Open Access

ABSTRACT

Acoustical analysis for a microspeaker used in cellular phones

Hong-Ching Her¹, Jin H. Huang¹

1 Electroacosutic Graduate Program, Graduate Program of Mechanical and Aeronautical Engineering, Feng Chia University, Taichung 40724, Taiwan

The International Conference on Computational & Experimental Engineering and Sciences 2009, 10(2), 55-56. https://doi.org/10.3970/icces.2009.010.055

Abstract

To play melodious sound, a microspeaker in a cellular phone needs to generate wide, smooth sound-pressure-level distribution over the mid-frequency spectrum, ranging from 600 Hz to 10 kHz. In this paper, parametric study is carried out to investigate the effect of various design parameters on the sound-pressure-level distribution. The electro-mechano-acoustical analogous approach is applied to simulate the sound-pressure-level. Also, experiments are conducted for verifications. Discussions about each role of the design parameters are addressed to improve the overall sound-pressure-level performance over the mid-frequency spectrum.

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Keywords

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