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Figure 4 Annoyance rating from 0 to 10 of a 15-second, 80 dB LAeq aeroplane overflight plotted against overall loudness discomfort level (overall LDL).

Figure 4 Annoyance rating from 0 to 10 of a 15-second, 80 dB LAeq aeroplane overflight plotted against overall loudness discomfort level (overall LDL).