Sentences with phrase «kilohertz sound»

Not exact matches

Dolphins can produce sound at frequencies up to 200 kilohertz — around 10 times as high as the highest pitch we can hear — and can also shift a signal's pitch or stretch it out over a long period of time.

The speaker briefly emitted an audible chirp — sweeping from 200 hertz to 10 kilohertz — and the reflections were analysed to successfully reveal the cathedral's 3D shape and the location of the sound source (PNAS, DOI: 10.1073 / pnas.1221464110).

She set up microphones at the Philippine Tarsier Sanctuary and found the animals were emitting sounds up to 75 kilohertz; humans can not hear past 20 kilohertz.

Ultrasound is sound with a frequency greater than the upper limit of human hearing, approximately 20 kilohertz (20,000 hertz).

Your item on Jurassic katydid calls suggests that sounds at 6.4 kilohertz «can travel long distances» (11 February, p 18).

Each lightning network site hosts an 8 - to 12 - foot antenna that registers frequencies in the 10 kilohertz band, and sends that information to a sound card on an Internet - connected laptop.

«The sound had peaks in the 2 - 3 kilohertz range.

Boom Boxes Ultrasonic «boom boxes» that emit continuous high - frequency sounds from 20 to 100 kilohertz deter bats from getting too close to turbines by interfering with their echolocation.

The comet's song would not be audible to the human ear because it is being emitted at 40 to 50 millihertz, far below the range of human hearing, which typically picks up sound between 20 hertz and 20 kilohertz.

Ultrasound refers to sounds at frequencies above 20 kilohertz.