| 摘要 |
<P>PROBLEM TO BE SOLVED: To permit the utilization of music consisting of a singing voice and a BGM (background music), as the ringing tone, even in the present kind of mobile phone that is not equipped with a large-capacity memory, the MP3 (MPEG 1-Audio Layer-3) recorder, or the like. <P>SOLUTION: There are provided with a singing voice extraction part 2 for extracting the singing voice of a person from digital sound source data 11 and for obtaining singing voice data 12 according to the ADPCM (adaptive differential pulse code modulation) format, a BGM generation part 13 for generating the BGM data 13 according to the MIDI (music instrument digital interface) format, an MIDI adjustment part 4 for generating simulated singing voice data according to the MIDI format matching with the extracted singing voice and for adding it to the BGM data 13, and a file generation part 5 for processing the singing voice data 12 and the BGM + simulated singing voice data 14 into one music file 15. The overall amount of the data is reduced by heavily limiting the band with respect to the singing voice part and by generating the BGM part according to the MIDI format, and the quality of the reproduced singing voice can be maintained so as to be not less than a prescribed level, by supplementing the deteriorated singing voice part due to the band limitation with the MIDI data. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
