Acoustical Design of the Alberta Jubilee Auditoria Available to Purchase

Two large auditoria have recently been built by the province of Alberta, Canada, in the cities of Edmonton and Calgary. The main auditoria, which seat 2700 persons, are designed for both concert and large‐scale stage presentations. This paper reports on the design and on the extensive acoustical testing in the laboratory and in the halls themselves. Impedance tube and reverberation chamber data were obtained for materials and components of the auditoria. Reverberation time, pulse tests, and other objective measurements were made in the halls as they approached completion. The project culminated a test concert attended by about 1800 people, including 11 expert observers who afterward participated in a discussion of the acoustical properties of the hall.