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Apparatus and method for visualization of music using note extraction

  • US 7,875,787 B2
  • Filed: 02/02/2009
  • Issued: 01/25/2011
  • Est. Priority Date: 02/01/2008
  • Status: Expired due to Fees
First Claim
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1. A method for visualizing music, comprising the steps of:

  • (a) placing twelve labels in a pattern of a circle, said twelve labels corresponding to twelve respective notes in an octave, such that moving clockwise or counter-clockwise between adjacent ones of said labels represents a musical half-step;

    (b) identifying an occurrence of a first one of the twelve notes;

    (c) identifying an occurrence of a second one of the twelve notes;

    (d) identifying a first label corresponding to the first note;

    (e) identifying a second label corresponding to the second note;

    (f) creating a first line connecting the first label and the second label, wherein;

    (1) the first line is a first color if the first note and the second note are separated by a half step;

    (2) the first line is a second color if the first note and the second note are separated by a whole step;

    (3) the first line is a third color if the first note and the second note are separated by a minor third;

    (4) the first line is a fourth color if the first note and the second note are separated by a major third;

    (5) the first line is a fifth color if the first note and the second note are separated by a perfect fourth; and

    (6) the first line is a sixth color if the first note and the second note are separated by a tri-tone;

    wherein said identifying an occurrence of a first one of the twelve notes step comprises the steps of;

    (1) receiving a raw audio input signal;

    (2) performing a fast fourier transform analysis on said raw audio input signal to determine a first primary frequency;

    (3) determining an occurrence of a first one of the twelve notes based on the first primary frequency; and

    wherein said identifying an occurrence of a second one of the twelve notes step comprises the steps of;

    (1) performing a fast fourier transform analysis on said raw audio input signal to determine a second primary frequency;

    (2) determining an occurrence of a second one of the twelve notes based on the second primary frequency.

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