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The Influence of the Directional Radiation Performance of the Individual Speaker Module, and Overall Array, on the Tonal Balance, Quality and Consistency of Sound Reinforcement Systems

Room acoustic characteristics, such as reflections and reverberation, often change the performance of speaker systems in a room. It has always been challenging to maintain the tonal balance of a single speaker module when multiple modules are used to form speaker arrays. Both phenomena are unique to sound reinforcement speakers and are mainly determined by a combination of the radiation characteristics of an individual speaker module and the interactions between modules, known as arrayability. First, this study reviews the performance of conventional speaker systems. Next, the acoustic characteristics of speaker modules desired for forming an ideal speaker array are discussed. A new category of speaker system, the Progressive Directivity Array, is introduced to realize the theory as a practical solution.

Authors: Mochimaru, Akira; Fidlin, Paul; Hayashi, Soichiro; Manzolini, Kevin
Affiliation: Bose Corporation, Framingham, MA, USA
AES Convention:131 (October 2011) Paper Number:8470 Import into BibTeX
Subject:Posters: Transducers

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