This paper presents diaphragm parameters and analysis of radiation characteristics for small size loudspeaker by a multilayer piezoelectric ceramic bimorph diaphragm. The multilayer ceramic wafer is suitable for buttery operated mobile phones because of its lower electrical impedance nature. Three diaphragm parameter measuring methods are compared to develop the optimum measurement of diaphragm parameters. Then, output sound pressure frequency characteristics of a loudspeaker model with actual acoustical loads are analyzed.

Authors: Fujii, Jun; Ohga, Juro; Oohira, Ikuo; Sashida, Norikazu
Affiliations: Asida Sound CO., Ltd.; Shibaura Institute of Technology; Taiyo Yuden Co., Ltd.(See document for exact affiliation information.)
AES Convention: 119 (October 2005) Paper Number: 6574
Publication Date: October 1, 2005 Import into BibTeX
Subject: Audio Coding & Loudspeakers & Hi Resolution Audio
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=13310

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 119Papers)   /119/6574.pdf

Start a discussion about this paper!