Perception of scattered sounds in rectangular concert halls

This paper investigates objective and subjective responses on scattered sounds from rectangular concert halls. A concert hall with 450-seats and highly diffusive lateral walls was measured based on ISO 3382-1. Acoustical parameters such as RT, EDT, G, C80, LF and IACC were used for objective evaluation of scattered sounds. The impulse responses of the concert hall were selected according to the measurement results of „Number of peaks‟ for in-situ diffusivity evaluation. Auditory experiments were performed with 8 auralized music sounds with normalized impulse responses. The effective diffusion parameter was discussed through the subjective test results.