Efficient resonant loudspeakers with large form-factor design freedom

Ronald M. Aarts, Joris A.M. Nieuwendijk, Okke Ouweltjes

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Small cabinet loudspeakers with a flat response are quite inefficient. Assuming that the frequency response can be manipulated electronically, systems that have a non-flat SPL-response can provide greater usable efficiency. Such a non-flat design can deal with very compact housing, but, for small drivers, it would require a relatively large cone excursion to obtain a high SPL. However, mounting the driver in a pipe, the air column can be made to resonate which enables the use of small drivers with a small cone excursion to obtain a high SPL. For these special loudspeakers, a practically relevant optimality criterion, involving the driverand pipe parameters, will be defined. This can be especially valuable in designing very compact loudspeaker systems. An experimental example of such a design is described and a working prototype is presented.

Original languageEnglish
Title of host publicationAudio Engineering Society - 120th Convention Spring Preprints 2006
Pages722-732
Number of pages11
Volume2
Publication statusPublished - 1 Dec 2006
Event120th Convention of the Audio Engineering Society (AES 2006 Convention)
- Paris, France
Duration: 20 May 200623 May 2006

Conference

Conference120th Convention of the Audio Engineering Society (AES 2006 Convention)
CountryFrance
CityParis
Period20/05/0623/05/06
Other120th AES Convention; Paris, France

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