AES E-Library

360 Degree Dispersion Frequency Invariant Acoustic Transduction System

An acoustic transduction system has been designed which couples the sound field of two transducers in phase and produces a resultant acoustic radiation pattern which has a full 360 degree horizontal by 90+ degree vertical frequency invariant beamwidth. The system incorporates an acoustic lens, rather than a phased array or electronic technique, to couple the sound fields and produce the wide dispersion. The system is used in a loudspeaker to achieve a 360 degree sound field which is devoid of high frequency beam collapse, and combing.

Authors: Ferralli, Michael W.; Moulton, David
Affiliation: Phase Coherent Audio, Inc.,Girard, PA
AES Convention:81 (November 1986) Paper Number:2392 Import into BibTeX
Subject:Audio Reproduction, Transducers, and Sound Reinforcement: Loudspeakers, Microphones, and Directivity

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: (CD aes11)   /pp8690/pp8611/2488.pdf

Start a discussion about this paper!