| 摘要 |
PROBLEM TO BE SOLVED: To secure plural music channels for musical sound data and to record a musical information digital signal of MIDI data, etc., on a storage medium in the same recording format, i.e., as sound data when the musical sound digital signal is recorded on one recording medium together with music data. SOLUTION: To record the MIDI data as a sound signal on one channel of a DVD 22 where sound signal of plural channels can be recorded, the sound signals to be recorded according to the inputted MIDI data are converted into sound signals through the 16-valued differential phase shift keying(DPSK) of a modulating device 10 and an audio recording device 20 records the converted sound signals on the DVD 22 together with musical sound signals of plural channels which are supplied from outside. |
