Sentences with phrase «ultrasonic frequencies»

These humidifiers create a fine mist by exciting and evaporating water using a small diaphragm that vibrates at ultrasonic frequencies.

(The sounds should be inaudible to human ears though because they're sent using ultrasonic frequencies, according to the Financial Times.)

These pest control units broadcast variable ultrasonic frequencies from 22 KHz to 65 KHz to repel pests and keep them from adjusting to the uncomfortable noise.

FastCompany reports that Chinese researcher have shown that translating voice commands into ultrasonic frequencies inaudible to humans are easily recognized by voice assistants.

That's exciting, he says, because it's «probably less delicate and more robust,» and should inspire engineers to make extremely small, sensitive microphones that can hear in ultrasonic frequencies, as well as improve medical devices like hearing aids.

They took normal voice commands and converted them into ultrasonic frequencies too high for humans to hear, but still perfectly clear for microphones on voice assistants.

The Eliminator ultrasonic pest repeller uses multiple ultrasonic frequencies to repel pests.

Each repeller emits ultrasonic frequencies switching from 22 - 65 KHz to repel pests.

However, instead of audible sound, sonic levitation utilizes higher ultrasonic frequencies that are beyond the range of human hearing.

It eliminates the need for a harmful chemical detergent because of its powerful 42,000 Hz ultrasonic frequency waves which provide an effective cleaning solution.

The Pest Soldier produces ultrasonic frequencies ranging from 20 to 55 kHz to keep pests from making a home within your home.

Variable ultrasonic frequencies discourage pests from moving in.

The device, known as a transducer, identifies structural defects with varying ultrasonic frequencies and overcomes the limits of other, similar devices, which are based on rigid structures and have narrow ranges.

If you want a really safe product, you might want to consider ultrasonic frequency neck bands as these utilize high - pitched, ultra-high frequency sounds to disorient fleas and ticks.

Ultrasonic Humidifier: In this case, instead of the fan there is a little metal diaphragm, which vibrates at ultrasonic frequency, breaking the water into small drops, which then becomes a vapor mist.

A group of researchers discovered that ultrasonic frequencies inaudible to humans can be used as a way to access voice - enabled assistants such as Siri, Google Assistant, and Cortana.

Security researchers have warned that voice assistants made by the likes of Amazon, Google and Apple could be «hacked» by remote attackers broadcasting commands in ultrasonic frequencies.

This pest control product switches between multiple ultrasonic frequencies to keep unwanted critters from adapting to the discomfort.

Each unit covers 120 - 150 square meters with variable ultrasonic frequencies — that's over 1,200 square feet!

It's humane and will not emit ultrasonic frequencies.

A team of researchers at China's Zhejiang University discovered the vulnerability; dubbing the technique as «DolphinAttack», researchers have managed to modulate the frequency of a voice command made by a human, into ultrasonic frequencies.

Ultrasonic humidifiers typically use a metal or ceramic diaphragm that vibrates at an ultrasonic frequency to create water droplets.

The nebulizer vibrates at an ultrasonic frequency to create mist that easily dissipates into the air, rather than droplets that fall to the ground.

The variable ultrasonic frequencies are another feature we liked for a long - term solution to mild pest control issues.

To woo females, male mice whistle complex songs at ultrasonic frequencies.

A more sophisticated approach involves vibrating the screen in and out at ultrasonic frequencies, says Colgate.

Already they have developed a preliminary prototype «microphone eardrum,» but so far it works only at ultrasonic frequencies.

The diagnosis of feline heartworm disease is not as straightforward in cats as it is in dogs, but your veterinarian is able to screen them through blood testing, x-rays and an ultrasoundSound or other vibrations having an ultrasonic frequency used in medical imaging.

Those products that use the ultrasonic frequency alone may not be effective indoors.

The outdoor ones generally use an ultrasonic frequency and / or water.

The ultrasonic frequency or even the audible alarm may not be effective on a cat who is comfortable inside the house.

For indoor use, some use an ultrasonic frequency, others an audible alarm, and others use a spray repellent (such as compressed air), or a combination.

Sound or other vibrations having an ultrasonic frequency, particularly as used in medical imaging.

Your veterinarian may also recommend x-rays and / or abdominal ultrasoundSound or other vibrations having an ultrasonic frequency, particularly as used in medical imaging.

25kHz and 180Hz: Those are the ultrasonic frequencies that Cuban spies might have used in order to eavesdrop on (and potentially deafen) US and Canadian Embassy workers last year, according to a study from the University of Michigan.

The Chromecast guest mode uses an ultrasonic frequency sequence to identify itself and connect to your device.

A group of researchers discovered that ultrasonic frequencies inaudible to humans can be used as a way to access voice - enabled assistants such as Siri, Google Assistant, and Cortana.

On an even more concerning note, playing back audio at these ultrasonic frequencies requires equipment that costs a total of just $ 3, minus the cost of a smartphone; anyone with the technical knowledge can, therefore, make use of the vulnerability.

In order to stop devices from responding to audio at ultrasonic frequencies, the voice assistants would have to begin ignoring commands at 20KHz and other frequencies in which humans can not speak or hear.

Right now, the ultrasonic frequencies may only affect voice assistants when played from 5 or 6 feet away.