Frequency Weightings Based on Subjectively Dominant Spectral Regions
University of Southampton
Tuesday 2 june, 2015, 16:00 - 16:20
0.4 Brussels (189)
The optimisation of frequency weightings for the assessment of environmental and transportation noise has been an enduring research theme, with no real consensus achieved, other than increasing acknowledgement that the widespread adoption of the A-frequency weighting is an essentially arbitrary choice. Based on the results of 4 illustrative case studies, we propose a simple hypothesis that the 'best' frequency weighting in any specific context depends on which part of the frequency spectrum is subjectively dominant. This hypothesis helps to explain why different frequency weighting schemes appear to work 'best' in different situations and allows the selection of frequency weightings for use in assessment procedures to be carried out on a more rational and possibly less partisan basis. Further work is of course necessary to develop and extend our hypothesis to a wider range of different circumstances.
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