infrasonic

Or it might have to do with a certain infrasonic harmonic.

Once set to a voice pattern, the infrasonic device could not be altered.

The mechanism of infrasonic call production in elephants has not been determined.

Information about a pioneer in infrasonic applications such as weaponry.

On the other end of the spectrum, the lowest frequencies are known as the infrasonic range.

The majority of the tones played in this test are infrasonic (below 20 Hz).

One of his experiments was an infrasonic whistle, an oversized organ pipe.

Rumbles are produced during mild arousal and some appear to be infrasonic.

Other animal early warning systems may rely on an ability to sense infrasonic waves traveling through the air.

Animals have been known to perceive the infrasonic waves going through the earth by natural disasters and can use these as an early warning.

Internal organs can resonate, or sense a vibration, at certain infrasonic frequencies.

Vibrations below our hearing level are called "infrasonic" and those above it "ultrasonic".

Infrasonic vocalizations have been recorded from captive elephants in many different situations.

This shows that the receptors for infrasonic stimuli may be located in the inner ear.

Now it was a swift, almost infrasonic throbbing.

It has been suggested that giraffes can communicate using infrasonic sound like elephants and blue whales.

At Amboseli, several different infrasonic calls have been identified.

Many conventional subwoofers do not respond very well to infrasonic frequencies.

Infrasonic frequency response measurements include earthquakes and electroencephalography (brain waves).

Megasound has been best remembered for its infrasonic rumble capability.

Infrasonic calls are important, particularly for long-distance communication, in both Asian and African elephants.

Recordings and playback experiments support that elephants use the infrasonic components of their calls for communication.

Not only are some birds known to detect infrasound, but one species has been shown to produce infrasonic calls.

This fluttering can also occur without causing any perceptible sound, suggesting the production of a purely infrasonic call.

In 1984, she and other researchers discovered that elephants make infrasonic calls to one another at distances as far as ten kilometers.