Part II
Channel Message
Instrument Velocity Resolution The upper seven bits of the 14-bit resolution correspond to the
Note On/Off message, while the lower seven bits correspond to the High Resolution Velocity Prefix
message.
Note On/Off High Resolution Velocity Prefix
Upper 7 bits
Lower 7 bits
14bits
The initial default value for the lower 7 bits is 00H. Receipt of a High Resolution Prefix message
causes the lower seven bits to be set, but note on is not p erformed.
Receipt of a Note On message causes the upper seven bits to be set with note on performed with
14-bit resolution Velocity.
The High Resolution Velocity Prefix message corresponds the message immediately following the
Note On/Off message, and the lower seven bits are cleared to 00H immediately following note on by the
Note On/Off message. 7-bit resolution note on using only the Note On/Off message also continues to be
supported.
For details about each message, see ”5 Note Off”, ”6 Note On” and ”7.20 High Resolution Velocity
Prefix”.
5 Note Off
Format
Message Format: 8nH kkH vvH
9nH kkH 00H(receive only)
n: MIDI Channel Number
kk: Key Number
vv: Velocity
Transmit Sent when something is played on the keyboard. The key number changes in accordance
with on the Transpose function and Octave Shift function.
Receive Receipt stops a note being sounded by a note on message.
When a High Resolution Velocity Prefix message is received immediately prior to the Note Off message
and the lower seven bits of the 14-bit Velocity are set, the 14-bit resolution note off is performed.
For information about the relationship between the Note Off message and High Resolution Velocity
Prefix message, see ”Instrument Velocity Resolution” at the beginning of part II.
6 Note On
6
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