AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

Finite Element Modelling of a Loudspeaker Part 2: Applications

The finite-element loudspeaker model presented in Part 1 is extended to three applications. Firstly, we study the effect of a significant increase of the magnetic motor strength Bl on the breakup modes and other resonances of a typical driver. Approximations to the theory allow modal decomposition even when the loudspeaker voice coil is driven from a normal amplifier, showing that the modes most affected are those for which the back-emf due to voice-coil motion is strong. Secondly, we probe how the shape of the cone influences the resonances, breakup, and acoustic performance. Cones that flare outwards have the most desirable characteristics. A final third study concerns the result of a change in the distribution of the damping and stiffness of parts of the driver, to see if useful characteristics ensue. The model is also used to investigate some aspects of measurements.

Authors:
Affiliations:
AES Convention: Paper Number:
Publication Date:
Subject:

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:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society