Abstract
This paper describes how adjustable acoustics features, effective micro and macro shaping, low background noise levels, and appropriate seat count contribute to a high-quality flexible performance environment. Diagrams, graphs, and images explain the techniques. Hammerson Hall is a concert theater designed to provide suitable acoustic environments for such varied performance media as symphony orchestra, chamber orchestra, recital ensembles, opera, musical theatre, ballet, dance, popular music, speech plays, comedy, lectures, and meetings. The room accommodates 1233 patrons for events when an orchestra is in the pit or on a concert platform, but it can quickly accommodate 1315 patrons for events where seats are located on seating wagons on the orchestra pit lift. Hammerson Hall is basically rectangular in shape; however, architectural elements make it appear to be curvilinear. The room also has flexible acoustic absorption and volume. Horizontal balconies and shelves act as reflectors, lateralizing sound energy for acoustic music events.
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