12/7/2023 0 Comments Blackhole audio download![]() These short sonifications typically take a few hours to create, but with the right data, can be completed using sound engineering software and other publicly available computer programs, like Python. For example, scientists can create parameters for all kinds of numerical data by assigning those values to higher or lower pitches, or vice versa, to turn them into musical notes. ![]() Translating scientific data into acoustic signals has also become vastly easier in the past few years. “This sort of bespoke method is really about extrapolating something new out of this archival information,” says Kimberly Arcand, the visualization scientist for NASA’s Chandra X-ray Observatory who led the research. It’s one of the closest clusters to Earth, around 240 light-years away. A team of scientists at NASA’s Chandra X-ray Observatory were able to extract and make audible previously identified sound waves from a nearly 20-year-old image of the Perseus galaxy cluster-a collection so full of galaxies, it’s assumed to be one of the most massive objects in the universe. The universe is rife with the hum of celestial melodies-but it’s only relatively recently that humans have developed the technology to be able to hear them. Sonification: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. ![]() The signals were then resynthesized into the range of human hearing by scaling them upward by 57 and 58 octaves above their true pitch-or in other words, they are being heard 144 quadrillion and 288 quadrillion times higher than their original frequency. The sound waves were extracted in radial directions, that is, outwards from the center. "But it's sometimes used to make things seem more 'profound' than they are, like here.In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time. However, some scientists cautioned that the sonification process was often used to make sounds in space appear more "profound" than they actually are.Ĭhris Lintott, professor of astrophysics at the University of Oxford, wrote on Twitter: "Sonification of data is fun, and can be useful - especially for those who may not be able to see images. belching out incredible songs is a very tantalising thing." Kimberly Arcand, the principal investigator of the Nasa sonification project, told the Washington Post: "The idea that there are these supermassive black holes sprinkled throughout the universe that are. The soundwaves have been likened to Pink Floyd or Hans Zimmer. Here it's amplified, and mixed with other data, to hear a black hole." ![]() "A galaxy cluster has so much gas that we've picked up actual sound. 'A galaxy cluster has so much gas we've picked up actual sound'Ī spokesman for Nasa said: "The misconception that there is no sound in space originates because most space is a vacuum, providing no way for sound waves to travel. It was first picked up by Nasa’s Chandra X-ray Observatory in 2003, but researchers have only recently made it audible in a process known as "sonification". "Another way to put this is that they are being heard 144 quadrillion and 288 quadrillion times higher than their original frequency," a spokesperson for Nasa said. The noise is created by pressured waves coming from the black hole which caused ripples in the hot gas, and is 57 octaves below middle C, meaning scientists had to raise the frequency to make it audible to humans. It can be heard because galaxy clusters contain so much gas that they can allow sound to travel, unlike in vacuums where soundwaves have nothing to bump into. The echoey moans sound similar to whale noises, or a record being played at a slower RPM. Scientists have released 34 seconds of actual sound coming from the black hole at the centre of the Persus galaxy cluster, some 240 million light years away from Earth, and it is, to say the least, creepy. It is said in space there is no one to hear you scream, but around a galaxy cluster, you might just be heard.
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