What's not going to work well with that are higher frequency sounds.

无法很好处理的是高频声音。

It’s similar to how echolocating bats will use high frequency sound to zero in on their prey.

这类似于回声定位蝙蝠如何使用高频声音将其猎物归零。

And when the feather was placed in a wind tunnel, the high frequency sound was heard once again.

当羽毛被放在风洞中时，高频声音再次响起。