| 摘要 |
PURPOSE: A music information analysis apparatus and a method thereof which uses a neural network computing are provided to obtain basic information which consists of music by using music. CONSTITUTION: Neural network learning is performed for voice extraction. Neural network learning is performed for harmony pattern recognition. A polyphonic harmony is extracted to monophonic harmony. The pitch of the extracted voice is analyzed(5). Harmony is analyzed from a polyphonic harmony sound source(9). The analyzed data is re-configured as a music file(11). [Reference numerals] (1) Bit analysis; (10) Finishing; (11) Music file; (2) Key analysis; (3) Normalizing a data C key standard; (4) Allocating voice; (5) Analyzing a single harmony note; (6) Correlation; (7) Pitch class profile; (8) Comparison; (9) Polyphonic harmony sound source; (AA) Music file; (BB,CC) Window(block) determination; (DD) Reference pitch class profile; (EE,FF) Nerve network usage
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