Space Music | Data Sonification

How I See It

Data streams from experiments as 1 and 0 digits. It arrives at very high rates and is stored for later study. From spacecraft, it is used to make images, produce video, and make sense of the universe. Analysis of the digits simply as visual information is great for most of us. Think of the images from Hubble. But, there are other ways we humans are equipped to perceive our world. These rich data sources can also be converted into sounds. Such a process is called data sonification.

Here is an audio file example (20 sec) from U of IA researcher Don Gurnett. It is called a whistler. They result from lightning strikes which send electromagnetic waves along the magnetic field lines of Earth. This image is the spectrum of a whistler comparing frequency to time of signal. The audio adds a lot to the interpretation of this…

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