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YamahaNotes.txt
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1995-07-22
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Just a few short notes to mention about the usage of these map files,
I have tested them with around 400 midi files and find that they tend to
produce quite good results. I have adjusted them quite a bit to get the right
sound from them, but a few points need to be made.
- The PSS-780 is only an FM-synth so does its best to manage with the demands
of heavy midi files. Its percussion is very good tho. (Even tho G-Midi doesnt
use much of it.)
- The PSS-780 & PSS-51 have one MAJOR probem tho. They have a non-standard pitch
bend range leading to unpredictable results when playing back Gmidi files with
lots of pitch bend. I suggest seeing what they sound like with and without
the pitchbend filter turned on and off within midiplay.
- The PSS-780 for some odd reason has two midi modes, this map file is designed
for MODE-99. As you may know after setting this mode the keyboards program
changes resort to 'Yamaha Standard Voice Numbers' (early attempt at a Gmidi
standard ??). This has the effect of making all the Program Change No's
vaguely random. I entered mine for the map file from the manual.. If you dont
have your manual anymore, I wouldnt suggest fiddling with the values in the
map file.(MODE-00 isnt multi-timbral.. try it if you like ;)
- The PSS-51 has some lovely sounds, but watch the polyphony.. check your manual
on page 46 there is a chart.. read it and take note. For this reason the
PSS-51 can become overloaded VERY quickly with Ch-Ful messages. If so, try
sending a few channels to another synth.
Although I have been unable to test it. The PSS-780 map files 'should' work on
the PSS-770, as the 780 was just a MODE-00 patch re-organisation, the Maps are
for MODE-99. They should also work on the PSS-790, but I am less sure of this.
Oh and if you are going to use midiplay with a Korg-X3, no map is needed, just
select the G-MIDI bank on the Synth, lock it into place, then start playing the
midi files..
Have Fun.
Ozzy.
(ajo1@ukc.ac.uk)