Abstract
The use of scattering coefficient in room acoustics simulations has proved to be an essential factor for improving the validity of results, as it quantifies the amount of the diffuse sound field in enclosed spaces. Measurement methods have been described in the norm ISO 17497. Available data, whose lack is still one of the weak points, are fairly growing. Moreover, the relationship between the physical quantity and perceptual aspects still remains unclear. Aim of this study is a first investigation toward the comprehension of the influence of scattering coefficient on the sound as perceived from the audience. The target is to quantify the just noticeable differences for variable scattering coefficients associated with lateral wall diffusers of a simulated concert hall. Several musical stimuli convolved with binaural room impulse responses are used as source signals for listening tests. Results focusing on perceptual aspects will be presented and discussed.
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