Viscount Chorum 10 Dlx Bedienungshandbuch Seite 53

Chorum 10 Dlx – Chorum S10 – Chorum 10
User Manual
CHANNEL MESSAGES
NOTE ON
This message is transmitted when a note is depressed on the keyboard. Each Note On message
contains the following information:
Note On: when a key has been struck;
Note Number: the key which has been pressed, and therefore the relative note played;
Velocity: note velocity (i.e. the force applied when the key was struck).
Note messages are expressed as a number from 0 to 127, with middle C represented by number 60.
NOTE OFF
This message is transmitted when a key struck previously is released.
When it is received, the sound of the note relating to the key is switched off. Each Note On
message contains the following information:
Note Off: a key has been released;
Note Number: which key has been released;
Velocity: velocity (i.e. how fast the note was released).
N.B.:
A Note On message with Velocity=0 is considered equivalent to a Note Off message.
PROGRAM CHANGE
This message is used to select the programs or sounds of the receiver instrument.
There is also a specific standard called General MIDI which describes which sound should be
recalled for each Program Change received. This association is usually described by means of a table
included in the user manual of the instrument which adopts the standard.
This message contains the following information:
Program Change: voice or program change;
Program Change Number: the number of the program or voice to be activated;
CONTROL CHANGE
These are control messages (often associated to trimmers or pedals) used to add expression to the
performance, allowing you to set (and control in real time if necessary) voice parameters such as
volume (CC n.7) or the position of the swell pedals (CC n.11), etc.
This message contains the following information:
Control Change: a controller has been adjusted
Controller Number: which controller has been adjusted
Controller Position: the position of the controller
SYSTEM MESSAGES
SYSTEM EXCLUSIVE
These messages can only be interpreted by an instrument made by the same producer as the
transmitter device (in some cases only by the same model). They mainly relate to the instrument's
sound generation and programming parameters. The organ uses these messages to control all the
internal parameters and for switching the voices on and off.
REAL TIME
These messages are used for the real-time control of specific modules or functions of a connected
instrument. These messages include the Start, Stop, Pause/Continue and Clock commands.
EN - 23