The Colour Scale
The Visual Audio colour scale maps musical notes to colour hues using simple properties of physical wavelengths.
Each colour is the same frequency as its associated note, raised by 40 octaves.
The process:
- Take the frequency of any note. For example, A4 = 440hz (A4 being the A over middle C)
- Doubling this frequency gives us 880hz = A5 (one octave higher). Doubling again gives us 1760hz = A6 and so on.
- By repeating this process several times, we arrive at A44 = 1014hz or 484thz which is the same frequency as the colour orange. In other words, the colour orange is the same frequency as the A note which is 40 octaves above middle A.
- We then simply change the colour brightness to extend colours to full the audio spectrum as follows:
