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Operations of Sound Generator
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| There are three kinds of command
to operate Sound Generator. They are Control Change,RPN and NRPN,and System
Exclusive Commands.Using these command makes the MIDI file more sophisicated. |
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Control Change
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| Control Change Commands are used
to change the settings of volume, modulation wheel , Pedals, and so on.
Control Change Commands contains operations of Synthesizer's switches,
and users can change these settings from MIDI. |
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RPN and NRPN
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| RPN and NRPN commands have
similer functions with Control Change Command, although they are newer.
RPN and NRPN enables changing tuning, changing music instruments, and so
on while the file is playing. RPN stands for Registerd Parameter Number
and NRPN stands for Non Registerd Number. RPN can be used with all Sound
Generator, while NRPN can be used with only specified maker's Sound Generator. |
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System Exclusive
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| System Exclusive includes
all commands that you can operate with your Sound Generator. In other words,
Control Change, RPN, NRPN are subsets of System Exclusive. However,
Control Change, RPN are common among all makers, so use these commands
and avoide using System Exclusive when it is avairable. |
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Difference between System Exclusive and NRPN
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| When you want to use the maker's
original functions, you use System Exclusive Commands. However, System
Exclusive Commands are intended to use for setting at the begining of the
tune, and it is not suited for real time setting and chanel setting. So,
NRPN are provided to change tones and chanel setting when the tune is played. |
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