infraääni

Infraääni, also known as infrasound, refers to sound waves with frequencies below the lower limit of human audibility, typically considered to be around 20 Hertz (Hz). While humans cannot consciously hear infrasound, it can be perceived through other bodily sensations and has been linked to various phenomena and potential effects.

Sources of infrasound are diverse, both natural and man-made. Natural sources include seismic activity such as earthquakes, volcanic eruptions, avalanches, severe weather events like thunderstorms and hurricanes, and even ocean waves. Large-scale atmospheric phenomena can generate significant infrasound. Man-made sources include industrial machinery, wind turbines, heavy traffic, explosions, and certain types of aircraft.

The effects of infrasound on humans are a subject of ongoing research and debate. Some studies suggest that prolonged exposure to high-intensity infrasound might cause symptoms like fatigue, nausea, dizziness, disorientation, and anxiety. However, establishing a direct causal link and understanding the precise mechanisms of these effects is challenging. Many reported symptoms are subjective and can be influenced by other factors.

The study of infrasound is important for various applications, including seismic monitoring, weather forecasting, and understanding acoustic phenomena. Specialized equipment is required to detect and analyze infrasound, as it falls outside the range of standard audio equipment. Its subtle nature and potential impact continue to be areas of scientific interest and investigation.