Roland DisCover 5 Manual

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Side 1/22

DisCover 5 MIDI Implementation

The DisCover 5 implements additional functionality and parameters over and above

previous Roland Instruments, which itself was an expansion of the GS sound generator

format. These functions and parameters are marked by a [DisCover 5] symbol. If MIDI

messages marked by a [DisCover 5] symbol are transmitted to another GS-format

sound generator, those messages may not be recognized.

• The Vocal Harmonizer parameters cannot be controlled via MIDI.

1. Receive data

■ Channel Voice Messages

● Note off

• For Drum Parts, these messages are received when Rx.NOTE OFF = ON for each

Instrument.

• The velocity values of Note Off messages are ignored.

● Note on

• Not received when Rx.NOTE MESSAGE = OFF. (Initial value is ON)

• For Drum Parts, these messages are not received when Rx.NOTE ON = OFF for

each Instrument.

● Polyphonic Key Pressure

• Not received when Rx.POLY PRESSURE (PAf) = OFF. (Initial value is ON)

• The resulting effect is determined by System Exclusive messages. With the initial

settings, there will be no effect.

● Control Change

• When Rx.CONTROL CHANGE = OFF, all control change messages except for

Channel Mode messages will be ignored.

• The value specified by a Control Change message will not be reset even by a Pro-

gram Change, etc.

❍

Bank Select (Controller number 0, 32)

• Not received when Rx.BANK SELECT = OFF.

• “Rx.BANK SELECT” is set to OFF by “GM1 System On,” and Bank Select messages

will be ignored.

• Rx.BANK SELECT is set to ON by “GM2 System On.”

• Rx.BANK SELECT is set to ON by power-on reset or by receiving “GS Reset.”

• When Rx.BANK SELECT LSB = OFF, Bank number LSB (llH) will be handled as 00H

regardless of the received value. However, when sending Bank Select messages,

you have to send both the MSB (mmH) and LSB (llH, the value should be 00H) to-

gether.

• Bank Select processing will be suspended until a Program Change message is re-

ceived.

• The GS format “Variation number” is the value of the Bank Select MSB (Controller

number 0) expressed in decimal.

• Some other GS devices do not recognize the Bank Select LSB (CC32).

❍

Modulation (Controller number 1)

• Not received when Rx.MODULATION = OFF (Initial value is ON)

• The resulting effect is determined by System Exclusive messages. With the initial

settings, this is Pitch Modulation Depth.

❍

Portamento Time (Controller number 5)

• This adjusts the rate of pitch change when Portamento is ON or when using the Por-

tamento Control. A value of 0 results in the fastest change.

❍

Data Entry (Controller number 6, 38)

❍

Volume (Controller number 7)

• Volume messages are used to adjust the volume balance of each Part.

• Not received when Rx.VOLUME = OFF. (Initial value is ON)

❍

Pan (Controller number 10)

• The stereo position can be adjusted over 127 steps.

• For Rhythm Parts, this is a relative adjustment of each Instrument’s pan setting.

• Not received when Rx.PANPOT = OFF. (Initial value is ON)

❍

Expression (Controller number 11)

• This adjusts the volume of a Part. It can be used independently from Volume mes-

sages. Expression messages are used for musical expression within a performance;

e.g., expression pedal movements, crescendo and decrescendo.

• Not received when Rx.EXPRESSION = OFF. (Initial value is ON)

❍

Hold 1 (Controller number 64)

• Not received when Rx.HOLD1 = OFF. (Initial value is ON)

❍

Portamento (Controller number 65)

• Not received when Rx.PORTAMENTO = OFF. (Initial value is ON)

❍

Sostenuto (Controller number 66)

• Not received when Rx.SOSTENUTO = OFF. (Initial value is ON)

❍

Soft (Controller number 67)

• Not received when Rx.SOFT = OFF. (Initial value is ON)

❍

Filter Resonance (Timbre/Harmonic Intensity) (Controller number 71) [DisCover 5]

Status 2nd byte 3rd byte

8nH kkH vvH

9nH kkH 00H