From mailserv@gaia.ucs.orst.edu Mon Jan  9 13:43:08 1995
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Date: Mon Jan  9 11:38:45 PST 1995
From: gus-music-request@gaia.ucs.orst.edu (GUS Musician's Server)
Reply-To: gus-music@gaia.ucs.orst.edu (GUS Musician's Digest)
Subject: GUS Musician's Digest V12 #6
GUS Musician's Digest       Mon, 9 Jan 95 11:38 PST      Volume 12: Issue   6 

Today's Topics:
                        GUS memory expansion?
                             homebrew...
                             the details

Standard Info:
	- Meta-info about the GUS can be found at the end of the Digest.
	- Before you ask a question, please READ THE FAQ.

----------------------------------------------------------------------

Date: Mon, 9 Jan 1995 07:19:32 -0500 (EST)
From: apervazo@sas.upenn.edu (Andrian Pervazov)
Subject: GUS memory expansion?

I saw a posting in one of the newsgroups (I think it was alt.music.midi) 
that Gravis is planning to provide for memory expansion of the GUS beyond 
the 1MB limit. Has anybody heard of it? Any info?

Also, where is the best place to buy the 16 bit daughterboard? What's the 
price?

And a question about patch editors. Is there a Patchmaker Heavy or 
whatever it's called - a full featured patch editor for the GUS. 
Patchmaker Lite is fine, but one really needs control over all the 
parameters (attack, envelope etc.) Which editor are you people using? I 
remember a small program called ped.exe - it was nice looking, but it was 
purely graphical so that one couldn't listen to the patch during editing. 
Another editor was patch.exe released by Gravis - the DOS program that 
was in the developer kit. However, I was never able to run it - on my 
computer after starting it I get the initial screen and nothing happens 
after that - I can move the mouse but clicking on the Load etc. buttons 
doesn't do anything and I can't even exit the program without rebooting. 
So, which program do you use for editing patches?

Andrian

-- 
Andrian Pervazov
Music Department, University of Pennsylvania  
Internet: apervazo@mail.sas.upenn.edu         Phone: 215-732-2053 
Postscript scores at ftp://ftp.gmd.de/music/scores/pervazov

------------------------------

Date: Sun, 8 Jan 1995 19:27:36 -0800 (PST)
From: Francois Dion <francois@hyperreal.com>
Subject: homebrew...

GUSPPG6.MP2 - Audio Mpeg (layer 2) of a Gravis Ultrasound emulating
              a PPG Wave like wavetable sweep.

In this short abstract, you'll hear one note sustained, with a volume and sweep
modulation using one potentiometer connected to the game port. Another
three can be connected to the game port, which could be used to modify the
attack and maybe a sub oscillator or something lke that, both relatively
easy to do. Or 2 joysticks, one for wavetable sweep/attack and one for
vector synthesis, the four buttons for grunge/loop direction and whatever
else...

For more details, check the file gusppg.txt in this directory also
(ftp://hyperreal.com/music/machines/emulations)

Ciao,
--
Francois Dion (IdMEDIA)                   [> Email: francois@hyperreal.com <]
    '                         [> C.P. 278, St-Lambert, QC, Canada, J4P 2N8 <]
        [> Raving Up North Ezine: run-request@hyperreal.com, subject: help <]

------------------------------

Date: Sun, 8 Jan 1995 19:28:48 -0800 (PST)
From: Francois Dion <francois@hyperreal.com>
Subject: the details

IT'S A BIRD, IT'S A PPG... NO, IT'S A GUS
 ----------------------------------------

Since i got a Gravis Ultrasound in 1992, my idea has been to use it as
a synth module. Now, i know that it's a wavetable synth (one couldlso
call it a sampler, but the industry has dubbed this type of architecture
as a wavetable synth) already and that is quite flexible. However, having
owned an EPS-16+ i found that the driver and hardware lacked a few
important features in term of "tweakability". One very neat feature was
the possibility to move the loop points with an lfo, for example. With
the proper sample, you could do some weird filter sweeps or radio noises.
Owning several synths with lots of knobs that you can tweak in realtime
(from the panel or from a programmer), i also wished for a driver that
could respond to controllers to modulate some parameters.

Well, as you will hear in the MP2 files, i've achieved both. Sweeps, drones,
sample and hold, distorted sounds, metallic sounds etc...

I am aware that some clicks are still present, but this is only version
0.1 alpha of the software. Abstraction made of the clicks (timing is
critical but they can all be removed), the program can recreate a lot
of PPG sounds, from drones to sweeps to bass (i emulated in a
convincing way some PPG Wave 2.2 sounds).

I've also done a program for FM emulation and another for LA emulation
both with mixed results. However i plan to combine all of these
programs together, and also to add some other things like some drum specific
modulators, programmable modulators etc.. For the PPG sounds i use 1 voice
per sound (2 with a sub oscillator), while FM can eat up to 6 voices, but
typical use will be at 2 voices. In all i am limited of course between 14
(bright) and 32 (warm) voices, but one could also use several GUS on
the same board, creating a monster synth. Oh, and vector synthesis would
require 4 voices per sounds (SY22, Wavestation etc...)

Are there people interested in working on this for fun?
Graphics will have to be designed
Interfaces tought of (sequencer?, arpegiator, sliders etc...)
Lots of programmation to be done
Manuals (to help design the interface and options) are needed for:
-Korg Wavedrum, Wavestation
-PPG Wave
-Waldorf Microwave
-Yamaha SY...
etc...
Thanks to Rob Talley for the Roland MT32 manual

So, if you are interested in doing something, drop me a line. If you had
already contacted me at my old address (dionf@ere.umontreal.ca) about
parts of this project (including the digital out), you'll have to
recontact me cause i lost a lot of email when i switched to hyperreal.

Ciao,
--
Francois Dion (IdMEDIA)                   [> Email: francois@hyperreal.com <]
    '                         [> C.P. 278, St-Lambert, QC, Canada, J4P 2N8 <]
        [> Raving Up North Ezine: run-request@hyperreal.com, subject: help <]

------------------------------

End of GUS Musician's Digest V12 #6
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