AES E-Library

Minimizing the Amplitudes of Transverse Modal Waves in Diaphragms

Midband THD and midband fluctuations in the frequency response (ripple) are both caused by transverse waves being excited in the cone body. Midband distortion and ripple are both dependent upon the amplitude of the transverse waves. The amplitude of the transverse waves monotonically decrease as the internal friction of the cone body and/or surround increase. Therefore, in order to decrease the midband THD and ripple, the internal friction of the cone body and/or surround must be increased. Finite-element analysis, doppler laser vibrometer modal analysis, and simple experimentation support this hypothesis.

Author: Heed, Tom
Affiliation: Oxford International, Ltd., Chicago, IL
AES Convention:101 (November 1996) Paper Number:4333 Import into BibTeX
Subject:Transducers

Click to purchase paper 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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes13)   /pp9496/pp9611/4224.pdf

Start a discussion about this paper!