Infrasound, sometimes referred to as low frequency sound or incorrectly subsonic (subsonic being a descriptor for "less than the speed of sound"), [1] describes sound waves with a frequency below the …

Mar 9, 2025 · Infrasound (aka subsonic sound) is the term used to describe sounds that are so low that we can't hear them. Humans can hear within a range of around 20Hz to 20,000Hz (audible …

Aug 13, 2025 · Infrasound is sound waves below 20 Hz frequency, which are sounds that the human ear can not typically detect. Infrasound can travel long distances and even pass through solid objects.

Jun 11, 2022 · Infrasound is sound below 20 Hz—too low to hear but not without effects. Learn how infrasound works, where it occurs, and how it impacts humans and animals.

What is infrasonics? What are infrasound waves and how are they different from normal sound? What is the frequency range of infrasound? Where can infrasonic waves be found in nature?

Infrasound, in its popular definition as sound below a frequency of 20 Hz, is clearly audible, the hearing threshold having been measured down to 1.5 Hz. The popular concept that sound below 20 Hz is …

Sep 5, 2025 · With its prefix being Latin for “below”, infrasound is exactly what it says: sound with a frequency below the normal limit of human hearing. In other words: real, real low noises.

Infrasound consists of sound waves with frequencies below the human hearing threshold, typically less than 20 Hertz (Hz). Though inaudible, these low-frequency waves carry substantial information.

Oct 13, 2025 · Underground movements can create infrasound rumbles in the atmosphere. And such sounds can provide early warnings of earthquakes or volcanic eruptions. Humans may not be able …

This page presents examples of sounds recorded by a variety of infrasound recording systems. Signal processing algorithms were used to make them audible and occasionally pleasant.