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DTXPRESS
IV
Owner’s Manual
Appendix
MIDI Data Format
1. Channel Messages
The channel messages described below are sent from the drum triggers only. Other messages are sent from both the drum
triggers and the sequencer.
1.1 Key On, Key Off
Note range: 0 (C-2)–127 (G8)
Velocity range: 0–127
1.2 Control Change
1.2.1 Bank select MSB, LSB–0, 32
data = 0–127
1.2.2 Foot controller–4 (Ch. 10 only)
1.2.3 Main volume–7
1.2.4 Pan–10 (left 0, right 127)
1.3 Program Change
2. System Exclusive Messages
2.1 Parameter Change
2.1.1 GM system ON
$F0 $7E $7F $09 $01 $F7 (hexadecimal)
Sets all messages (except MIDI master tuning) to their initial values.
3. System Realtime Message
3.1 Timing clock
Sends data.
3.2 Start, Stop
Sends data.
3.3 Active sensing
Sends the messages within an interval of approximately 300 msec.
