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Loud Speakers

Loud Speakers. Younes Al-Sayed-Hasan 223646. Outline. The basic principle The main components of the loudspeaker How a Speaker works? Why do we concentrate on the enclosures? Types of Speaker Enclosures Factors determine the quality of the sound generated Conclusion.

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Loud Speakers

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  1. Loud Speakers Younes Al-Sayed-Hasan 223646

  2. Outline • The basic principle • The main components of the loudspeaker • How a Speaker works? • Why do we concentrate on the enclosures? • Types of Speaker Enclosures • Factors determine the quality of the sound generated • Conclusion loud speakers

  3. A loudspeaker is an electromechanical device which converts an electricalsignal into sound. Loudspeakers are used in numerous applications from hearing aids to air raid sirens Loudspeakers are the most variable elements in any audio system, and may be responsible for marked audible differences between otherwise identical systems. The Basic Principle Microphone Audio Circuit Speaker loud speakers

  4. The Main Components loud speakers

  5. loud speakers

  6. How a Speaker works? loud speakers

  7. Resistance of a speaker • Difference between large and small speaker • Stereo system loud speakers

  8. Efficiency • Definition • mathematically • physically • How to increase it • Reduce the cone resistance • mass • Increase the force • Strong magnet loud speakers

  9. Why do we concentrate on the enclosures? • Back-to-front Cancellation loud speakers

  10. Why do we concentrate on the enclosures? (Cont.) 2. Coupling Loudspeaker to air It can not produce a sound whose wavelength > its diameter Ex. 8-inch 1700 Hz loud speakers

  11. Types of Speaker Enclosures • Closed Box Enclosure loud speakers

  12. Types of Speaker Enclosures (Cont.) • Horn loud speakers

  13. loud speakers

  14. Factors determine the quality of the sound generated • Size of the room • Speaker Placement in the room • Is the room empty or not ? loud speakers

  15. Conclusion • Magnetic filed plays a main rule of conversion electricity into sound. • To choose your speaker, many factors must be considered like size of the room and place of the speaker. • By using enclosures, we will avoid 2 problem • Back-to-front cancellation • Coupling loudspeaker to air loud speakers

  16. References • http://hyperphysics.phy astr.gsu.edu/hbase/audio/spk.html • Designing, Building & Testing your own Speaker System By David B. Weems loud speakers

  17. Q & A loud speakers

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