Musically Encoded Galaxy Spectra

Sonification Design by Marty Quinn

In this sonification of Galaxy Spectra derived from data from the Arecibo Radio Telescope, the guitar express the values from each dataset considered in isolation from other datasets. In the compare examples, the piano sound expresses how this dataset would sound when considering it in relation to the high and low values of all five files. The data is expressed by mapping low values to low notes and high values to higher notes within an expressive range of a 97 note chromatic scale. The fractional part left over is further used to control a range of pan locations for the resulting sound. For the piano, we pan within a range of 0 to 29, on the left, and for the guitar we pan within a range of 98 to 127, on the right. The fractional part of the pan mapping is further expressed in a range of volumes for each sound ranging from 89 to 110. So the number of theoretical perceptual resolution bins is 97 * 30 * 30 or 87300. ©2006 Design Rhythmics Sonification Research Lab

 

Image

Track

Duration

Track

Duration

Notes

5957

:27

5957-Compare

:22

4673

:33

4673-Compare

:33

5253

:17

5253-Compare

:17

5291

:26

5291-Compare

:26

Image should be reversed to reflect data order

m83

:15

m83-Compare

:15

Image should be reversed to reflect data order