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

Apparent Apex Theory

Current methods of measuring polar response curves are not sufficiently defined to yield representative farfield performance. It is shown that the conventionally measured -6 dB angle can be dependent on the point of rotation of the horn and the distance to the measuring microphone. A new methodology determines a point of rotation, the Apparent Apex, such that the measured coverage angle becomes independent of the distance to the microphone, thus allowing observation of farfield polar characteristics at close proximities.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:

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