Figure 7
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A-weighted sound pressure level for different decays β and different discretization with mixed x-axis scaling, linear for xr ≤ 1 and logarithmic for xr > 1, as above; continuous line source (dotted), discrete point sources with 8.2 cm (dashed), straight 6.2 cm line-sources at the same spacing with inclination increments rounded to integer ° values (solid).
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