I used to have 100 free range hens, and therefore had various cockerels, including bantams. My land was adjacent to one farmhouse. Then the two barns were converted, right opposite my field. The two barn owners never complained about the cockerels, the old man in the farmhouse complained about everything (and he still does!) including my farm dogs barking ....but strangely enough he never once in 20 years said anything about the cockerels.
To be honest, its like anything, surely you get used to it in time? What about barking dogs? The council will be busy going round listening to them, its constant in the village where I live.
Where I am now, the landowners on each side have cockerels too, and once one starts, its like a competition as to who can crow the loudest and goes on and on, but they are hardly likely to complain about mine, when there own are at it too. I did try putting my bantam cockerel in a box at night, but it made no difference. At dawn he still crowed!!