Art-Music Project

Blog about project to convert between music and visual art by Robert Dawson

Mapping of color to sound

Music is governed by harmony, whereas visual art can be appreciated with a much looser application of visual stimuli.

On the chromatic scale, doubling the frequency of a pitch increments by one octave. For example, note A4 is 440 Hz, so A5 is 880 Hz.

Since sound requires such precision to be appreciated as music, we can apply this doubling rule to color to achieve a harmonic conversion. The spreadsheet below shows this mapping.

Color-sound mapping

I still have a lot of work to do. For example, color frequencies increase well beyond the range of the basic colors. I'm hoping this can equate to light or dark versions. 

Color analysis

Tonight, I made a color analysis, comparing RGB, HSV, and hex values. Included are two sets of colors. One contains primary and secondary colors, giving the famous ROYGBIV minus the I or indigo. The other set is the first plus additional colors to fill in the gaps and give a 30° distribution.

Observations 

  • Green at #00FF00 looks more like lime green. #008000 better resembles what I think of as "true" green.
  • An even V(alue) distribution results in a lot of green! Therefore, I surmise that the plant world turned green to appear popular among lifeforms, especially given that they can't really move on their own for the most part.