By the use of laser modal analysis and FEM computer simulation, the cause of high-frequency resonance peaks of a cone diaphragm loudspeaker has been studied and removed. The design of this peakless diaphragm incorporates an IIR surround material to damp the first resonance mode, and an arrangement of low-density material on the cone diaphragm surface to make the second mode nonuniform.

Authors: Tamura, Kazuaki; Tanaka, Shouji
Affiliation: Matsushita Electric Industrial Co., Ltd., Kadoma-city, Osaka, Japan
AES Convention: 95 (October 1993) Paper Number: 3746
Publication Date: October 1, 1993 Import into BibTeX
Subject: Microphones and Loudspeakers
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=6487

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