1876 by Emile Berliner who invented the first microphone used as a telephone voice transmitter.

Speakers and Microphones | 4.8.2011


How the speaker has changed

How the Speaker Has Changed

  • Amplified telephone receiver

  • Cylinder compressed air amplifier

  • Moving coil dynamic drivers

Speakers and Microphones | 4.8.2011


How the microphone has changed

How the Microphone Has Changed

  • Stethoscopes

  • Voice transmitters

  • Carbon microphone

  • Broadcasting microphone

  • Dynamic microphone

Speakers and Microphones | 4.8.2011


Societal benefits

Societal Benefits

  • Made the invention of the telephone possible

  • Large impact on entertainment as a whole

  • Made hearing aids possible

  • Communications

Speakers and Microphones | 4.8.2011


Thank you questions comments concerns

Thank you!Questions, comments, concerns?

Speakers and Microphones | 4.8.2011


The works

The Works

  • Bellis, Mary. “The History of Microphones.” Inventors. About.com, n.d. Web. 8 Apr. 2011. <http://inventors.about.com/‌od/‌mstartinventions/‌a/‌microphone.htm>.

  • Daintith, John. “Microphone.” Dictionary of Physics. New York, NY: Facts on File, 1981. 118. Print.

  • “Dynamic Microphones.” HowStuffWorks. Discovery Channel, n.d. Web. 6 Apr. 2011. <http://electronics.howstuffworks.com/‌gadgets/‌audio-music/‌question3092.htm>.

  • Harris, Tom. “How Speakers Work.” hostuffworks. Discovery Channel, n.d. Web. 4 Apr. 2011. <http://electronics.howstuffworks.com/‌speaker6.htm>.

  • “History of Speakers.” Articlebase. N.p., 12 Mar. 2009. Web. 6 Apr. 2011. <http://www.articlesbase.com/‌history-articles/‌history-of-speakers-813938.html>.

  • Kirkland, Kyle. “Tape Recorders and Computer Disks.” Electricity and Magnetism. New York, NY: Facts on File Inc., 2007. 36. Print.

Quantumplative Technologies | 12.7.2010


Speakers microphones

Quantumplative Technologies | 12.7.2010


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