M00001634
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ISO 17497-2 1st Edition, May 15, 2012 Acoustics - Sound-scattering properties of surfaces - Part 2: Measurement of the directional diffusion coefficient in a free field
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 17497 specifies a method of measuring the
directional diffusion coefficient of surfaces.
The diffusion coefficient characterizes the sound reflected from
a surface in terms of the uniformity of the reflected polar
distribution. The diffusion coefficient is a measure of quality
designed to inform producers and users of surfaces that, either
deliberately or accidentally, diffuse sound. It can also inform
developers and users of geometric room acoustic models. The
diffusion coefficient is not suitable for direct use as an input to
current diffusion algorithms in geometric room acoustic models.
This part of ISO 17497 details a free-field characterization
method.