US 6,437,227 B1 · Method for recognizing and selecting a tone sequence, particularly a piece of music

Abstract

The invention relates to methods for recognizing and for selecting a tone sequence, particularly a piece of music, which permit a user to request a particular piece of music by singing a section of the piece of music, whose title is unknown to him. This method is distinguished in that a tone sequence which corresponds at least in part to at least a section of the tone sequence which is to be selected is entered, the tones in the entered tone sequence are converted into a note sequence, then, to search for the tone sequence which is to be selected, its note sequence is compared successively with corresponding note sequences for a multiplicity of tone sequences in order to ascertain titles for one or more tone sequences whose note sequence or sequences matches or match the note sequence for the tone sequence which is to be selected in a predetermined manner, and the titles ascertained are output as a list or tone sequences, so that a user can use the title list or tone sequence to select the desired tone sequence.

Claims20

Dependent claims

Method for recognizing a tone sequence, particularly a piece of music, comprising the steps of:

converting the tones in the tone sequence to be recognized into a note sequence by:
ascertaining the pitch frequency fp and the tone duration for each tone in the tone sequence,
allocating to each tone a musical note on the basis of its pitch frequency fp and a musically quantized note duration on the basis of a tone duration distribution of the tone sequence, and
defining the note duration of the tones by:
first ascertaining the median of the tone duration distribution,
equating the tone duration of the median to the note duration of a ¼ note, and
comparing the tone duration of each tone allocated an appropriate musically quantized note duration comprising {fraction (1/32)}, {fraction (1/16)}, ⅛, ¼, ½, 1, with an ascertained note duration of a ¼ note,
searching for the tone sequence which is to be recognized by comparing its note sequence successively with corresponding note sequences for a multiplicity of tone sequences, and
outputting titles for the tone sequence or sequences whose note sequence or sequences matches or match the note sequence for the tone sequence which is to be recognized in a predetermined manner.

6 more elements

Method for selecting a tone sequence, particularly a piece of music, comprising the steps of:

entering a tone sequence which corresponds at least in part to at least a section of the tone sequence to be selected,
converting the tones in the entered tone sequence into a note sequence by:
ascertaining the pitch frequency fp and the tone duration for each tone in the tone sequence,
allocating each tone a musical note on the basis of its pitch frequency fp and musically quantized note duration on the basis of a tone duration distribution of the tone sequence, and
defining the note duration of the tones by:
first ascertaining the median of the tone duration distribution,
equating the tone duration of the median to the note duration of a ¼ note, and
searching for the tone sequence which is to be selected by
comparing its note sequence successively with corresponding note sequences for a multiplicity of tone sequences, in order to ascertain titles for one or more tone sequences whose note sequence or sequences matches or match the note sequence of the tone sequence which is to be selected in a predetermined maner, an
outputting the titles ascertained as a list, so that a user can use the title list to select the desired tone sequence.

7 more elements

Dependencies are inferred from the claim text.

Method for recognizing and selecting a tone sequence, particularly a piece of music

Life of this patent

Method for recognizing and selecting a tone sequence, particularly a piece of music

Life of this patent

Abstract

Claims20