The cones of larger loudspeakers used in traditional public-address systems vibrate more slowly, making them better suited for sounds in the range of human hearing.

传统播音系统使用的大型扩音器中的椎体振动较为缓慢，使声音更加适合人类听觉范围。

youdao

The sound waves were so huge (about 20,000 light years in length) and so low (about 50 octaves below hearing range) that the astronomer had to adjust them to the range of human hearing.

这种声波如此巨大(大约2万光年长)又如此低沉(大约低于听力范围50个八度)，所以天文学家对它进行必要的调整后，人才能听到。

youdao

The sound waves were so huge (about 20, 000 light years in length) and so low (about 50 octaves below hearing range) that the astronomer had to adjust them to the range of human hearing.

这种声波如此巨大(大约2万光年长)又如此低沉(大约低于听力范围50个八度)，所以天文学家对它进行必要的调整后，人才能听到。

youdao

Warren says now that researchers have a map of the zebra finch genome, they can carry out experiments to identify which genes in the finch's brain are most critical to hearing and producing song - and by extension, which genes may play a role in human speech disorders, like those related to stuttering, autism,and Parkinson's disease.

VOA: standard.2010.04.05

HSS, by contrast, shoots tightly focused waves of ultrasound (meaning it exceeds the frequency range of human hearing).

FORBES: Now Hear This

The team expects that future, smaller designs will work at ultrasonic frequencies outside the range of human hearing.

ENGADGET: Tiny thermoacoustic engines pave the way for screaming gadgets

Engineered to listen with the intelligence of human hearing, Tiki employs a suite of patent-pending algorithms custom-designed in collaboration with iZotope, foremost experts in audio processing.

ENGADGET: Blue Microphones Tiki USB mic now available at Best Buy, coming to Apple stores July 15th