缺乏上下文,難以準確翻譯.
大概意思是：
“但是我們可以減少噪聲－如果我們對此的宣傳力度足夠”There are even laws controlling noise. We can’t return to the “ good old days ” of peace and quiet. But we can make less noise --- if we shout loudly enough about it.這樣的話可以我之前的翻譯應該差不多了。
We can’t return to the “ good old days ” of peace and quiet. But we can make less noise --- if we shout loudly enough about it.

（雖然）我們不可能回到安寧的“老日子”里，但是我們可以較少噪音－－如果我們的對這件事情的宣傳力度足夠大的話。