| 摘要 |
PROBLEM TO BE SOLVED: To simply and accurately detect a boundary of a plurality of musical pieces.SOLUTION: The determination device includes: sound volume detection means for detecting a sound volume at recording time with respect to each of a plurality of musical piece parts constituting a musical piece group including a plurality of musical pieces M1, M2; and determination means for determining a period corresponding to an overlapped period as a boundary of two musical pieces sandwiching the overlapped period among the plurality of musical pieces when the period in which the detected sound volume becomes equal to or less than a reference sound volume is overlapped with respect to each of the plurality of musical piece parts. |
