Tag Archives | Audio Recording

Listen to Japan’s 9.0 Quake: Seismic Waves as Sound

Quake AudioVia Futurity:

Zhigang Peng, associate professor in School of Earth and Atmospheric Sciences at the Georgia Institute of Technology, has converted the earthquake’s seismic waves into audio files. The results allow experts and general audiences to “hear” what the quake sounded like as it moved through the earth and around the globe.

“We’re able to bring earthquake data to life by combining seismic auditory and visual information,” says Peng, whose research appears in the March/April edition of Seismological Research Letters.

“People are able to hear pitch and amplitude changes while watching seismic frequency changes. Audiences can relate the earthquake signals to familiar sounds such as thunder, popcorn popping and fireworks.”

The different sounds can help explain various aspects of the earthquake sequence, including the mainshock and nearby aftershocks …

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Study Shows Audio Records of U.S. History Fading Fast

With all the new technology it is easy to record and document almost anything. A recent study shows that keeping it, however, is a bit harder. From Daily Mail:

New digital recordings of events in U.S. history and early radio shows are at risk of being lost much faster than older ones on tape and many are already gone, according to a study on sound released Wednesday.

Even recent history — such as recordings from 9/11 or the 2008 election — is at risk because digital sound files can be corrupted and widely used CD-R discs last only last three to five years before files start to fade, said study co-author Sam Brylawski.

“I think we’re assuming that if it’s on the Web it’s going to be there forever,” he said. “That’s one of the biggest challenges.”

The first comprehensive study of the preservation of sound recordings in the U.S.

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