Patent ID: 6437227
Filing Date: 2002-08-20
Classification: G10H

Abstract:
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 Â¼ note, and comparing the tone duration of each tone allocated an appropriate musically quantized note duration comprising {fraction (1/32)}, {fraction (1/16)}, &frac18;, Â¼, Â½, 1, with an ascertained note duration of a Â¼ 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.