The legendary quality of Carnegie Hall's acoustics were the result of numerous progressive architectural modifications to the room, including the removal of part of the stage ceiling in a pre-1900 effort to stage opera in the space. Following a 1986 renovation, Kirkegaard was retained to assist in making the post-renovation architecture better match the pre-renovation acoustics. Recommendations included the use of diffusive shaping to help mitigate rear wall echoes, and the introduction of high-frequency absorption in key focusing areas above the stage.
Audiovisual Systems Design
Room Acoustics Design
ennead (formerly Polshek Partnership), New York, NY, Architect