b'Construction briefingBRIEF: ACOUSTIC BRIEF (KAHLE ACOUSTICS AND ALTIA, 2006) Project: Philharmonie de Paris (FR)Client: La Philharmonie de ParisArchitect: Ateliers Jean Nouvel and Mtra + Associs2134The ambition is to meet the highest possible standards inThe maximum reverberation acoustic quality while allowingtime (RT) required for this for a creative concept bothauditorium (full audience architecturally and acoustically.without curtains or any movable The matre douvrage (client)acoustic feature) is 2.3 seconds. clearly emphasizes his desire toIn any case, the maximum RT build an enveloping and flexibleof the room, fully occupied and auditorium, particularly withNo specific room shapewith musicians must be greater respect to the use and locationis required and all freedom isthan 2 seconds. To obtain such a of the stage, with an importantleft to the designers. However,maximum RT, one must plan for proximity between the stageproblematic shapes, such as aan acoustic volume of 12 m toand the audience and a strongperfect circle, an ellipse, or an13 m per person of the audience intimacy between the musiciansexcessive fan shape are to beand consequently a total volume and the audience. avoided. of 30000 m3 for the auditorium.68'