Sentences with phrase «below human hearing»

Because this frequency is below human hearing, the first tuning fork is set at the first octave above the Schumann Resonance that can be heard.

Her specialty is the presence of sound waves that register below human hearing.

Not exact matches

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).

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.

Eight octaves below the lowest G on a piano, the note is actually outside of human hearing.

«I guessed that the elephants were making sounds below the frequency humans can hear, and I turned out to be right.

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.

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.

A special microphone network that picks up infrasound — sound below the threshold of human hearing — detected the incoming object long before anyone heard it.

Cage is Milton, a literal bat - out - of - hell intent on stopping his granddaughter from being the human sacrifice in cult leader Jonah King's (Billy Burke) ceremony to bring Hades to Louisiana, a quest aided by feisty beauty Piper (Amber Heard) and her ’69 Dodge Charger, and frustrated by the efforts of Satan's Accountant (William Fichtner) to bring Milton back down below.

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.

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.

While the human ear can only hear down to 20Hz, sounds below that are thought to create perceivable variations in air pressure.

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.