This can be achieved when existing laws against noise pollution are enforced.
But how can a law be enforced when the enforcers are the ones in the forefront of breaking these laws.
I believe you have got some small misunderstanding on what noise pollution is, to be honest. Noise pollution is not supposed to be fought by completely getting rid of all noise possible, what would not make sense, because there is no society organized enough to get rid of such thing.
Fighting noise pollution is about getting standards and adjust our society to them as much as possible so people who live close to each other won't get bothered by the noise made by neighbors or people in the streets.
Obviously, enforcing laws is an important part of reaching those objectives, even though I have got the impression there is way more people polluting than available law enforcement officers out there.
With this kind of noise it's best to report such person for safety reasons. The work of those officers, they're met to take actions and make things right so if you find such people that always love to create unpleasant noise it's best reporting them to the law officer, but whereby you want to whole world to stop noise pollution it's impossible.
Generally, noise refers to unpleasant sounds. Any sound that is unpleasant to the ears are classified as noise.
I agree with you, noise can not be eliminated as long as there are human activities in that locality.
Besides, Most of human inventions that we enjoy today produce noise pollution, example: cars, airplane, factories, etc.