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root / _chroma / pitch2octave.m

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function strout = pitch2octave(pitch)
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octave = floor((pitch-60)/12);
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if octave < 0
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    sig = '-';
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else
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    sig = '''';
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end
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strout = '';
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for iOct = 1:abs(octave)
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    strout = [strout,sig];
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end