Depending on the circumstances , the resulting soundwave may be so faint as to be inaudible to human ears .
在某些环境中，用这种文件处理后的声波可能会变得很微弱，人耳几乎听不到。
Specifically , it causes the user 's smart phone to emit a high-frequency noise that 's inaudible to humans but that the pesky insects reportedly can 't stand .
具体说来，它让用户的智能手机发出一种高频噪声，这声音人听不到，但那些烦人的蚊虫却受不了。
Some creatures , for instance , may be able to " hear " infrasound , - sounds produced by natural phenomena , including earthquakes , volcanoes , and storms , that are inaudible to the human ear .
A customer walking through the cereal aisle might pass by a certain company 's box and suddenly hear and advertisement for it in his ear ; however , to the person in the next aisle over , that particular ad would be inaudible .
Apart from the impact on the environment itself , few if any people could live on the land because of the noise ( and the infrasound , which is inaudible to most humans but potentially harmful ) produced by the turbines .
