AES E-Library

AES E-Library

Nonlinear Control of Loudspeaker Based on Output Flatness and Trajectory Planning

Document Thumbnail

A loudspeaker is inherently nonlinear and produces timbre alterations, roughness, harshness, lack of clarity, and modulation noise. This may impair reproduction quality and speech intelligibility. These issues increase rapidly with high levels and especially high bass levels. Industrial design and marketing constraints demand smaller speaker systems without sacrificing sound output level. This results in higher distortion. To obtain "big bass from little boxes," an anti-distortion system is needed. We present a new approach that is based on the direct control and linearization of the loudspeaker diaphragm displacement that allows the maximization of the bass output and the minimization of the nonlinearities while keeping the diaphragm displacement within the range of safe operation.

Authors:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=20614

Click to purchase paper as a non-member 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 $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


AES - Audio Engineering Society