Midi Data Format - Yamaha 007POTO-G0 Owner's Manual

MIDI Data Format

This section explains the format of the data that the LS9 is able to understand, send, and receive.
1 CHANNEL MESSAGE
1.1 NOTE OFF
Reception
These messages are echoed to MIDI OUT if [OTHER COMMAND ECHO] is
ON.
They are received if [Rx CH] matches, and used to control effects.
STATUS 1000nnnn 8n
DATA 0nnnnnnn nn
0vvvvvvv vv
1.2 NOTE ON
Reception
These messages are echoed to MIDI OUT if [OTHER COMMAND ECHO] is
ON.
They are received if [Rx CH] matches, and used to control effects.
STATUS 1001nnnn 9n
DATA 0nnnnnnn nn
0vvvvvvv vv
1.3 CONTROL CHANGE
Two types of CONTROL CHANGE can be transmitted and received; [NRPN]
(Non-Registered Parameter Numbers) and freely-assigned [TABLE] (1CH x
110) messages. Select either [TABLE] or [NRPN].
Reception
These messages are echoed to MIDI OUT if [CONTROL CHANGE ECHO] is
ON.
If [TABLE] is selected, these messages are received when [CONTROL CHANGE
Rx] is ON and [Rx CH] matches, and will control parameters according to the
settings of the [CONTROL CHANGE EVENT LIST]. For the parameters that
can be assigned, refer to "Parameters that can be assigned to control changes" on
page 249.
If [NRPN] is selected, these messages are received when [CONTROL CHANGE
Rx] is ON and the [Rx CH] matches; the four messages NRPN control number
(62h, 63h) and DATA ENTRY control number (06h, 26h) are used to control the
specified parameter.
Transmission
If [TABLE] is selected, and if [CONTROL CHANGE Tx] is ON when you
operate a parameter that is assigned in the [CONTROL CHANGE EVENT
LIST], these messages will be transmitted on the [Tx CH] channel. For the
parameters that can be assigned, refer to "Parameters that can be assigned to
control changes" on page 249.
If [NRPN] is selected, and if [CONTROL CHANGE Tx] is ON when you
operate a specified parameter, the four messages NRPN control number (62h,
63h) and DATA ENTRY control number (06h, 26h) are transmitted on the [Tx
CH] channel. For the parameters that can be assigned, refer to "Parameters that
can be assigned to control changes" on page 249.
CONTROL CHANGE messages are not used for transmission to LS9 Editor
because there is no guarantee that the contents of the assignment tables will
match. (PARAMETER CHANGE messages are always used.)
CONTROL CHANGE numbers 0 and 32 are for selecting banks.
STATUS 1011nnnn Bn
DATA
0vvvvvvv vv
STATUS 1011nnnn Bn
DATA
0vvvvvvv vv
If [TABLE] is selected
STATUS 1011nnnn Bn
DATA 0nnnnnnn nn
0vvvvvvv vv
* Numbers 0, 32, and 96–101 cannot be used.
* Control number 6, 38 can be used.
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LS9-16/32 Owner's Manual
MIDI Data Format
(8n)
Note off message
Note number
Velocity(ignored)
(9n)
Note on message
Note number
Velocity (1-127:on, 0:off)
(Bn)
Control change
Control number (00)
00
Control Value (0-127)
Control change
Control number (32)
20
Control Value (0-127)
Control change
Control number (1-5, 7-31, 33-37, 38-95,
102-119) *
Control Value (0-127)
Equation for converting a Control Value to parameter data
paramSteps = paramMax–paramMin + 1;
add = paramWidth / paramSteps;
mod = paramWidth–add * paramSteps;
curValue = paramSteps * add + mod / 2;
(1) If the assigned parameter has fewer than 128 steps
paramWidth = 128; rxValue = Control value;
(2) If the assigned parameter has 128 or more but less than
16,384 steps
paramWidth = 16384;
(2-1) When High and Low data is received
rxValue = Control value(High) * 128 + Control value(Low);
(2-2) When only Low data is received
rxValue = (curValue & 16256) + Control value(Low);
(2-3) When only High data is received
rxValue = Control value(High) * 128 + (curValue & 127);
(3) If the assigned parameter has 16,384 or more but less than
2,097,152 steps
paramWidth = 2097152;
(3-1) When High, Middle, and Low data is received
rxValue = Control value(High) * 16384 + Control value(Middle) * 128 + Control
value(Low);
(3-2) When only Low data is received
rxValue = (curValue & 2097024) + Control value(Low);
(3-3) When only Middle data is received
rxValue = (curValue & 2080895) + Control value(Middle) * 128;
(3-4) When only High data is received
rxValue = (curValue & 16383) + Control value(High) * 16384;
(3-5) When only Middle and Low data is received
rxValue = (curValue & 2080768) + Control value(Middle) * 128 + Control
value(Low);
(3-6) When only High and Low data is received
rxValue = (curValue & 16256) + Control value(High) * 16384 + Control value(Low);
(3-7) When only High and Middle data is received
rxValue = (curValue & 127) + Control value(High) * 16384 + Control value(Middle)
* 128;
if ( rxValue > paramWidth)
rxValue = paramWidth;
param = ( rxValue–mod / 2) / add;
If [NRPN] is selected
Control change
STATUS 1011nnnn Bn
NRPN LSB
DATA 01100010 62
Parameter number LSB
0vvvvvvv vv
Control change *
STATUS 1011nnnn Bn
NRPN MSB
DATA 01100011 63
Parameter number MSB
0vvvvvvv vv
Control change *
STATUS 1011nnnn Bn
Data entry MSB
DATA 00000110 06
Parameter data MSB
0vvvvvvv vv
Control change *
STATUS 1011nnnn Bn
Data entry LSB
DATA 00100110 26
Parameter data LSB
0vvvvvvv vv
* The STATUS byte of the second and subsequent messages need not
be added during transmission. Reception must occur correctly
whether or not the status byte is omitted.