Roland GI-20 owner manual Appendices Transmit Data, Channel Mode Message, System Realtime Message

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Chapter 5 Appendices

3. Transmit Data

The following are messages transmitted from the USB and MIDI connectors (when MIDI PLAYBACK is OFF).

When MIDI PLAYBACK is OFF, identical messages are transmitted by USB and MIDI. When MIDI PLAYBACK is ON, messages transmitted from the computer to the GI-20’s USB are sent through to MIDI OUT.

Refer to “Signal Flow” (p. 8).

■Channel Voice Messages

❍Note Off

Status

2nd byte

3rd byte

 

9nH

kkH

00H

 

n=MIDI channel number:

0H - FH (0 - 15)

0=ch.1 15=ch.16

kk= Note number:

 

00H - 7FH (0 - 127)

❍Note On

 

 

 

Status

2nd byte

3rd byte

 

9nH

kkH

vvH

 

n=MIDI channel number:

0H - FH (0 - 15)

0=ch.1 15=ch.16

kk= Note number :

 

00H - 7FH (0 - 127)

vv= Velocity:

 

01H - 7FH (1 - 127)

●Control Change

Control Changes (1–95) other than those for Bank Select, Data Entry, and general purpose controllers 3–8 received through the control channel, the channels are converted and messages are transmitted as shown below.

Control Changes assigned to the expression pedal, foot switch, and GK Volume are also transmitted over the channels shown below.

In MONO mode:

the six channels starting with the basic channel

In POLY mode:

only the basic channel

❍Bank Select

Status

2nd byte

3rd byte

BnH

00H

mmH

BnH

20H

llH

n=MIDI channel number:

0H - FH (0 - 15) 0=ch.1 15=ch.16

mm,ll= Bank number:

00 00H - 7F 7FH (bank 1 - bank 16384)

*Transmitted when the power to the GI-20 is turned on, when editing Bank Select, and when patches are switched.

*Not transmitted when the patch parameter’s Bank Select Switch is set to OFF or when the system parameter PC MASK is set to ON.

❍Data Entry

Status

2nd byte

3rd byte

BnH

06H

mmH

BnH

26H

llH

n=MIDI channel number:

0H - FH (0 - 15) 0=ch.1 15=ch.16

mm,ll=the value of the parameter specified by RPN

❍RPN MSB/LSB

Status

2nd byte

3rd byte

BnH

65H

mmH

BnH

64H

llH

n=MIDI channel number:

0H - FH (0 - 15) 0=ch.1 15=ch.16

mm=Upper byte of the parameter data designated by RPN ll=Lower byte of the parameter data designated by RPN

<<< RPN >>>

Control change includes RPN (registered parameter number), function which are defined by the MIDI standard. The GI-20 can transmit only RPN: pitch bend sensitivity (RPN#0) and channel fine tuning (RPN#1).

RPN

Data entry

 

MSB LSB

MSB LSB

Notes

00H 00H

mmH 00H

Pitch Bend Sensitivity

 

 

mm:00H - 18H (0 - 24 semitone)

 

 

LSB always transmits 00H.

 

 

* Transmitted when the power to the GI-20 is

 

 

turned on, when the BEND RANGE

 

 

parameters are edited, and when patch

 

 

changes are transmitted.

00H 01H

mmH llH

Channel Fine Tuning

 

 

mm,ll: 20 00H - 40 00H - 60 00H

 

 

(-4096 x 100 / 8192 - 0 - +4096 x 100 / 8192 cent)

 

 

* Transmitted when the power to the GI-20 is

 

 

turned on, when the basic pitch is edited, and

 

 

when patch changes are transmitted.

●Program Change

Status

2nd byte

 

CnH

ppH

 

n=MIDI channel number:

0H - FH (0 - 15) 0=ch.1 15=ch.16

pp= Program number:

00H - 7FH (0 - 127) 0=prg.1 127=prg.128

*Transmitted when the power to the GI-20 is turned on, when Program Changes are edited, and when patch changes are transmitted.

*Not transmitted when the patch parameter’s Program Change Switch is set to OFF or when the system parameter PC MASK is set to ON.

●Pitch Bend Change

Status

2nd byte

3rd byte

EnH

llH

mmH

n= MIDI channel number:

0H - FH (0 - 15) 0=ch.1 15=ch.16

mm,ll= Value:

 

00H, 00H - 7FH, 7FH (-8192 - +8191)

■Channel Mode Message

●Reset All Controller

Status

2nd bye

3rd byte

BnH

79H

00H

n = MIDI Channel number:

0H - FH (0 - 15) 0=ch.1 15=ch.16

*Transmitted when the MIDI PLAYBACK is switched, when the Bulk mode is selected, and when the parameter is edited.

■System Realtime Message

●Active Sensing

Status

FEH

*This message is always transmitted at about 250 msec intervals.

■System Exclusive Message

Status

Data byte

Status

F0H

iiH,ddH,.....,eeH

F7H

F0H:

System Exclusive

 

ii=ID number:

41H (65)

 

dd,...,ee=Data:

00H-7FH (0-127)

 

F7H:

EOX (End of Exclusive/System common)

*For more details, refer to the page “Roland exclusive message” and Section 4 or after.

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Contents Using the Unit Safely page 2-3 and Important Notes Main FeaturesPage For the U.K Placement Power SupplyMaintenance Additional PrecautionsContents Front Panel Rear Panel Signal Flow Items to Have On Hand Installing the Divided Pickup on the Guitar or BassAbout Midi Guitars That Cannot Be Used with the GK-2A/GK-2BPreparations to Make Before Performing Connection ExamplesSelecting the Guitar or Bass Adjusting the Input Sensitivity Turning On the PowerTurning Off the Power Playing Sounds from a Sound ModuleSelecting Patches What is a Patch?System Parameters and Patch Parameters System ParametersWhen Not Switching Patches How to Switch PatchesAbout the Display Patch ParametersSetting the Transmission Mode MONO/POLY Setting the Midi ChannelSetting the Midi Transmit Channel Basic CH When in Poly ModePress PATCH/VALUE to select the Basic channel number Setting the Control Channel CTL CHControl Change Press PATCH/VALUE to select the Control channel number Performing on the GuitarProgram Change Setting the Midi Port Connecting to a ComputerSetting the Midi Data Path Signal Paths That Can Be Selected WithSetting the Feeling of the Performance Play Feel Calling Up the Input Sensitivity SettingsSetting the Pedal and Switch Functions Assign Controller Function Functions That Can Be Selected With31, 64-95 Midi Control Change CC#1-31, CC#64-95 Pu Patch UpPt Patch Up/Down Pd Patch DownOu Octave Up Od Octave DownU5-u8 Glide Up 5-8/d5-d8 Glide Down U4 Glide Up 4/d4 Glide DownV1-V4 Vibrato B1 Pitch BendShifting the Pitch of the Sound Transpose Setting the Range in Which Pitches Are Changed Bend RangeSetting the Bend Range Settings That Can Be Selected WithSwitching Sounds on External Devices PRG Change Muting Specific Strings Storing the Settings WritePress Write Press PATCH/VALUE to select the save-destination patchPress PATCH/VALUE to select the copy-destination patch Confirm that the GI-20 is set to Play ModeCopying Patches Tuning Tuner Convenient Functions Featured by the GI-20Off Convenient Functions Featured by the GI-20Receiving Saved Data Using Midi Bulk Load Midi Receive Saved Data Through USB Bulk Load USB Turn the power offBend Data Thin Function Use a USB cable to connect the computer and the GI-20Limiting the Extent of the Bend Range Bend Range MAX Reducing the Amount of Control Change Data TransmittedReceive Control Change Data Thin Function Press PATCH/VALUE to select 12 orSelecting the Type of USB Driver Press PATCH/VALUE to select SP or GE Turn the power offInstalling the Rack Mount Adaptor Reset to Default Factory Settings Factory ResetTurn off the power to the GI-20 Attaching the Rubber FeetVolume fluctuates from one string to another TroubleshootingSound doesn’t vary when the settings are changed Pitch doesn’t change smoothlyIs Midi Bend Range the same for both sending and receiving? Problems occur after switching GI-20 patchesPitch is wrong out of tune with the guitar/bass Action Error MessagesReason Roland Exclusive Messages One-way Transfer ProcedureData Format for Exclusive Messages Address-mapped Data TransferData set 1 DT1 12H Channel Voice Messages Midi ImplementationSystem Exclusive Message Control ChangeSystem Realtime Message Channel Mode MessageAppendices Transmit Data Decimal and Hexadecimal table Appendices Exclusive CommunicationsData Set 1 DT1 12H Midi Implementation Chart GI-20 GK-MIDI Interface SpecificationsGI-20 ComputerWith the GI-20 disconnected, start up Windows Driver InstallationOpen the System Properties dialog box Click the Hardware tab, and then click Driver SigningSwitch on the GI-20’s power switch Installing & Setting Up the Driver WindowsPrepare the CD-ROM Connect the GI-20 to your computerIf What action do you want Windows to take? is set to Block If What action do you want Windows to take? is set to WarnClick Yes Click OKIf you changed What action do you want Windows to take? Next, you need to make the driver settings. pFig.d13 Make sure that File signature verification is set to IgnoreFig.d16 If File signature verification is set to Block Click Yes Continue the installationIf File signature verification is set to Warn Click the Hardware tab, and then click Driver signature Restart WindowsIf you changed File signature verification \Win98Me\Setupinf.exe SetupInf dialog box, click OK Windows XP SettingsOpen Control Panel Open the Multimedia Properties dialog box Windows 98 usersClick the Midi tab Set Midi outputUse either OMS or FreeMIDI as the Midi driver Installing the driverInstalling & Setting Up the Driver Macintosh Setting the driverVerify the Install Location, and click Install Click Restart to restart your MacintoshOMS Driver Search dialog box will appear. Click Search Create a New Studio setup dialog box will appear. Click OKAfter you have finished the above check, exit OMS Setup My Studio Setup Window, click the keyboard iconFig.d43 About Quick Setup dialog box will appear. Click ContinuePage Cannot install the driver correctly Problems related to the USB driverGI-20 is not detected when making OMS or FreeMIDI settings Find new hardware wizard does not execute automaticallyDeleting incorrect device information TroubleshootingDoes your computer meet the USB specifications? Deleting the driver Can’t install/delete/use the driver in Windows XP/2000Windows XP/2000 users Did you make Driver Signing Options?Macintosh users Windows Me/98 usersIndex Tuner String SEL IndexAvis Information

GI-20 specifications

The Roland GI-20 is a groundbreaking MIDI guitar converter that allows electric guitarists to explore the vast world of MIDI technology. Designed to bridge the gap between traditional guitar playing and digital music production, the GI-20 transforms standard guitar signals into MIDI data, giving players access to a wide array of synthesized sounds and virtual instruments.

One of the main features of the GI-20 is its ability to track the guitar’s pitch with high accuracy. Utilizing Roland’s advanced technology, the device boasts rapid response times and minimal latency, ensuring that every note plucked or strummed is translated into MIDI in real-time. This precision is crucial for guitarists who wish to maintain their playing style while experimenting with synthesizers and sampled instruments.

In terms of connectivity, the Roland GI-20 is equipped with a 13-pin connector, allowing it to interface seamlessly with compatible Roland synths, sound modules, and other MIDI devices. Additionally, standard MIDI outputs enable connection to MIDI controllers and computers, providing an expansive toolkit for music creation.

The user interface is designed with simplicity in mind. A large LCD display allows for easy navigation of settings, while intuitive controls help players adjust parameters on the fly. Guitarists can also customize their performance by altering the sensitivity levels, enabling them to fine-tune how the device responds to their playing style.

The GI-20 offers an array of built-in sounds that mirror the capabilities of traditional synthesizers. These sounds can be layered or split into different tones based on the player’s preferences, offering a variety of sonic textures to enhance compositions. Furthermore, the ability to save and recall user settings allows for quick access to preferred configurations during live performances.

Another significant characteristic of the GI-20 is its compatibility with a wide range of guitars, including both electric and bass guitars. As long as the instrument is equipped with the appropriate pickup system, the GI-20 can effectively convert its output into MIDI signals.

In summary, the Roland GI-20 is a versatile and innovative tool for guitarists seeking to expand their creative horizons. With its accurate tracking, extensive connectivity, user-friendly interface, and a wealth of sounds, it unlocks the potential for guitarists to dive into the realms of electronic music and MIDI composition. Whether in the studio or on stage, the GI-20 opens up a world of possibilities for musicians looking to blend traditional guitar playing with modern technology.
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