| 摘要 |
PURPOSE:To eliminate the auditory time difference between main data and MIDI data in reproduction by controlling the output transmission timing of a main data reproduction system and a MIDI data reproduction data according to time difference data recorded on a digital signal recording medium. CONSTITUTION:The main data which is recorded in a main signal recording area by imposing EFM demodulation on read data and subordinate code data recorded in an auxiliary signal recording area are D/A-converted through an audio data buffer 6 respectively. The subordinate code data which is passed through a subordinate code data error correcting circuit is bit-converted to demodulate the MIDI data and the time difference data between the main data and MIDI signal is obtained to control the read delay quantity between an audio data buffer 6 and a MIDI data buffer 10. The demodulated MIDI data is received through the MIDI data is received through the MIDI data buffer 10 and a MIDI output is sent out. Consequently, the auditory time difference between the main data and MIDI data in reproduction is eliminated. |
