Fine acoustic is not there
to be seen but to be blended into the architecture.

Kahle Acoustics provides acoustic consulting services for every type of performing arts venue projects, such as concert halls, opera houses, theatres, and auditoriums be it new constructions, renovations, rehabilitations or improvements of existing buildings. Rather than applying preconceived formulations to projects, Kahle Acoustics actively seeks solutions that consider context, architectural design and artistic merit.

Kahle Acoustics genuinely believes that acoustic considerations should be factored in from the very start of the project, and not merely be “bolted on” to an existing design.

With the team's pertinent background both in music and science, Kahle Acoustics is very attuned to requirements and feedback from musicians, audience and performers. It gives the team a solid background knowledge, when it comes to collaborating with architects and venue planners on a programme's development or amendments.

Kahle Acoustics is located in Brussels, Belgium, and was founded in 2001 by Eckhard Kahle. All members work in multiple languages: French, English, Dutch, and German, and on three continents: Europe, North America and Asia.

Kahle Acoustics frequently collaborates with some of the world's most prestigious architects, such as Renzo Piano, Jean Nouvel, Rafael Viñoly, Terry Pawson, Paul Andreu, Rem Koolhaas and Souto de Moura.

News ///

Our acoustician, Thomas Wulfrank took an active part in the project Inside the Hearing Machine notably in collaboration with the Orpheus Instituut and Tom Beghin. If you are interested, please browse on the Inside the Hearing Machine website, or Orpheus Instituut website and join one of the three October events to enter the multisensory playground of the late deaf composer: Beethoven. Or read The Acoustics of Beethoven's Hearing Machine, CD-booklet for Tom Beghin.

The contributing writer to Forbes Magazine, Jens F. Laurson is a Classical Critic who wrote about the Musikzentrum Bochum (July 21, 2017) in comparison to Hamburg Elbphilharmonie, please read more through this pdf. More info: here

August 3rd, Eckhard Kahle lectures on concert hall acoustics and its influence on musicians at Stavelot Abbey, Belgium, where the 60th musical festival takes place. Info:

Thomas Wulfrank joins the 24th International Congress on Sound and Vibration held in London from 23-27 July 2017 to present a paper on creative possibilities and limitation of curved surfaces in the acoustic design of contemporary auditoria. You may read the paper

Evan Green attended the 25-29 June Acoustics'17 Boston, the 173rd Meeting of the Acoustical Society of America. Evan Green will present a paper on “How (and why) does every Concert Hall 'wake up' differently?”

Kahle Acoustics's article on Musikzentrum Bochum has just been published in the Auditoria 2018 issue, browse the pdf for more info.

In January 2017 Arsonic Mons is awarded the 2016 Protection and Future of the City prize in the Contemporary interventions category. More info: here

Kahle Acoustics is glad to announce that Émilie Carayol is hired as acoustic consultant as of January 2017. You may read her full CV through this link: here.

ArAc Multibook   Kahle Acoustics has been invited to join a European e-learning and m-learning tool development project named the ArAc Multibook. • The aim is to offer support to the architects with key acoustic competences. This application, developed in four languages (English, French, German and Polish) will be available as of Spring 2015. This project is funded with support from the European Commission under the Lifelong Learning Publication Programme. • Kahle Acoustics collaborates with KFB Poland, Wrocław University of Technology (WUT), Poland, GFAI Tech GmbH, Germany, and The Laboratory for Acoustics and Thermal Physics (ATF) of Katholieke Universiteit Leuven, Belgium. • More information: Adam Europe + Ar-Ac multibook + pdf.
logo ArAc Multibook

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