Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Comparative Analysis of Nonlinear Distortion in Compression Drivers and Horns

Authors: Voishvillo, Alexander

AES Convention 117 · Paper 6192 · October 2004

Abstract

Nonlinear effects in horn drivers are the inseparable part of the principle of their operation. In addition to the distortion caused by electrodynamic and mechanical effects, the distortion is generated in the compression chamber by the nonlinear adiabatic compression, modulation of the air's mechanical stiffness, mass, and viscous losses, and by the nonlinear relationship between the particle velocity and the sound pressure. A new more accurate nonlinear model of compression chamber has been developed. A significant part of distortion is generated in the phasing plug and the horn due to the nonlinear propagation of the high pressure sound waves. Quantitative comparison of nonlinear effects in compression chamber and horn is carried out. Comparison is performed by using such criteria as harmonic distortion and two-tone intermodulation distortion.

Details

Published in
AES Convention 117
AES Convention
117
Paper number
6192
Publication date
October 6, 2004
Session subject
Loudspeakers
Affiliation
JBL Professional, Northridge, CA (See document for exact affiliation information.)
Type
Convention Paper