Emu XL-7 & MP-7 User's Group

Hi, this is actually a basic problem with all synthesizers not just EMU's.  When
you turn your decay all the way up the note is still on until the entire note
and decay are done playing.  So when you are playing multiple notes each of them
takes up polyphony.  You only have 128 voices (or samples) you can play at once
total, and the guitar patch may actually use 1 to 4 samples, so if you have 16
notes of guitar per bar, and you have several seconds of decay per note, by the
end of the bar you might be using anywhere from 16 to 64 notes of polyphony,
after two bars depending on your tempo this could equal 128 voices.  If anything
else tried to play, there wouldn't be any room left to play.  Synthesizers use
"note stealing" to cut out the oldest notes first to make room for the new
sounds.  So the more tracks you have the more noticable this will be.
A guitar isn't usually played like this anyway, only a few notes are actually
left open at a time, they restart the decay when you strum, and the other notes
are being changed, so realistically you have many different decay times going on
at a time. You could make a copy of the patches and save them with different
decay times, and only use a few of the full decay ones at a time mixed with the
"strum" or note pick decays.

Hope this helps,
Andre

-----Original Message-----
From: drewaight1 [mailto:drewaight@...]
Sent: Sunday, April 20, 2003 5:22 PM
To: xl7@yahoogroups.com
Subject: [xl7] Another peculiar question


Here's a very odd Bug ive been having.
One of my patterns has a distorted guitar chord in it. I turned the
sustain and release knobs far to the right so that when I hit the key
it slowly fades away, (just like a rock guitar big strum). Sounds
great. However, after my pattern has been playing for sometime the
sustain and release on that preset randomly revert to being short,
ending the guitar hit where I let go of the key. It seems to be at
random, and it also seems to be worse when other tracks are playing,
I have tried erasing all controller messages and resaving the preset
with the sustain and release turned up but to no avail. If anyone has
encountered this problem, or more importantly the solution it would
be greatly appreciated. Thanks.



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