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

The Effects of Voice-Coil Axial Rest Position on Amplitude Modulation Distortion in Loudspeakers

The magnetic field in the air gap of a conventional loudspeaker motor is most often an asymmetric nonlinear function of axial position. Placement of the voice-coil into this asymmetrical field yields an asymmetric nonlinear force-factor, Bl, which is a primary cause of amplitude modulation distortion in loudspeakers. Adjustment of the rest position of the voice-coil in this field can alter the nature of this modulation distortion. Common practice is to nominally set the voice-coil at the geometric center of the gap or at the position generating maximum Bl. A time-domain nonlinear simulator has been used to investigate effects of voice-coil placement in an asymmetric flux field on amplitude modulation distortion.

Author:
Affiliation:
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