E-Mu PROTEUS FX Bedienungsanleitung PDF herunterladen (Seite 119)

7 - Synthesizer Basics

MIDI Program Change Commands

E-MU Systems 119

MIDI Program Change Commands

The Proteus VX receives MIDI Program Change commands on each of its 16 MIDI

channels. MIDI program changes select Proteus VX Presets. The “Receive Program

Changes” button must be turned on (depressed) in the Preferences dialog box in order

to receive program changes or bank select commands.

MIDI Bank Select Commands

The Proteus VX accepts MIDI bank select commands using MIDI continuous controller

numbers. Continuous Controller (CC) 0 is the MSB (most significant byte) and CC 32

is the LSB (least significant byte). Normally you send both the MSB and LSB controllers

to implement a bank change.

 Tip: Select “Show

Bank and Program

Numbers” in the toolbar

to view program and

bank numbers in the

preset list.

• Bank and Program

numbers are displayed in

Single Preset mode

screen.

Proteus VX remembers the MSB and the LSB that were last sent. For example, if you

have already set the Bank MSB to 04, you need only send the LSB to change banks

within the bank.

The selected bank remains selected until you change it (either via MIDI or by changing

the bank from the display). Standard MIDI Program Change commands select from

128 presets within the selected bank.

Background: Bank Select Commands

When the original MIDI specification was developed, no commercially available

synthesizer had more than about 100 preset locations. At that time being able to select

up to 128 presets didn’t seem like much of a limitation. So it was that the original MIDI

specification provided for the selection of up to 128 presets.

Musicians wanted more presets and so the MIDI specification was later amended to

include Bank Select Commands. It was decided that Bank Select Commands would use

Continuous Controllers 0 and 32 to allow the selection of up to 16,384 banks of 128

presets (over two million presets).

Because Bank Selects are implemented using Continuous Controllers, the Bank Selec-

tions can be made per channel. (This is getting better and better.) For each MIDI

channel, you can select any of 16,384 banks and then one of the 128 presets in the

bank. Of course no synthesizer has 16,384 banks (yet), but hey, it’s nice to know it’s

possible (for that really BIG project).

MIDI Modes

There are three MIDI modes used by the Proteus VX. Multi Mode is the default mode.

Select MIDI Modes from the toolbar buttons or from the Taskbar, Options menu.

 The general term for

“Preset” in MIDI-speak is

“Program”. Same thing.

• Omni ModeVoice messages are received on any and all MIDI channels and

played on the current channel. This mode is the lowest common denominator of

MIDI. It is designed so that you always hear something. Also called “Mode 1”.

• Poly ModeVoice messages are received only on one MIDI channel (the current

MIDI channel). Also called “Mode 3”.

• Multi ModeVoice messages on each MIDI channel play on the preset assigned

to that channel. The Proteus VX has the ability to play a different preset on each

of 16 MIDI channels.

The Current MIDI Channel can be identified by the yellow channel number in the

Multi page. Click on any channel number to make it the current channel.

Multi Poly Omni

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