Yamaha MU80 User Manual download pdf (Page 60)

XGedit95 User Manual Page 60

16.5 Other Useful Sysex Information

This section highlights some other useful sysex strings and sysex related facts you should be aware of.

16.5.1 Reset Messages

All XG synths will respond to the following three sysex messages:-

GM Reset - F0 7E 7F 09 01 F7

This sysex string forces the synth to resets all parameters to their General Midi defaults. Since XG is a

superset of GM, the string should be included at the head of all XG song files to ensure non XG synths can

at least make a reasonable attempt at playing the file.

XG Reset - F0 43 10 4C 00 00 7E,00 F7

This string forces the synth to switch to XG mode and reset all parameters to their XG defaults. The string

should be included in all XG files after the GM reset.

XG Reset All- F0 43 10 4C 00 00 7F 00 F7

This string forces the synth to switch to XG mode and reset all parameters to their XG defaults. In addition it

forces any synth system parameters to be reset to their factory defaults (this includes the SW60XG miser

and any User Performance memories). Since this string performs such a catastrophic reset it should only be

used where absolutely necessary and NEVER EMBEDDED IN A MIDI FILE.

GS Reset - F0 41 10 42 12 40 00 7F 00 41 F7

This string forces the synth to switch to TG300B mode and reset all parameters to their GS defaults (XG

synths TG300B mode is an emulation of the Roland GS format). The string should be included in all GS

files after the GM reset.

16.5.2 Sysex Timing

Sysex messages generally require more processing by the synth than standard midi controller and note

event messages. Consequently, inter message timing constraints must be applied to allow the synth time to

respond.

For simple single Parameter Change messages a period of one midi clock should be allowed between each

message.

For GM reset a period of 200ms should be allowed before subsequent messages are sent.

For XG and GS resets a period 50ms should be allowed before subsequent messages are sent.

If you do not allow these intervals between messages then you may find the synths midi buffer overruns

and/or the synth does not behave as expected.

If you use midi files saved from XGedit, the programme guarantees that all required Reset messages are

inserted to the head of the file and that all inter message timing is correct.

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Yamaha MU80 User Manual Page 60