AES Store

Journal Forum

Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
10 comments

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

Access Journal Forum

AES E-Library

Is Phase Linearization of Loudspeaker Crossover Networks Possible by Time Offset and Equalization?

Conventional loudspeaker crossover networks of slope greater than 6 dB/octave, when properly implemented, result in a loudspeaker system whose acoustic transfer function, although of flat magnitude, has all-pass phase characteristics. The system is thus non-minimum phase, and complicated phase equalization using delay equalizers is required in order to render it linear-phase and so transient-perfect. A number of attempts are currently being made to acoustically align such systems by deliberately either introducing or eliminating time delays between the drivers and using conventional minimum-phase equalization to flatten their overall frequency resonse. It is shown in this paper that no choice of inter-unit time delay can render the system minimum-phase, and hense that minimum-phase equalization cannot make such a system both flat and phase linear.

Authors:
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