| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a melody input device with which an improvement in retrieval accuracy is achieved by performing musical piece retrieval in consideration of chain probability of notes or pitches. <P>SOLUTION: The melody input device (1) equipped with an input means (4) inputting a melody, and an extraction means (6) extracting pitch information from the input melody is equipped with a database (10) including note chain information relating to the chains of the notes and a correction means (11) correcting the note information extracted by the extraction means based on the note chain information in the database. Even when the chains of the notes of the low probability are observed in the input melody, the chains are corrected according to the chain probability of the correct notes and therefore, when the device is applied to, for example, the musical piece retrieval device, wrong musical piece retrieval does not occur. <P>COPYRIGHT: (C)2007,JPO&INPIT |
