DJI claim that there are two changes that contribute to the noise improvement on the V2 drone. One of them is supposedly due to the ESC change to a sinusoidal waveform. So I was suggesting such a test in order to quantify that difference just for a data point. If there is a difference then it *could* address your assertion that, as you said, "[t]here isn't going to be any significant difference between the P4P V2 and V1 with the new props, whatever improvement there is on one will be on the other." The ESC change could mean that there would be a difference. And I think this is DJI's claim.
It's true that the difference might be masked. But might the difference instead be cumulative and not masked?
I'd still be curious to know how much of a difference, if any, the sine wave change makes without the props in the mix.
I guess what I'm saying is that even if there is a difference without the props in the mix it is irrelevant because the drone is useless without props, i.e. motors without props it is a test exercise without any real-world significance. The test we need is a back-to-back test of both the V1 and V2 in flight, both with the new props and measured at a reasonable distance, and a comparison of noise levels. Someone will no doubt do that soon. The reason I am so skeptical is that the motors make up such a small portion of the total noise emitted (the vast majority by far is prop noise) that it doesn't make a lot of logical sense that the motors/ESC alone could produce a recognizable difference under real-world in-flight conditions. At flight idle on the ground when the props are slow? Maybe, possibly... but who cares. The only meaningful test is with the bird in the air. It's such an obvious question that I'm surprised Drone Valley didn't cover it in their otherwise comprehensive test, but maybe they'll catch it in an update.
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