infrasonic

• The effects of eigenmode reinforcement and infrasonic resultants on organ recordings not employing a high-pass filter are more pronounced. —  Stereophile RSS Feed
• Matoza measured infrasonic sound from Mount St. Helens in Washington State and Tungurahua volcano in Ecuador, both of which are highly active volcanoes close to large population centers. —  PhysOrg.com - latest science and technology news stories
• Using 100-meter aperture arrays of microbarometers, similar to weather barometers but sensitive to smaller changes in atmospheric pressure and low-frequency infrasonic microphones, the research team tested the hypothesis, revealing the physics of how the large-amplitude signals from eruptions are produced. —  PhysOrg.com - latest science and technology news stories
• Matoza and colleagues recorded these very large-amplitude infrasonic signals during the times when ash-laden gas was being ejected from the volcano. —  PhysOrg.com - latest science and technology news stories
• Large-amplitude infrasonic signals from volcanic eruptions are currently used in a prototype real-time warning system that informs the Volcanic Ash Advisory Center (VAAC) when large infrasonic signals have come from erupting volcanoes. —  PhysOrg.com - latest science and technology news stories

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