Sentences with phrase «of human hearing»

There's a lot of chatter outside the range of human hearing.
Dogs can also hear in ultrasound, which is sound with a frequency greater than the upper limit of human hearing.
Your dog's ears are delicate, sensitive, finely tuned instruments allowing her to pick up sounds far out of the range of human hearing.
The one atom - thick wonder material known as graphene could be incorporated into speakers and microphones to enable them to process sounds far below and above the limits of human hearing.
Broadly defined as sound waves longer than 56 feet, infrasound lies below the rumbling 20 - hertz bass notes at the threshold of human hearing.
squeakers are tuned to an ultrasonic range in the 24 - 28 KHz frequency, which is out of human hearing range, but still fun for your best furry friend.
Although the basic outlines of human hearing have been known for years — sensory cells in the inner ear turn sound waves into the electrical signals that the brain understands as sound — the molecular details have remained elusive.
Identifying such players can eventually assist in isolating pathogenic variants or regulatory elements that can be at the root of human hearing and balance disorders.»
Among those he examined was MP3, the popular audio coding format launched in the 1990s, which uses sophisticated models of human hearing to compress audio data by removing sounds that are masked.
«The approach of using sonification is rather general and could be meaningful for many areas, as it exploits a basic property of human hearing versus sight,» Henry said.
Eight octaves below the lowest G on a piano, the note is actually outside of human hearing.
That was the 50 - kilohertz chirp [at a pitch far above the range of human hearing].
I learned that she then went on to discover, in the 80s, that elephants partly use infrasound (sound below the level of human hearing) to communicate.
Bat watching is a bit more difficult because they're nocturnal animals so they're not always visible in the night sky and the sounds they make while echolocating are ultrasonic, which means they're above the frequency of human hearing.
The Apple iPhone X and Google Pixel 2 (white, green) appear to use a filter to limit high frequencies at the outer reaches of human hearing.
Ultrasound consists of mechanical vibrations, like sound, but with frequencies far greater than the upper limit of human hearing, around 20 thousand to 20 million cycles per second (20 kilohertz to 20 megahertz).
A special microphone network that picks up infrasound — sound below the threshold of human hearing — detected the incoming object long before anyone heard it.
squeaker is out of human hearing range, but still fun for your four - legged friend.
The researchers tracked the clanging sound to vibrations in the bottom of the club head, called the sole, that were strongest in the most sensitive range of human hearing.
View Our Range of Sound Machines for Tinnitus White noise is characterized as a constant sound that «contains every frequency within the range of human hearing
White noise is characterized as a constant sound that «contains every frequency within the range of human hearing
Frequency: The range of human hearing is 20 - 20,000 Hz.
When they speeded up the frequency of the volcano recordings to within the range of human hearing the distribution of frequencies closely resembled a Boeing 747 jet engine.
Each headphone plays a tone of a slightly differing frequency, which creates a pulsating beat that is felt but not heard (because it is below the range of human hearing).
This recording, with help from a bat detector, has captured a fuller range of caterpillar frequencies, including some normally beyond the range of human hearing.
Voice assistants can be controlled using sounds above the range of human hearing and used to download malware, make video calls and post on social media
Some companies watermark their audio files by encoding copyright information in frequencies outside the range of human hearing, which are normally discarded by compression algorithms.
However, instead of audible sound, sonic levitation utilizes higher ultrasonic frequencies that are beyond the range of human hearing.
The Comprehensive Nuclear Test Ban Treaty Organisation, which watches out for nuclear weapons tests worldwide, looked at its data for the last few days to see if its infrasound — below the range of human hearing — recordings, normally used to seek out the muffled crump of underground tests, contained any signature of an aircraft explosion.
Scientists in Spain and England tiled a platform with dozens of speakers that emitted 40 - kilohertz sound waves, beyond the range of human hearing.
The resulting saser can build up an intense, pure sound wave at a specific frequency in the terahertz range (far, far above the limit of human hearing) for a few billionths of a second.
Infrasound, sometimes called low - frequency sound, is sound waves that occur at frequencies lower than the limit of human hearing.
Limits of human hearing (infrasound and ultrasound) examined.»
Ultrasound is sound with a frequency greater than the upper limit of human hearing, approximately 20 kilohertz (20,000 hertz).
When bats echolocate, they emit rapid - fire, high - frequency clicks (usually out of range of human hearing), then swivel their ears like radar dishes to catch the echoes, a system sensitive enough to detect objects as thin as a human hair and tiny, night - flying insects.
Far, far below the range of human hearing, waves of energy are coursing through the crust, causing the ground beneath your feet to rise and fall about three - millionths of an inch every few minutes.
Only 5 years ago, scientists discovered that the high - pitched squeaks male mice make while courting females are actually complex love songs beyond the range of human hearing.
The scientists tested their invention with sound waves within the range of human hearing and showed that sound levels dropped by about 6 decibels between air and water, compared with a drop of about 28 decibels without the structure.
But for reasons that researchers only partially understand — the physiological limits of human hearing, for example, and cultural preferences that have evolved over time — most music is based on variations of only five to 12 notes.
But it's not easy for researchers to link the pachyderms» calls — many of which are beyond the range of human hearing — to particular events.
Its frequency is near 10 millihertz, below the range of human hearing.
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.
Those harmonics whose frequency is at the upper limit of human hearing, ie, above 20 k are not perceptible to our ears, and neither are those whose intensity level is below the audible threshold for this frequency.
Frequency sweep — 1,000 to 20 hertz; a bass test tone that sweeps toward the lowest limit of human hearing to check subwoofer performance and panel resonance
Dogs can hear sounds out of the range of human hearing, and they can hear sounds farther away than people can.
The shock collars for dogs provide an electric current, the citronella dog collars provide a spray of citrus, and the sonic dog collars produce a tone that only the dog can hear (it's out of human hearing range).
advocating that infrasound be ignored because the measured levels are below the threshold of human hearing, allowing noise levels to be adequately documented through A-weighted sound measurements, 2.
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