GUS Daily Digest            Mon, 25 Oct 93  0:07 MDT     Volume 7: Issue  24  

Today's Topics:
						 Gus, SB and Windows
				   GUS Daily Digest V7 #23 (2 msgs)
					 GUS headphone volume control
						   Halloween Harry
				   Line level ground loop isolator
							 new uploads
						  Prince of Persia 2
							 RAM for gus?
							Tiger Software
						   Ultramid and UW2
					  Using to mono microphones
						volume in 2nd reality

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.

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Date: Sun, 24 Oct 1993 12:55:44 +0100 (MET)
From: ralam@cs.vu.nl
Subject: Gus, SB and Windows

Hi, I have a Gus and a Soundblaster peacefully coexisting in my 
computer, and under DOS everything works fine.
But I can't seem to get My GUS installed under Windows. 
Windows gives me a conflict between my two cards

Does anyone know how to solve this ?

Thanx

Remco Lam
-- 
 -----------------------------------------------------------------
   _____    
  /     \    |      |    { Remco Lam 
 |           |      |    {
 |           |      |    { login  : ralam
 |           |      |    { 
  \_____/     \____/|    { e-mail : ralam@cs.vu.nl
 -----------------------------------------------------------------

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

Date: Sun, 24 Oct 1993 18:43:50 -0400 (EDT)
From: dionf@ERE.UMontreal.CA (Francois Dion)
Subject: Re: GUS Daily Digest V7 #23

> From: adriano ennio raiola <adrianr@mullian.ee.mu.OZ.AU>
> Subject: ADPCM decode executable??
> 
> Hi, can someone PLEASE upload compiled versions of the source files in the
> adpcmsrc.zip archive just uploaded to epas, so that those of us without
> a C compiler can try the adpcm compressed samples..

It is included with the compressed samples. It is called testd_s.exe.
BTW the daughterboard will be able to do this in hardware, and Tom Klok has
modified the code to make it fast enough to do real time compression/
decompression.

> ------------------------------
> From: Steve "Bongos" Larson <larson@ee.ualberta.ca>
> Subject: Creating a headphone/speaker volume control for your GUS
> 
> Howdy GUSland.
> 
> I thought I'd pass on some advice...
[making a headphone/speaker control]

And for people who are scared of their soldering abilities, Radio Shack sells
a headphone volume control which will do the trick and cost less than 5$.

> ------------------------------
> From: FINK_MARTIN/HP2000_13@idacom.hp.com
> Subject: Re: Microphones and the GUS
> 
> In response to Ben Leamy's question about
> microphones.....
> 
> I tried several microphone borrowed from friends,
> and none of them worked.

Probably all condenser mike without internal power, right? You need either a
dynamic microphone or a self powered condenser mike. For a circuit on how to
use condenser that are not self powered, check micro.arj on epas. It includes
a design for a Macintosh microphone, a Radio Shack electret (which needs -8v
but some require +8v so you have to reverse the battery on the circuit) and
both work great. I also use PZM mikes with this circuit instead of the poor
power circuit that come with the PZMs (and scrap the 10Kohm transfo which is
not needed).

> Since the microphones I
> had borrowed were all mono, and the mic input on
> the GUS is stereo,

Doesn't matter. By using a mono mic on the GUS you simply put to ground one
input which will not damage the GUS.

> I tried using a mono to stereo
> converter....to no avail.

With or without it works perfectly.

> I then went to Radio
> Shack and purchased a real stereo microphone.  It
> actualy has two heads on it.  It worked great.  Just
> make sure that it meets your uni or omni directional
> needs.

Because it's a dynamic microphone. The pickups look like headphone speakers.

> One word of warning.  The GUS Windows drivers incorrectly
> report that the GUS is unable to do stereo recording.

Not. I've sent you 2 messages already about that. It correctly reports stereo
recording capabilities at 8 bit. Works for 11025, 22050 and 44100 Hz.

> Therefore, if you want to record in stereo in Windows
> using the mic, use the Goldwave recorder on epas, it
> ignores the driver report and instead depends on the
> enumeration values reported by the driver.

All software that supports stereo recording in windows does work in stereo.
Not just Goldwave, but Wave, Cooled etc...

> Gravis has been advised of this 'bug' many times, but for
> some reason have refused to acknowledge it.

Well maybe you do not check your email? There is no such bug (unless you have
a very old version of the driver - what is the date of the grvsultr.386 and
ultrasnd.drv?)

> ------------------------------
> From: Steve "Bongos" Larson <larson@ee.ualberta.ca>
> Subject: stuff...
> 
> "Any friend of GUS is a friend of mine..."
> Ben "the Bastard" says:
> # I still haven't tried to sample on my card (using a mic) since I 
> # tried it with the little microphone that came with a friends PAS16 
> # compatiable.  It didn't work with that put I have successfully 

It is probably a condenser microphone that needs power to work properly.

> # sampled using the LINE IN and a personal stereo.
> # should the PAS type mic have worked on the GUS?
> ==> Yes if the mic was stereo (check the plug: 3 conductors)
> ==> No if the mic is mono (2 conductor)

You can use a mono mic succesfully:

	  stereo mono

	   |  |  |  |
	   ----  ----
		||    || <--- ground
		--    ||
		||    || <--- left input
		--    --
		\/    \/ <--- right input

With a mono microphone, the left input will be grounded (no problem) and the
right input will get the signal from the microphone. Since the right channel
is what is sampled when you select mono, it works great.
Note that this is ok because it is an input stage. For output stages (line or
amplified) never use a mono jack in a stereo output jack.

> # is there some specific type of mic that I should try? (dynamic etc)
> ==> I use a dynamic mic. They usually have flatter and better frequency
>     response.

Depends. PZM have far better frequency response than any dynamic microphone
under 500$ and cost 50$. PZM are condenser mike that can accept up to -15volts
and can easily be modified for balanced XLR or jack use.

> # what impedence should I try to get?
> ==> This shouldn't matter much; most mic's o/p in the mV range, and are
>     designed for mic-level input.

There are 2 ranges: 600 ohm and 10Kohm. 600 ohm is what you want on the GUS.
I have used succesfully all dynamic microphones that i had: Shure, Grundig,
Senheiser and even a cheapie radio shack and a cheapie lloyds. I also have
used with my circuit in micro.arj Macintosh microphones, PZM mikes (work
directly too without modification), electret capsules. I have also tried
a self powered condenser microphone. All worked, but the 10Kohm didn't give
a very strong signal, but still, worked.

Note to all: music questions (that includes modifying the GUS for XLR inputs,
how to get microphones working, speakers, composition software etc...) should
go to the gus-music list. I am still subscribed to this list, but in a very
short time i wont be anymore. Most other hardware hackers are only on the
music and sdk list so you wont get much technical answers anymore...

Ciao,
-- 
Francois Dion
	'  _   _   _ 
 CISM (_) (_)  _) FM       Montreal , Canada       Email: CISM@ERE.UMontreal.CA
	  (_)  / . _)             10000 Watts          Telephone no: (514) 343-7511
_______________________________________________________________________________
Audio-C-DJ-Fractals-Future-Label-Multimedia-Music-Radio-Rave-Video-VR-Volvo-...

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

Date: 24-OCT-1993 23:46:10.29
From: Richard Wyckoff <RWYCKOFF@EAGLE.WESLEYAN.EDU>
Subject: Re: GUS Daily Digest V7 #23

n4zfd!frodo@rylos.n2idf.ampr.org ("James M. Blakely") writes:

> Someone mentioned that "it was nice to see the GUS in a mainstream catalog" 
> and told about how the GUS was advertised in Tiger Software's catalog.

> This is *not* a good thing. Tiger Software is generally the last stop for a 
> product before it's pulled from the market -- their line is made up 
> primarily of closeouts and discontinued items.

	I used to think this...until I looked in the newest Tiger catalog.
Unless the new triple speed NEC CD-ROMS are also being remaindered (funny,
I didn't even know they existed till I looked at that catalog) it seems that
Tiger has moved from the DAK catalog arena to that of Micro Warehouse.  I
also saw the PAS and Turtle Beach cards in there too, I think.  Don't worry
about the GUS! 
--                                             
RWYCKOFF                      /Richard Wyckoff\                      CATULLUS
@EAGLE.WESLEYAN.EDU          /   aka Catullus  \    @PELICAN.CON.WESLEYAN.EDU
			 "Sage of the Labyrinth, Knight of the High Odiamor"
						   /- Robert Anton Wilson\

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

Date: Sun, 24 Oct 1993 15:28:53 -0500 (CDT)
From: "James F. Kane III" <jfk2@engr.uark.edu>
Subject: GUS headphone volume control

For the solder-uninclined (like myself), Radio Shack sells a nifty little 
inline volume control for around $5US.  I've been using mine for some 
time now, with no problems.

Jim
jfk2@engr.engr.uark.edu
"I haven't slept since I woke up."

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

Date: Sun, 24 Oct 1993 07:23:33 -0600 (CST)
From: E33GLASSER@sask.usask.ca
Subject: Halloween Harry

I got Halloween Harry to work not bad using SBOS 1.43.  It is 
reasonably playable, with music a bit scratchy.  SBOS 1.37 worked
OK but not quite as well.  SBOS 3.60 worked but was extremely
fuzzy and jerky.  I could not try it with 1.20, as I do not seem
to have it anymore.  Could somebody upload it to epas?
 
It seems like a pretty good game.  Might be worth registering
if it supported the GUS properly...
 
Neil Danylczuk

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

Date: Sun, 24 Oct 93 16:55:12 CDT
From: cowles@hydra.convex.com (John Cowles)
Subject: Re: Line level ground loop isolator

Steve Larson writes:
>   One other tip: I recommend the use of a line-level ground loop
>   isolator when connecting line-out to your sound system. It cleans up
>   most hum and motherboard noise you might otherwise experience.

Where can I find one (or several) of these beasts, or how can I make my own?
I'm not an EE major, but I own a soldering iron.

	 John Cowles        cowles@hydra.convex.com   CompuServe: 72074,451
						Convex Computer Corp.  214 497 4375
						3000 Waterview Pkwy
						Richardson, Tx. 75080

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

Date: Sun, 24 Oct 1993 07:26:25 -0600 (CST)
From: E33GLASSER@sask.usask.ca
Subject: new uploads

I uploaded a demo of the Terminator Rampage game to epas called
RAMDEM.ZIP.  It is from the Gravis BBS.
 
I also uploaded a 3D sound demo from Europe called GUS3DEMO.ZIP.
 
Neil Danylczuk
 

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

Date: Sun, 24 Oct 1993 07:25:14 -0600 (CST)
From: E33GLASSER@sask.usask.ca
Subject: Prince of Persia 2

Ok, I have tried almost every conceivable setup.  I still get 
random lockups.  What setups have been successful for others?
By the way SBOS 3.60 definitely sounds the best for this game,
but it is not stable.
  
Neil Danylczuk
 

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

Date: Sun, 24 Oct 93 15:54:06 -0400
From: sylk@mik.uky.edu
Subject: RAM for gus?

Hello!
  What is the specification for the GUS ram?  I know I need 80ns Drams,  
but are they - 256X4, 256X1, or what?

   Thanks!

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

Date: Sun, 24 Oct 93 10:05:27 EDT
From: Meshreki@ee.udel.edu
Subject: Re: Tiger Software

>Someone mentioned that "it was nice to see the GUS in a mainstream catalog" 
>and told about how the GUS was advertised in Tiger Software's catalog.
>
>This is *not* a good thing. Tiger Software is generally the last stop for a 
>product before it's pulled from the market -- their line is made up 
>primarily of closeouts and discontinued items.

Actually, while this was probably true a year ago, Tiger seems to have
shifted gears into carrying product lines now.  There are several pages
for each of the following companies dedicated to brand new hardware/software:
NEC (the new 3x triple speed CD ROMS + entire line of computers), 
IBM (hardware + OS/2, PC DOS 6.1), Sony (sampling of non-computer stuff),
Logitech (scanners, mice, soundcards), Lotus (software), and tons of 
multimedia hardware/software/CDROMs.  This is from the latest catalog, 
Fall 1993.  Check the prices -- it's definitely not closeouts anymore.

Can't wait until Gravis has their own page with the Max + daughter boards! :-)

Sam

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

Date: Sun, 24 Oct 1993 23:41:45 -0400
From: Christine H Venart <venart@cse.psu.edu>
Subject: Ultramid and UW2

Hello all!

Quick question:

After messing around with Ultramid with several games, I decided
to try it with UW2.  The intro never sounded better!

So...with my new sound, I decided to actually start playing this
game with the intent to solve it.  Unfortunately, I noticed that
although all of the sound works great, everytime a digitized sound
gets "sounded" my character turns a little to the left.

I messed around with the sounds and found that the music for the
game has no effects on it.  When I turn the sound off and leave the
music going, things are fine.

Any ideas?

Thanks alot!
MCI

Happy Gus-ing!

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

Date: Sun, 24 Oct 1993 16:50:03 +0800 (WST)
From: Adam Boyt <aboyt@tartarus.uwa.edu.au>
Subject: Using to mono microphones

I have two mono mics which I would like to hook together for stereo 
sampling.  I've tried to do this and for some reason it does not work (I 
tested the connections on my home brew adaptor and they were OK) - what 
gives?.  Also, what is the situation with MegaEM and Gravis, I don't want 
to register if a gravis version is about to come out?  Lastly, does 
anyone know how to get the miles/dgipak drivers to work with Warlords II 
- for some reason they wont work - could it be because their drivers are 
labelled 1991,92?

Adam (Ferrous) Boyt (aboyt@tartarus.uwa.edu.au)

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

Date: Sun, 24 Oct 1993 05:11:12 -0500 (CDT)
From: Antonio Guia <guia@CC.UManitoba.CA>
Subject: volume in 2nd reality

i'm not sure that i made myself understood...    the sound through an
amplifier connected to the line-out of the gus sounds quite good, but i
wanted to check if the 3d sound was different using headphones.  I plugged
in some headphones which have a volume control built-in to the line, and
ran 2nd reality.  The volume of the output from the amp-out line is quite
high and results in clipping of the sound.  It does not matter where i put
the volume control of the headphones, the source of the clipping is coming
from the card's amp-out line, and not from the headphones

again, is there any way to turn down the volume of the amp-out line via
software?

and thanks for that last reply, it was interesting and should be quite
useful for anyone not having a volume control on their headphones, that's
one that should be incorporated into the FAQ

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

End of GUS Daily Digest V7 #24
******************************
