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
Subject: Microphones and Loudspeakers

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.