Tag: sonification

  • See and hear three years of solar fireworks

    See and hear three years of solar fireworks

    At the start of this new year, close-up pictures and solar flare data that the ESA-led Solar Orbiter mission has been recording for more than three years. See and hear for yourself how the number of flares and their intensity increase, a clear sign of the Sun approaching the peak of the 11-year solar cycle.

    This video combines ultraviolet images of the Sun’s outer atmosphere (the corona, yellow) taken by Solar Orbiter’s Extreme Ultraviolet Imager (EUI) instrument, with the size and locations of solar flares (blue circles) as recorded by the Spectrometer/Telescope for Imaging X-rays (STIX) instrument. The accompanying audio is a sonification based on the detected flares and the spacecraft’s distance to the Sun.

    Solar Orbiter moves on an elliptical path around the Sun, making a close approach to our star every six months. We can see this in the video from the spacecraft’s perspective, with the Sun moving closer and farther over the course of each year. In the sonification, this is represented by the low background humming that loudens as the Sun gets closer and becomes quieter as it moves further away. (There are some abrupt shifts in distance visible in the video, as it skips over dates where one or both instruments were inactive or collecting a different type of data.)

    The blue circles represent solar flares: bursts of high-energy radiation of which STIX detects the X-rays. Flares are sent out by the Sun when energy stored in ‘twisted’ magnetic fields (usually above sunspots) is suddenly released. The size of each circle indicates how strong the flare is, with stronger flares sending out more X-rays. We can hear the flares in the metallic clinks in the sonification, where the sharpness of the sound corresponds to how energetic the solar flare is.

    Many thanks to Klaus Nielsen (DTU Space / Maple Pools) for making the sonification in this video. If you would like to hear more sonifications and music by this artist, please visit: https://linktr.ee/maplepools
    Solar Orbiter is a space mission of international collaboration between ESA and NASA, operated by ESA.

    —————————————————
    Credits
    Credit: ESA & NASA/Solar Orbiter/EUI & STIX, Klaus Nielsen (DTU Space/Maple Pools)
    Acknowledgements: Data processing for video by Laura Hayes
    License: CC BY-SA 3.0 or ESA Standard License

    Video credit slate
    Solar Orbiter animation: ESA
    Sun images: ESA & NASA/Solar Orbiter/EUI
    Solar flare data: ESA & NASA/Solar Orbiter/STIX
    Data processing for video: Laura Hayes
    Data sonification & music: Klaus Nielsen (DTU Space/Maple Pools)
    —————————————————

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  • Sonification of Aeolus

    Sonification of Aeolus

    ESA’s Earth Explorer Aeolus satellite was launched in August 2018 on a trailblazing mission to show how profiling Earth’s winds from space can improve weather forecasts and climate models. Data from its pioneering wind-mapping laser, which at one stage was thought a nigh-impossible feat of engineering, has been used by leading weather forecasting services throughout Europe.

    Marking the end of Aeolus’ remarkable mission, ESA worked with composer Jamie Perera to create a woodwind piece from data that spans the lifetime of the satellite’s life in orbit around Earth.

    In the resulting orchestral piece, every second is a day in the life of Aeolus, with data represented by the following instruments:

    Piccolo: Rayleigh Top Altitude (the tops of clouds)
    Flute: Rayleigh Observation Type (density of clouds)
    Oboe: Rayleigh Reference Temperature (wind temperature)
    Clarinet 1: Rayleigh Wind Velocity (wind velocity)
    Clarinet 2: Rayleigh Wind Reference Pressure (air pressure)
    Bassoon/Bass Clarinet: Rayleigh Bottom Altitude (Earth’s surface)
    Ambient Synth: Validity Flag 0 (Aeolus downtime)

    You can also hear landmark events such as volcanic eruptions represented by drums, hurricanes represented by wind sound effects, and the Coronavirus pandemic represented by a pulsing synth.

    The full guide to the performance is also available to download in PDF 👉 https://esamultimedia.esa.int/docs/EarthObservation/Life-of-Aeolus-Performance-Guide.pdf

    Read full story 👉 https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Aeolus/The_sound_of_Aeolus_will_blow_you_away

    Credits: E. Trometer (sonification & music: J. Perera)

    ESA Earth Observation Twitter: https://twitter.com/ESA_EO
    ESA Aeolus Mission Twitter: https://twitter.com/esa_aeolus
    ESA Earth Observation Instagram: https://www.instagram.com/esa_earth

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  • Listen to the sonification of the largest eruption of the 21st century 🌋 #shorts

    Listen to the sonification of the largest eruption of the 21st century 🌋 #shorts

    Sounds assembled by https://www.jamieperera.com/

    Read more: https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Aeolus/Looking_back_at_the_eruption_that_shook_the_world

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  • 5,000 Exoplanets: Listen to the Sounds of Discovery (360 Video)

    5,000 Exoplanets: Listen to the Sounds of Discovery (360 Video)

    On March 21, 2022, the number of known exoplanets passed 5,000 according to the NASA Exoplanet Archive. This 360-degree animation and sonification tracks humanity’s discovery of the planets beyond our solar system over time. Turning NASA data into sounds allows users to hear the pace of discovery with additional information conveyed by the notes themselves.

    As each exoplanet is discovered, a circle appears at its position in the sky. The size of the circle indicates the relative size of the planet’s orbit and the color indicates which planet detection method was used to discover it. The music is created by playing a note for each newly discovered world. The pitch of the note indicates the relative orbital period of the planet. Planets that take a longer time to orbit their stars are heard as lower notes, while planets that orbit more quickly are heard as higher notes.

    Exoplanet detection methods: radial velocity (pink); transit (purple); imaging (orange); microlensing (green); timing variations (red); orbital brightness modulation (yellow); astrometry (gray); disk kinematics (blue).

    Please note: Not all browsers support viewing 360 videos. YouTube supports their playback on computers using Chrome, Firefox, MS Edge, and Opera browsers. For the best experience on a mobile device, play this video in the YouTube app.

    Credit: NASA/JPL-Caltech/M. Russo, A. Santaguida (SYSTEM Sounds)

  • 5,000 Exoplanets: Listen to the Sounds of Discovery (NASA Data Sonification)

    5,000 Exoplanets: Listen to the Sounds of Discovery (NASA Data Sonification)

    On March 21, 2022, the number of known exoplanets passed 5,000 according to the NASA Exoplanet Archive. This animation and sonification tracks humanity’s discovery of the planets beyond our solar system over time. Turning NASA data into sounds allows users to hear the pace of discovery, with additional information conveyed by the notes themselves.

    As each exoplanet is discovered, a circle appears at its position in the sky. The size of the circle indicates the relative size of the planet’s orbit and the color indicates which planet detection method was used to discover it. The music is created by playing a note for each newly discovered world. The pitch of the note indicates the relative orbital period of the planet. Planets that take a longer time to orbit their stars are heard as lower notes, while planets that orbit more quickly are heard as higher notes.

    Credit: NASA/JPL-Caltech/M. Russo, A. Santaguida (SYSTEM Sounds)

  • Sound of a close Venus flyby #shorts

    Sound of a close Venus flyby #shorts

    A sonification of data recorded by the Italian Spring Accelerometer (ISA) aboard the BepiColombo Mercury Planetary Orbiter spacecraft during the flyby of Venus on 10 August 2021. The accelerometer data was converted to frequency to be made audible to the human ear. The resulting sound is rich with interesting effects due to the planet’s gravity acting on the spacecraft structure, the response of the spacecraft to the rapid temperature changes, and the change in reaction wheel velocity as they work hard to compensate for these effects.

    The audio has been matched to the timing that the images seen in this movie were captured, in the moments after closest approach.

    Read more: https://www.esa.int/Science_Exploration/Space_Science/Sights_and_sounds_of_a_Venus_flyby

    Credit:
    Images: ESA/BepiColombo/MTM, CC BY-SA 3.0 IGO
    Audio: ESA/BepiColombo/ISA/ASI-INAF, CC BY-SA 3.0 IGO

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  • Sonification of a Hubble Deep Space Image

    Sonification of a Hubble Deep Space Image

    Space becomes “sonified” in this visualization of a cluster of galaxies imaged by NASA’s Hubble Space Telescope. Time flows left to right, and the frequency of sound changes from bottom to top, ranging from 30 to 1,000 hertz. Objects near the bottom of the image produce lower notes, while those near the top produce higher ones. Most of the visible specks are galaxies housing countless stars. A few individual stars shine brightly in the foreground. Stars and compact galaxies create short, clear tones, while sprawling spiral galaxies emit longer notes that change pitch. The higher density of galaxies near the center of the image — the heart of this galaxy cluster, known as RXC J0142.9+4438 — results in a swell of mid-range tones halfway through the video. Hubble’s Advanced Camera for Surveys and Wide Field Camera 3 acquired this image on Aug. 13, 2018.

    Download this video:
    https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=13061

    Credit: NASA/Hubble/SYSTEM Sounds (Matt Russo/Andrew Santaguida)

  • NASA | Sun Sonification (raw audio)

    NASA | Sun Sonification (raw audio)

    These are solar sounds generated from 40 days of the Solar and Heliospheric Observatory’s (SOHO) Michelson Doppler Imager (MDI) data and processed by A. Kosovichev. Read more & download audio: https://go.nasa.gov/2JR0wLL

    The procedure he used for generating these sounds was the following. He started with doppler velocity data, averaged over the solar disk, so that only modes of low angular degree (l = 0, 1, 2) remained. Subsequent processing removed the spacecraft motion effects, instrument tuning, and some spurious points. Then Kosovichev filtered the data at about 3 mHz to select clean sound waves (and not supergranulation and instrumental noise). Finally, he interpolated over the missing data and scaled the data (speeded it up a factor 42,000 to bring it into the audible human-hearing range (kHz)).

    For more audio files, visit the Stanford Experimental Physics Lab Solar Sounds page.​ http://soi.stanford.edu/results/sounds.html

    Credits: A. Kosovichev, Stanford Experimental Physics Lab

    Supporting materials can be downloaded from NASA’s Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/13011