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Index › Programming Questions & Help › Sound,  Music Libraries › Map Midi notes to the 7 colours of the spectrum?
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Map Midi notes to the 7 colours of the spectrum??? (Read 657 times)
FranciscoGargallo
Map Midi notes to the 7 colours of the spectrum???
Mar 9th, 2009, 12:04am  

Hi, how are you amigos?,
I am working on my 3rd year project, and need to map the 7 mucical notes, with the 7 colors of the spectrum.

I am trying to figure out best way to do it,
I am using HSB color mode.

I need to map for example all D notes with red hue.
there are 0 to 127 midi notes


my question is, just to know how to do a two dimensional array with processing as I am intenting to first define which numbers define which notes and then with the number of the midi note I will be able to know the name of the note, so then assign a hue value.

hope somebody has got some spare time to help me,

best wishes,
Francisco(london).
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mots
Re: Map Midi notes to the 7 colours of the spectru
Reply #1 - Mar 9th, 2009, 9:20am  
just an idea :

int offset=3;//(0 to 12 number) defines the begining of the scale

int colourNumber =  ((noteNumber+offset)%12); // a scale is 12 semitones.

int hue=colourNumber * 127 / 12;
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FranciscoGargallo
Re: Map Midi notes to the 7 colours of the spectru
Reply #2 - Mar 9th, 2009, 6:44pm  
hi mots!,

first thanks a lot for your help,

that three lines using modular operantions are very interesting,
I got good results with it.
I will send you the link of my project when finish so you see what you contribute, and i will mention your help with this logarithm you show me.

thanks again,
best wishes!
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