问HN：庭院噪音消除音响/系统？
随着夏天的临近，我们周围的邻居们在自家院子里待的时间越来越多。这通常是件好事，但也可能导致孩子们的喧闹声和各种音乐的混杂。我不想通过提高音量来压过他们的音乐，也不想阻止他们享受自己的院子。
所以我在想，是否有某种扬声器或系统，可以让我们在院子的某个区域坐下来，使用“噪音消除”功能，屏蔽外界的声音，而不影响他们的乐趣呢？
查看原文
As summer is approaching, our neighbors on all sides are spending more time in their yards. That's generally a good thing, but it can make for a cacophony of children's voices and various music selections. I don't want to just crank up some music to try and overpower theirs, nor do I want to keep them from enjoying their own yards.<p>So I'm wondering if there is some kind of speaker or system I could put that would give us an area of the yard we can sit in and use "noise cancelling" for everything coming in without messing with their own enjoyment?