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What is Reset Command?
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| Most Sound Generator
Makers support two standards, GM and its original standard. For example
Yamaha supports XG and GM, while Roland supports GS and GM. When you use
a Sound Generator, you have to notify which standard is intended to use.
And Reset Command is used to do this. |
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When is it used?
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Reset Command
specifies which standard is intended to use. Although Sound Generator processes
each datum that is comming from PC, it does not know when the tune was
started and when the tune will be ended.It simpley process commands from
PC. For example, if it receives a command that says "play the note of 'C'",
it generates the sound of 'C', or if it receives a command that says "change
the music instruemnt", it changes the music instrument. Therefore after
receiving GM Reset Command or GS Reset Command, it operates that mode until
it receives another Reset Command.
If it is the background music
of homepage, if it does not contain a Reset Command, that music is played
with the mode that was used by the prior midi file. It maintains settings
of Reverb, Chorus, and Music Instruments, so, there may be a problem. To
avoid the problem, a Reset Command is necessary at the begining of every
tune. |
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Standard and Reset Command
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GM
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F0 7E 7F 09 01 F7 |
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GS
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F0 41 10 42 12 40 00 7F 00 41 F7 |
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XG
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F0 43 10 4C 00 00 7E 00 F7 |
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How to Input
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| Some sequence software
have a list window that makes selecting these commands easy. Some sequence
software do not require F0 because it puts F0 automatically. When the Sound
Generator receives a Reset Command, it begins initialize process, and this
process takes a time. Therefore a blank major is needed after the Reset
Command before the first note is put. |
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