MIDI implementation

Legato(controller number 68)

Status2nd byte3rd byte

--------------------------------------------------------------------

BnH

44H

xxH

Hold 2 (controller number 69)

Status

2nd byte

3rd byte

--------------------------------------------------------------------

BnH

45H

xxH

Sound Controllers 1--10 (controller numbers 70--79)

Status2nd byte3rd byte

--------------------------------------------------------------------

BnH

46 - 4FH

vvH

General Purpose Controllers 5--8 (controller numbers 80--83)

Status2nd byte3rd byte

--------------------------------------------------------------------

BnH

50 - 53FH

vvH

Portamento Control (controller number 84)

Status2nd byte3rd byte

--------------------------------------------------------------------

BnH

54H

vvH

Effect Depth 2-5 (controller number 92-95)

Status2nd byte3rd byte

---------------------------------------------------------------------

BnH5C - 5FHvvH

Program Change

Status2nd byte

-----------------------------------------

CnHppH

pp= program number

*These messages select channel A and channel B inputs, memory settings, and how the sub channel is mixed in Presentation mode. For details, refer to the section on Bank Select.

*If a non-selectable Program Change is received, it will be ignored.

Channel Pressure

Status2nd byte

-----------------------------------------

DnHvvH

*Just as for Control Change messages, you can make settings in MIDI Setup to use Channel Pressure messages to control a wide variety of things. For details on the factory settings, refer to “Settings Transmitted/Received Using MIDI” (p. 95).

Pitch Bend Change

Status2nd byte3rd byte

--------------------------------------------------------------------

EnH

llH

mmH

mm, ll= pitch bend value:00 00H - 40 00H - 7F 7FH (-8192 - 0 -+8191)

*Just as for Control Change messages, you can make settings in MIDI Setup to use Pitch Bend Change messages to control a wide variety of things. For details on the factory settings, refer to “Settings Transmitted/Received Using MIDI” (p. 95).

System realtime messages

Active Sensing

Status

-------

FEH

*Once an Active Sensing message is received, the system will begin monitoring the interval between all subsequent messages. If there is an interval of greater than approximately 400 ms between messages while monitoring is occurring, the system will perform reception error processing and will then stop monitoring the message interval.

Timing Clock

Status

-------

F8H

*Used to synchronize BPM SYNC.

Start

Status

-------

FAH

*Specifies the beginning of the beat for BPM SYNC.

Continue

Status

-------

FBH

*Specifies the beginning of the beat for BPM SYNC.

System exclusive messages

Status

Data bytes

Status

------------------------------------------------------------------

F0H

iiH, ddH,...,eeH

F7H

F0H: System Exclusive Message status

ii= ID number: An ID number (manufacturer ID) that indicates the manufacturer to which the exclusive message belongs. Roland’s manufacturer ID is 41H. ID numbers 7EH and 7FH are used for Universal Non-realtime Messages (7EH) and Universal Realtime Messages (7FH) to extend the MIDI specification.

dd, ... ee= data: 00H--7FH (0--127)

F7H: EOX (End Of Exclusive)

Data Set 1 (DT1)

This is the message that transfers actual data, and is used to specify data for a device.

Status

Data bytes

Status

----------------------------------------------------------------------------------------------

F0H

41H, dev, 00H, 5BH, 12H,

F7H

 

aaH, bbH, ccH, ddH,..eeH, sum

 

Byte

Explanation

 

-------------------------------------------------------------------------------------------------------------------------

F0H

Exclusive status

41H

ID number (Roland)

dev

Device ID (dev: 00H--1FH, factory setting is 00H)

00H

Upper byte of model ID (V-4, V-LINK message is 00H)

5BH

Lower byte of model ID (V-4, V-LINK message is 51H)

12H

Command ID (DT1)

aaH

Upper byte of address

bbH

Address

ccH

Address

ddH

Data: the actual data to be transmitted. Multi-byte data is transmitted

 

in the order of the address.

:

 

eeH

Data

sum

Checksum

F7H

EOX (End Of Exclusive)

*For details on setting the address, size, and checksum, refer to “Example of exclusive message and checksum calculation” (p. 95).

*Data that exceeds 256 bytes must be divided into packets of 256 bytes or less for transmission. If a subsequent “Data Set 1” message is transmitted, an interval of at least 20 ms must be left between packets.

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Edirol V-4 owner manual Midi implementation