I think the short note duration ticket should be fixed before 1.1.0 is
released (I seem to remember David suggesting this too?). I just
found a PDF file called GM Guidelines Version 2.
http://www.midi.org/techspecs/gmguide2.pdf
On page 20, there is a section on response to Note-off on Channel 10.
It specifically mentions that GM percussion instruments should ignore
note-off events. The exceptions being long Whistle and long Guiro.
So that probably answers why there are MIDI files floating out there
with very short duration percussion note events. I think this also
applies to GS.
Now the question becomes, what is the best way for FluidSynth to
handle this? It would be nice to have a MIDI mode setting, which
would respond to SYSEX messages which enable/disable GM and GS. I'm
not sure if we should try and tackle that by 1.1.0 though. I'm not
sure if every GM/GS file has the proper SYSEX messages either,
although we could let the mode be specified manually.
Perhaps something like this would be adequate:
midi.mode = raw, gm, no-off-percuss
raw: Don't do any special percussion channel handling
gm: Ignore note-offs for all but fast Whistle and Guiro on percussion channel
no-off-percuss: Ignore all note-offs on percussion channel
Any better ideas or suggestions?
Josh
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