Kahle Acoustics is an acoustic consulting practice specializing in acoustics for performing arts 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 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, Eduardo Souto de Moura, Paul Andreu and Rem Koolhaas. Reference projects (see www.kahle.be for more information) include Fartein Valen Concert Hall in Stavanger, Norway, Philharmonie de Paris, KKL Luzern, The Curve Theatre in Leicester, UK, Wuxi and Shandong Grand Theatres in China, Opéra des Nations in Geneva, Anneliese Brost Musikforum Bochum, as well as smaller performance spaces such as Chapelle Corneille Rouen, Arsonic Mons and the Auditorium of the Morgan Library and Museum in New York. Since all acousticians at Kahle Acoustics are active musicians and performers, one of our specialities is the optimisation and acoustic setting of existing rooms and stages, as well as renovation projects.