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1994-03-04
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Apparently-To: john.smith@gravis.com
GUS Programmer's Digest Thu, 3 Mar 94 19:34 PST Volume 9: Issue 20
Today's Topics:
Again..
D/A converter
DIGEST ADMIN: GETTING HELP
GUS Programmer's Digest V9 #19 (2 msgs)
GUS summary volume
It's only Ultramid
MIDPAK and DIGPAK
Moving mailing time...
subscribe
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: Wed, 2 Mar 1994 16:24:09 +0800 (PST)
From: Francis Li <fli@nermal.santarosa.edu>
Subject: Again..
In case it was missed the first posting: Does anyone have the
Tremolo/Vibrato frequency/rate/etc tables that were SUPPOSED to be in the
SDK? Are they on an ftp site?
And how do you take the values for tremolo in the wave patch headers and
use them in playback? How do you convert 6hz, 8dB into whatever rate they
use in the ramp functions? I have been trying to use
UltraRampLinearVolume, but I don't know how to convert the dB amount into
linear volume. And does 6hz go right into the procedure as 6? The SDK
doesn't specify what the rate is-hz? khz? per sec? per millisec? Sorry if
these questions seem stupid to you but I don't know my sound physical
characteristics too well (first time programming sound)...
------------------------------
Date: Thu, 3 Mar 1994 15:39:03 -0500 (EST)
From: dionf@ere.umontreal.ca (Francois Dion)
Subject: Re: D/A converter
> From: "VISX80::GRECNER" <GRECNER%VISX80.decnet@musx53.zfe.siemens.de>
> Subject: GUS D/A converter
>
> Does anyone know how many bits does GUS's A/D converter use ?
It is a TDA1545. 16 bits and the GF1 sends a 44KHz stream to it.
> For the full 32 16-bit voices it needs 21 bits in fact. Since it's
> only 14 voices in the best quality, it still needs at least 20 bits.
I've done statistical analysis of my recordings, and i usually require
about 12 bits in dynamic range. Even in ambient techno... Well recorded
CDs also dont use the full 16 bits, except for dance records which tend
to maximise the peaks at 16 bit.
> I know that in proffesional devices (synths) they normally use
> 24-bit internal signal processing and 18-bit output A/D converters.
Then the Ensoniq products are not pro by your standards... 19 and 20 bit
internal processing is much more common, particularly when you have
a DSP. 18 bit DAC are more and more used, but are not as common as you imply.
And 18 bit ADC, well they are the exception, not the rule.
> So, how is it with GUS ? Does it utilize 16 bit ADC only ?
Yes (if you meant DAC and not ADC), like the Ensoniq EPS-16+ to which you
refer below...
> How is
> then polyphonie implemented ? I'm asking because i find my new GUS
> not dynamic enough (when compared to Ensoniq EPS-16 +, for example,
> which is a proffesional 16 bit sampler with 20 voices ).
I've had an EPS16+ for quite a long time, and i've rerecorded some songs
i had made on the EPS-16+ with the GUS, and with the exception of the
effects, i see no difference in dynamic. You have to learn how to
properly mix a midi file. This is what will make the difference (i.e. dont
use a 110 velocity for drum and 110 velocity for a maximised lead. And if
you simulate chorus or echo, drop the velocity too. For example, one lead
i use with 4 voices must be used at velocity 20 compared to my 808kick4 at
120.)
Ciao,
--
Francois Dion
'
IdMEDIA \ Managing: \ Publishing: \ Specialising:
CP 312 \ Equation de Base \ Cybernaute \ Multimedia & Telecom
St-Lambert, QC \ Francois Dion \ IDM Software \ design, publishing &
Canada, J4P 3P8 \ Fuzzy Logic \ Raving Up North \ testing(hard/software)
------------------------------
Date: Thu, 3 Mar 1994 15:17:26 -0700 (MST)
From: Dave DeBry <ddebry@dsd.es.com>
Subject: DIGEST ADMIN: GETTING HELP
Shannon Bradford spilled a Coke into a keyboard, producing this:
> I sent a post to this address several days ago and was told something
> to the effect that there are so many GUSDD subscribers that you
> couldn't help them all, and that I could ftp the ones that are
> missing. While ftp'ing a few stray issues isn't a problem, ftp'ing
> them all is a BIG problem. What is the use of a mailing list
> otherwise?
I'm sorry, I think I stated things wrong.
If you just miss one or two digests, it may be because of
several reasons:
1] No digests are sent out if there is no input to generate
one. (This happens often on the SDK list, and
on occasionally to all the lists on weekends.)
2] Systems between the mailer and you may be temporarily down;
obviously, there's not a lot I can do about this.
3] There's a problem with the mailer, and nobody is getting
digests. This is pretty obvious from my point of
view, so you can bet I already know and am working
on it.
4] More are left as an exercise to the reader. :)
What I meant was that if you miss a digest or two, please
don't email me about it. Check the FTP site instead to see if the
latest issue arrived there. If you miss more than that, then go ahead
and mail me; it's probably an isolated problem I haven't seen, and
will be more than happy to fix. :)
--
Dave ddebry@ debry@ \
DeBry dsd. peruvian. | "First I was a hippie, then I was a
es. cs.utah. | stockbroker, now I am a hippie again."
com edu /
------------------------------
Date: Wed, 2 Mar 1994 13:15:15 -0700 (MST)
From: "Shawn T. Rutledge" <rutledge@enuxsa.eas.asu.edu>
Subject: Re: GUS Programmer's Digest V9 #19
> From: bre@os.is (Bjarni R. Einarsson)
> Subject: Shareware/Commercial.. DIGPAK?
>
> Ok.. time for a clever question.
>
> Does Shareware qualify as COMMERCIAL software? I grabbed the DIGPAK and
> MIDPAK kit, and looked at it.. I wanna use it! Am I *allowed* to? Or
> do I have to pay $1000 for it?
Is that the registration price? Where did you get these kits?
> I'm writing a couple of games right now, and I'd like to be able to support
> all those different soundcards.. until I found this I'd been considering GUS
This sounds pretty neat! I'd like to check it out. As for legality, I'm
no lawyer, but in general shareware has an evaluation period specified by
the author, during which it is legal to use the software, and after that
you must register to use it. My personal rule of thumb is if it will make
me money, I'd better register it to avoid any questions coming up later,
so I'd say if you are going to sell your programs that incorporate materials
from the shareware utilities you ought to register the software. They are
more likely to sue you if you made a killing off of their "free" software,
and they recognize that THEY could have made that killing,or at least
benefited from yours.
--
_______ KB7PWD
(_ | |_) shawn.rutledge@asu.edu
__) | | \__________________________________________________________________
* anti-Macintosh * GUS * packet * IEEE * C * Internet * electronics *
------------------------------
Date: Fri, 4 Mar 1994 13:01:46 +1030 (CST)
From: Gavin Scarman <SCARMAN@hfrd.dsto.gov.au>
Subject: Re: GUS Programmer's Digest V9 #19
Subject: Shareware/Commercial.. DIGPAK?
Yes it's shareware and if you don't pay for it _before_ you release your program
then you'll probably be sued till you're pennyless. Shareware means that if you
don't like it you don't pay but if you use it you _must_ pay for it. Personally
I think the term shareware has become too hazy and should be called 'try before
you buy'.
------------------------------
Date: 3 Mar 94 11:05:00 MET
From: "VISX80::GRECNER" <GRECNER%VISX80.decnet@musx53.zfe.siemens.de>
Subject: GUS summary volume
I'm trying to understand how does the GUS maintain the summary digital output.
Am I right that if I make 31 dummy instruments with maximal volume and than
try to play the 32nd instrument, I get only 11-bits of dynamic resolution
for this voice ? Or is it so that when the instrument is not playing,
its volume doesn't count ? And when it starts playing then the other instrument
is made more quiet ? That wouldn't be very nice...
Thanks for comments
Martin Grecner
------------------------------
Date: Wed, 2 Mar 94 11:18:26 CST
From: chuth@lonestar.utsa.edu (Cornel H. Huth)
Subject: It's only Ultramid
> Does Shareware qualify as COMMERCIAL software? I grabbed the DIGPAK and
> MIDPAK kit, and looked at it.. I wanna use it! Am I *allowed* to? Or
> do I have to pay $1000 for it?
No, not $1000 for using _it_.
> I'm writing a couple of games right now, and I'd like to be able to support
> all those different soundcards.. until I found this I'd been considering GUS
> only support. This looks much cooler :-) The plan is to release my stuff
> as shareware once I've milked them for as much school credit as possible..
> If anybody with some legal knowledge can answer my question, I'd be
> very grateful.. and John Ratcliff's mail address would be even nicer.
To quote the README.PRN file in the release:
Documentation for the DIGPAK & MIDPAK Developers Kit v0.9 beta
DIGPAK: $500 per/product distribution license fee.
MIDPAK: $500 per/product distribution license fee.
What type of 'commercial products' does the license fee apply to?
Any piece of software which uses the DIGPAK & MIDPAK drivers for which
the developer collects a fee REQUIRES a license. Yes, this INCLUDES
shareware proudcts [sic] as well as those that sit on the shelf at a
So, if you have two programs that use both "paks", the license fee would
be $2000. If you were only looking at the GUS for sound, you can skip
this and simply use Ultramid since that's all the "pak" drivers do anyway
(they simply implement a "Miles interface" to Ultramid).
Or,
you can pick up Ruckus at Simtel mirrors (RUKC1D.ZIP or RUKQ10.ZIP, for
DOS C/C++ and BASIC compilers, respectively) or my BBS or PDN BBSes.
chh
Internet: chuth@lonestar.utsa.edu or cornel.huth@LChance.sat.tx.us
Fidonet: 1:387/800.8
BBS: The 40th Floor;V32b@1(210)684-8065;M-F:5pm-9am,WE:1p-9a [-0600]
------------------------------
Date: Wed, 2 Mar 1994 09:28:43 -0800 (PST)
From: sjs@netcom.com (Stephen Schow)
Subject: Re: MIDPAK and DIGPAK
> Does Shareware qualify as COMMERCIAL software? I grabbed the DIGPAK and
> MIDPAK kit, and looked at it.. I wanna use it! Am I *allowed* to? Or
> do I have to pay $1000 for it?
Could someone please tell me what DIGPAK and MIDPAK are?
--
-----------------------------------------------------------------
Steve Schow | But you don't need to use the claw, if you
sjs@netcom.com | pick the pear with the big paw paw......
(415) 354-4908 | Have I given you a clue......?
800-722-2007x4908 | - Baloo the Bear
-----------------------------------------------------------------
------------------------------
Date: Thu, 3 Mar 1994 01:51:22 -0700 (MST)
From: Dave DeBry <ddebry@dsd.es.com>
Subject: Moving mailing time...
I'm moving the initial mailing time for the GUS Digests. Up
until now, it has been starting at 12:07am PST, and running for about
4 hours after that -- the mail server sleeps between each send so that
it doesn't flood any mail queues.
I'm moving to start at 12:07 *pm*, PST. This is because the
Digests are now non-local, so I can't fix the machine if it goes down.
Doing the sends during the day increases the chances that someone
local to the machine running the digests will have the system up when
the mailing occurs.
The hit on the net should be minimal; I spread the mailings
out over time, and they are running at Bulk precedence. If you have
any problems with this new time, please email me.
Thanks!
--
Dave ddebry@ debry@ \
DeBry dsd. peruvian. | "A jar of eyes can be a tasty treat."
es. cs.utah. |
com edu /
------------------------------
Date: Wed, 2 Mar 94 15:14:09 GMT
From: Dave.Dice@east.sun.com (Dave Dice)
Subject: subscribe
subscribe
------------------------------
End of GUS Programmer's Digest V9 #20
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