Behringer MIDI FOOT CONTROLLER FCB1010 Manual do Utilizador descarregar pdf (Página 17)

MIDI FOOT CONTROLLER FCB1010

+ The FCB1010 has no dedicated MIDI THRU port. However, the data received at the MIDI IN can

be routed to the MIDI OUT provided that the MERGE function is enabled.

MIDI OUT: The MIDI OUT allows you to transmit data to any MIDI-compatible device/instrument.

4.2 MIDI data format

Although the FCB1010 is very easy to operate, it does make sense to know a few things about the format of

MIDI data. Each MIDI command or message consists of up to three bytes (1 byte = 8 bits). Theres a difference

between status bytes and data bytes: status bytes define the type of a specific MIDI message, i.e. the actual

instruction to be sent to a device, while data bytes contain the information or parameters defined by the

corresponding status byte. One status byte can be followed by up to two data bytes.

There are various types of MIDI messages. Since the FCB1010 does not understand or transmit all of them, we

will only deal with those that are of importance to you in this context.

4.2.1 NOTE ON and NOTE OFF messages

NOTE ON and NOTE OFF messages are essential MIDI messages for any keyboard virtuoso, as they allow to

control remote instruments from one master keyboard or computer. The FCB1010, too, can send NOTE ON

messages, however, in a different context: many effects devices allow for tapping delay times, etc., by

measuring the time interval between two NOTE ON messages. With the FCB1010 you can tap delay times or

song tempos by selecting a NOTE PRESET twice.

NOTE ON and NOTE OFF messages feature the following data format:

Status Byte Data Byte #1 Data Byte #2

Note Off &8n (n=channel #) Note # Velocity

Note On &9n (n=channel #) Note # Velocity

The channel number range is 1 through 16, the data byte range is 0 through 127. It should be noted though that

NOTE OFF messages are not so common today (for reasons of data reduction, cf. Running Status). Usually,

NOTE ON messages with zero velocity are transmitted instead. The FCB1010 follows this convention. By the

way: when you program the NOTE function on your FCB1010 you only need to enter the note number, because

notes are always transmitted with a velocity of 64.

4.2.2 CONTROL CHANGE messages

CONTROL CHANGE messages are the most powerful MIDI messages, as they allow you to select and

automate plenty of parameters and functions. On your FCB1010 you can define and transmit CONTROL

CHANGE messages, e.g. to change specific effects parameters in real time. The most important CONTROL

CHANGE messages are:

Controller # Function

07 Controls the overall volume of instruments on one MIDI channel

08 Balance

10 Pan

91 Reverb intensity

4.2.3 PROGRAM CHANGE messages

PROGRAM CHANGE messages are used to change presets or sounds in connected devices/instruments.

The parameter range is 0 through 127. Almost all devices have a list enclosed which shows the program

change number versus preset number assignment. Some units even allow you to freely assign program change

commands to preset numbers. Please see the corresponding users manual for detailed information.

4. MIDI  A STANDARD, A REVOLUTION

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