Tokyo isn't loud at all. Go 2-3 blocks from any major street and they are practically silent.

> drunk people singing on the streets

never seen this

> bousouzoku gangs constantly revving their bikes in silent neighborhoods every night

seen this maybe twice in 25 years

> flight traffic noise

do you live next to the airport? this is not a thing relatively to any other major city I've lived in

> railroad noise of the trains passing, level crossing barriers constantly ding-donging

This is only a thing if you live next to a track which is like 1% of housing