Man. Hate to start this with pessimism. For noise to be tested a neutral third party should be brought in early.
And regardless of noise profiles, noise is noise. And when people complain about aircraft noise it’s usually about ongoing noise. Ie the length of operations from morning to night. Also what time should flights be allowed? After midnight? Four am? So what I fear here is that the noise testing will set an arbitrary level that the company can say they’re operating within limits thus clearing them from restrictions. I hope I’m wrong but I predict in major cities a small percentage of the population will live with very annoying noise issues and with no power to change anything. Add to that all the package delivery drones and that won’t be a great out one in terms of real noise pollution.