Previous research found that the painful parts of unpleasant sounds appear to be in the middle range of audible frequencies.

先前的研究发现，能够引起不快的声音中那些令人痛苦的部分处在可听频率范围的中间。

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There is some CPU noise audible on some frequencies if you use a rubber duck antenna on the front panel.

有一些CPU在某些频率的噪音发声如果您使用前面板上的一个橡胶鸭天线。

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The ultrasonic sensor produces a data carrier utilizing very high frequencies that are outside the human's audible range.

超声波传感器的数据载体产生的可听范围内使用非常高的频率，不属于人类。

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Now, Dr Cummer and his colleagues have shown off an acoustic cloaking technique that works in air, for audible frequencies between one and four kilohertz - corresponding to two octaves on the higher half of a piano.

BBC: Acoustic 'cloaking device' shields objects from sound

The missing ingredient turned out to be sub-bass: The lowest frequencies audible to the human ear, used extensively by dance acts to give their rhythm tracks an added wallop.

BBC: Sound of 2013: Haim

Philips DoubleBASS uses the powerful processing of the system to detect ultra-low frequencies and then recreate them within the audible frequency range of the subwoofer, giving the impression of delivering bass down to an amazing 20Hz.

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