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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 12    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 12, December 2011
Extraction of Characteristics Quantities and Electro-Technical Modeling of Electrodynamic Direct Radiator Loudspeaker
Full Text(PDF, 3000)  PP.  
Shaiyek Md. Buland Taslim, Shaikh Md. Rubayiat Tousif, Md. Asiqur Rahman, Shauk Muntaha Murshid Khan, Noor Ehteshamul Azad, Md. Shahnewaz Bhuiyan
Characteristics quantities, Comparison, Electro-technical modeling, Electrodynamic Loudspeaker, Lumped parameter model, SPICE, Simulation, 8” and 16” and 32” loudspeaker driver
This paper documents a comprehensive study of loudspeaker modeling to propose such a model that could be used for dimensioning the driver element of an electrodynamic direct radiator loudspeaker system. A lumped-parameter model for such a driver element mounted in an infinite baffle is presented after being derived from careful consideration of the physical principles related to the electro-mechano-acoustic transduction mechanism of the driver element under inspection. Different characteristics quantities such as resonance frequency, Q-number, acoustic efficiency at maximum radiated sound power, frequency response and electrical impedance were extracted from the models representing the loudspeaker driver elements of diameter 8", 16" and 32". Subsequently the outcomes were compared and their behaviors verified with the help of extensive simulation results.
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[4] Leo L. Beranek, “Basic Acoustical Quantities: Levels and Decibels,” Noise and Vibration Control Engineering: Principles and Applications, István L. Vér, ed., New York.: John Wiley & Sons, Inc., pp. 19-20, 2005.

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