BS ISO 17497-2:2012
Current
The latest, up-to-date edition.
Acoustics. Sound-scattering properties of surfaces Measurement of the directional diffusion coefficient in a free field
Hardcopy , PDF
English
05-31-2012
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement principle
5 Frequency range
6 Test arrangement
7 Test procedure
8 Expression of results
9 Test report
Annex A (normative) - Qualification of a measurement space
Bibliography
Describes a method of measuring the directional diffusion coefficient of surfaces.
| Committee |
EH/1/6
|
| DevelopmentNote |
Supersedes 11/30229157 DC. (05/2012)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of ISO17497 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 ISO17497 details a free-field characterization method.
| Standards | Relationship |
| ISO 17497-2:2012 | Identical |
| ISO 266:1997 | Acoustics — Preferred frequencies |
| ISO 18233:2006 | Acoustics Application of new measurement methods in building and room acoustics |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
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