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Psychoacoustic Characterisation of a Small Fixed pitch Quadcopter

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Figure

Figure 1. Frequency spectrum of the quadcopter tested: electric motor only, and electric motor with 1, 2 and 4 propellers
Figure 3. Frequency spectrum of the quadcopter tested, with extra payload of 0, 434 and 656 g
Table 2. Sound Quality metrics for the aircraft, quadcopter and road vehicles tested.   Aircraft Quadcopter Road Vehicles
Table 3. Sound Quality metrics with statistically significant differences (p ≤ 0.05) between the aircraft, quadcopter and road vehicles tested, based on the results of
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