                           Glass Break 1.0
                          by  Nathan Sheldon
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    A patch for the Roland JV-1080, JV-2080, XP-50, XP-60 and XP-80.
=======================================================================

Overview:

A few weeks ago (today is Septermber 21, 1998), someone on the JV-1080
e-mail mailing list requested a breaking glass patch for their JV or XP.
 I thought I'd give it a try.  And this is my attempt at it.  It was
very difficult to create a sound even close to glass breaking as such a
sound is very unique and random in nature.  Though this patch is not a
perfect synthesis by any means, it does come somewhat close.  It sounds
like a small, thin glass breaking.  But the sound is very predicatable. 
In other words, all the keys sound just like all the other keys.  There
is no way to vary the sound of the patch such that the falling bits of
glass sound different.

Requirements:

None (other than a JV or XP synth).  No expansion boards are required.

Control:

There are no special controls, all keys make the same sound and no
controller makes changes in the timbre.

I use the wind chime waveform (as you might be able to tell from the
sound of the patch) for the breaking glass.  I make heavy use of the
high-pass filter to get just the very high frequencies (about 8000 Hz
and above).  I also make heavy use of the chaotic LFO waveform for "chop
up" the chimes sound making it sound more like falling pieces of glass
rather than a really small wind chime.  The affect is adequate, but
someone familiar with the Super JV synth (or just listening moderately
wwll) would notice that it is not glass breaking.  I use white noise
with a fast decay rate to add to the sound of the breaking glass and
help make it sound more full (the little tinny shards of class falling).
 And finally, I use an R8 Click for the sound of the "impact" that
breaks the glass.  The Reverb effect must be on for this to sound any
good.

Notes And Commnets:

Please feel free to comment on this patch.  You can use it freely
anywhere you wish and re-distribute it (along with this document)
anywhere.  It is, howver, Copyright 1998 by Nathan Sheldon.  :-)  If you
use it in any production that includes credits, please include my name
under synth programming.  I can be reached via e-mail at

nsheldon@geocities.com


Version History:

1.0  Initial release.
