The Flexible Bass Absorber

Niels Werner Adelman-Larsen, Eric Robert Thompson, Anders Christian Gade

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch


Multi-purpose concert halls face a dilemma. They host different performance types that require significantly different acoustic conditions in order to provide the best sound quality to both the performers, sound engineers and the audience. Pop and rock music often contain high levels of bass sound energy but still require high definition for good sound quality. The mid- and high-frequency absorption is easily regulated, but adjusting the low-frequency absorption has typically been too expensive or requires too much space to be practical for multi-purpose halls. A practical solution to this dilemma has been developed. Measurements were made on a variable and mobile low-frequency absorber. The paper presents the results of prototype sound absorption measurements as well as elements of the design.
Original languageEnglish
Title of host publicationProceedings of the International Symposium on Room Acoustics
Publication date2007
Publication statusPublished - 2007
EventInternational Symposium on Room Acoustics - Sevilla, Spain
Duration: 10 Sep 200712 Sep 2007


ConferenceInternational Symposium on Room Acoustics
Internet address


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