Abstract
The room acoustical parameters, the reverberation time (RT), the early decay time (EDT), the bass ratio (BR), the clarity factor (C80), the initial time delay gap (ITDG), and the interaural cross-correlation coefficient (IACC) were measured for acoustical evaluation both in the audience seats and on the stage, using six different stage configurations in a 450-seat unoccupied hall. The stage configurations consisted of combinations of varying the position of the drapes with and without the reflector at the back of the stage. The listening test was conducted in a laboratory using high fidelity headphones to verify the subjective preference for the seats and the presence of the reflector. Analysis showed that the draped area of the stage was related to the RT, EDT, C80, BR, while the ITDG was strongly dependent on the presence of the reflector. There was not a strong impact observed in the IACC for the varying configurations. In general, the reflectors improved most of the acoustical parameters. The loudness of the musical sound was the primary parameter used to decide the subjective preference, which correlated with the C80 and the ITDG with the reflector.
Published Version
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