CHANNEL VOICE MESSAGES

NOTES:

1. nnnn: Voice Channel # (1-16, coded as defined in Table I notes)
2. kkkkkkk: note # (0 - 127)

kkkkkkk = 60: Middle C of keyboard
3. vvvvvvv: key velocity

A logarithmic scale would be advisable.

  0   1             32             64           127
off  ppp   pp   p   mp   mf   f       ff        fff

vvvvvvv = 64: in case of no velocity sensors
vvvvvvv = 0: Note Off, with velocity = 64
4. Any Note On message sent should be balanced by sending a Note Off message for that note in that channel at some later time.
5. ccccccc: control number

 ccccccc                Description
   0            Continuous Controller 0 MSB
   1            Continuous Controller 1 MSB (MODULATION BENDER)
   2            Continuous Controller 2 MSB
   3            Continuous Controller 3 MSB
   4-31 Continuous Controllers 4-31 MSB
  32            Continuous Controller 0 LSB
  33            Continuous Controller 1 LSB (MODULATION BENDER)
  34            Continuous Controller 2 LSB
  35            Continuous Controller 3 LSB
  36-63 Continuous Controllers 4-31 LSB
  64-95 Switches (On/Off)
  96-121        Undefined
 122-127        Reserved for Channel Mode messages (see Table III).

6. All controllers are specifically defined by agreement of the MIDI Manufacturers Association (MMA) and the Japan MIDI Standards Committee (JMSC). Manufacturers can request throught the MMA or JMSC that logical controllers be assigned to physical ones as necessary. The controller allocation table must be provided in the user's operation manual.
7. Continuous controllers are divided into Most Significant and Least Significant Bytes. If only seven bits of resolution are needed for any particular controllers, only the MSB is sent. It is not necessary to send the LSB. If more resolution is needed, then both are sent, first the MSB, then the LSB. If only the LSB has changed in value, the LSB may be sent without re-sending the MSB.
8. vvvvvvv: control value (MSB)
• for controllers

0: min
127: max
• for switches

0: off
127: on
Numbers 1 through 126, inclusive, are ignored.
9. Any messages (e.g. Note On), which are sent successively under the same status, can be sent without a Status byte until a different Status byte is needed.
10. Sensitivity of the pitch bender is selected in the receiver. Center position value (no pitch change) is 2000H, which would be transmitted EnH-00H-40H.