The GUS Daily Digest Tuesday, 30 May 1995 Volume 22 : Number 028 Today's Topics: new GUS win 95 MIDI control in Dos -- how? Re: The GUS Daily Digest V22 #27 48K sound Win95+GUS=WORKS!! Megaem & Novell Dos 7.0 Re: SB16, Enhanced IDE Re: The GUS Daily Digest V22 #27 48kHz vs 44.1kHz FLANGE and others GUS, QEMM, & 386MAX Re: The GUS Daily Digest V22 #27 RE: sound processing questions... A nice way to get ram updates Will GUS Max & SB 2.0 co-exist? 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. ---------------------------------------------------------------------- From: VIKTOR@evt.bme.hu (F. Viktor) Date: Fri, 26 May 1995 03:00:27 Subject: new GUS >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> No, I wouldn't blindly buy the next Gravis "religiously", but I would be MUCH more likely to buy a Gravis Interwave than a CL Interwave [...] end of soap box, Steve (My opinions do not necessarily match those of my employer.) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Hmmm. Everytime a new version of GUS card came out I switched to it. "Religiously". Lucky me that I didn't have to pay a cent for the new ones. I just think if you (an experienced GUSser) don't buy who will buy it? Only the newbies! So stay up to date buy the newer (if it doesn't cost to much for you) and support the newbies with your knowledge. Viktor ------------------------------ From: VIKTOR@evt.bme.hu (F. Viktor) Date: Fri, 26 May 1995 02:56:06 Subject: win 95 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> From: ".oO LeMoN - MeLoN Oo." [...] To people finding win95 buggy .... it's only a beta ... and so what if it's released in '96 ??? You have to give the competition time to catch up. <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Yeah. Win 3.1 and Win 3.11 are not betas but they're still suck. IBM showed their PCDOS 6.3 beta 3-4 month before the final version and it was so good that the final version was exactly the same as the beta. What I want to say is if the beta sux the final will suck too. Sorry for of topic. Viktor ------------------------------ From: Loren Kling (that's me) Date: Mon, 29 May 1995 00:52:59 -0700 (PDT) Subject: MIDI control in Dos -- how? When I load Windows, I can hear line in audio. In DOS, how do I enable the line in to work? I thought that I had the command set in my autoexec. Also, what does MIDIFIER do? I can't figure it out? Will it let me use my MIDI keyboard to play GUS patches? Also, does anybody have a guitar replacement patch? The current distortion guitar (or "hard" guitar) sound really stinks. Thanks. - -- *-*-*-*-*-*-*-*-*-*-*-*-*-*-* | Loren Kling | * lkling@ucssun1.sdsu.edu * | SAN DIEGO STATE UNIVERSITY | *-*-*-*-*-*-*-*-*-*-*-*-*-*-* ------------------------------ From: Sam Date: Mon, 29 May 1995 10:00:20 +0100 (BST) Subject: Re: The GUS Daily Digest V22 #27 [Win95] > I thing, we have all together, start to bomb Microsoft Win-95 team and Adv.Gravis TO CHANGE THIS SITUATION. We have not > a lot of time before Retail version of the WIN-95 will be ready. Here we go again... (sorry, I've answered this 20 times on c.s.i.p.soundcard.*): Gravis have said they will have a driver ready when Win95 ships. (Whether they will or not, I don't know. But they already claim they will - and I heard the claim reported, it was expected to ship in August, I don't know if that's still the case). > > I *still* think it highly unlikely CL would use Interwave when they have > > I think that Creative Labs would be stupid not to jump on the IW band-wagon, > because it's cheaper and better than their AWE(ful) 32, and they'd be losing > money if they ignored its capabilities. Heck, they might even add a few and sell There isn't a band-wagon just yet ;) Surely they get their own chips pretty cheap - i.e. basically free, since they have already paid for design? I'm still unsure as to whether IW is better than AWE32. Better in some ways, sure. But (possibly due to me not succeeding to get onto that Web site yet) I haven't been able to discover whether it includes proper resonant filters on every channel - hopefully, it will, maybe as part of fx. > FLANGING or PHASE SHIFTING is an effect that results in time varying > doubling and nulls in a sound and is generated by varying a delay in a > signal and adding it to the original. Flanging has been described as Sounds easy to do on a GUS, for sure. However, I thought that was what a "PHASER" effect did. (just going by name). What's the difference? Sam [] http://www.dur.ac.uk/~d405ua <[ Web pagE ]> *NEW* Sysex Manager ! [] [] For Software Forge program information and downloads [] Including [] [] NETRIS 1.1 best Tetris game <[ For Win 3.1 ]> Sysex Manager 1.0S [] ------------------------------ From: cam@pf.adied.oz.au (Cameron Newham) Date: Mon, 29 May 95 16:30:08 WST Subject: 48K sound actually, 48K is very useful if you want to play around with the sound and stretch it out or change the pitch. The more samples you have, the more accurate will be the result. c. ------------------------------ From: erlingp@stud.cs.uit.no (Erling Paulsen) Date: Mon, 29 May 1995 11:51:31 +0200 Subject: Win95+GUS=WORKS!! Hiyaa..!!! I just wanted to tell you all that I got my GUS to work perfectly with Win95. I had previously installed win311 with gus, I just installed Win95 right over the old config and *cowabunga* MIDI and DIGI works perfectly in win95.. all, even the MODUS modplayer.. and ALL dos games with GUS works as well.. :) :) I've tried playing MIDI files, samples, playing win-games with midi and digi and it all werks great.. :-) Suddenly I like win95... hehe The E - --------------------------------------- Erling Paulsen | erlingp@stud.cs.uit.no http://www.cs.uit.no/~erlingp Disclaimer: "Life begins at 100MHz" Department of Computer Science - University of Tromsoe, NORWAY - --------------------------------------- ------------------------------ From: bjarne@fagmed.uit.no (B. Osterud) Date: Mon, 29 May 1995 14:07:49 +0200 Subject: Megaem & Novell Dos 7.0 Hi. Anybody know if there has been any development of megaem in regards to Novell Dos 7.0? Post here or mail me. Thank you. B. Osterud - ---------------------------------------------------------------------------- - ----------- B. Osterud | "Live and let die, that is the question of life" bjarne@fagmed.uit.no | Wiliam Shakespear + James Bond - ---------------------------------------------------------------------------- - ----------- ------------------------------ From: "Jason I. Goldovitz" Date: Mon, 29 May 1995 10:27:22 -0400 (EDT) Subject: Re: SB16, Enhanced IDE > Anyway, a new problem has come up. You see, I'm also the proud(more or less) > owner of an Enhanced IDE controller card, and the SB just f*cks up the whole > shit. When I have my SB16 inside my computer(no GUS or SCSI) the diskstation > wont work. Either I get a general failure message or the install prog just > hangs. I've also tried to run the installation from my HD, but it wont help. > Have anybody got a mailing adress(or a digest) for the SB? The same thing > happens when I'm loading the drivers for the EnhIDE card. Evyrthing just hangs. > > Fortunately I have a full-30-days-money-back-warranty. I'll probably end up > using that. > > I've also disabled everything on the SB. Including gameport, MIDI and IDE. > Maybe the problem will disappear if I buy a SB Pro or something without the > IDE interface? > Hmm... like I've said before, the best way to get an SB and a GUS to work together is the SBPro. The SB16 has nasty insidious little low level drivers... Here's the tip: don't load the SB's drivers. You don't need them unless you want to use any of the funky SB16-specific stuff. Just set the BLASTER and SOUND environment variables, and you're all set... oh, also call sb16set or sb16mix, or whatnot... but don't load the two mm drivers in config.sys, because a. they suck up about 35k, and b. they're not compatible with _anything_. - Jason ------------------------------ From: "Adrian Kwong" Date: Mon, 29 May 1995 11:25:57 +0000 Subject: Re: The GUS Daily Digest V22 #27 > > i just wanted to ask some questions about sound effects: > > 1. what is "flange" effect & what for it is used? > > Flange is also known as pitch change. Does that help? uh no. Flange is an effect that is obtained by varying a notch filter's frequency up and down between two frequencies. To demonstrate, if you sing the letter "o", and then move your lips towards an "e" sound, you have done what a flange filter does. (1/2 a cycle) Go back to the "o" and you've completed 1 cycle. If you do it really fast, you get the flange effect. Another way of putting it is, flange is an automated Waa-waa pedal. It works great on a choir sample. (make the computer sound like it has a singing choir) - --- =========================================================================== Adrian Kwong akwong@bme.synapse.net 613-726-6762 Bald Mountain Ent. ak605@freenet.carleton.ca Ottawa, Ontario =========================================================================== ------------------------------ From: jgamache@courrier.usherb.ca (Jerry Gamache) Date: Mon, 29 May 1995 11:25:31 -0500 Subject: 48kHz vs 44.1kHz Hello all, Just to clarify things a bit: When the DAT standard was created, the disk companies wanted a way to prevent direct duplication of CD to DAT to prevent pirating. So they simply chose a new sampling frequency (48kHz). Direct duplication would create songs 8% shorter in duration, and all the notes (like A4 at 440Hz) would sound sharper (478Hz where A#4 is 466Hz) > 3. where i can find formula: "hi-pass filter", "notch filter". Well, the MathCad Signal processing Function pack gives a good reference for filter design formulas: "This filter design procedure is an implementation of algorithms presented in Chapter 7 of Signal Processing Algorithms by Samuel Stearns and Ruth David (Prentice-Hall, Inc.)". So you can either purchase MathCad Plus 5.0 + Signal Processing Function Pack (quite expensive) or visit your local library. Bye, Jerry ------------------------------ From: ANTONIO.CAMPOS@trescantos.sesa.es Date: Mon, 29 May 1995 17:50:03 UTC Subject: FLANGE and others > Subject: sound processing questions... > > 1. what is "flange" effect & what for it is used? The flange effect had their origin in the old amplfier used for first electronic organs. In these, the treble speaker was coupled with a rotatory structure that create two effects interlaced:one pitch change (little) effect - -see Doppler effect- and other of level modulation. The electronic version change these parameters using variable delay chains and modulation in accordance with one triangular waveform. > 2. same question about "reverb", any difference from "echo"? The reverb and echo are based in the same principle. In one room (read room as one closed space) you have the original sound plus one part of the same sound bouncing in the walls, floor and all objects. We speak of reverberation when you can't separate the original sound from the copies, in other words, the separation between the first sound and the others are not distinguish. If you can perceive the sounds separate in the time, we have echo. This two effects are generated electronically using delays and feedbacks. These effects imitate the real generation of the sound into concert halls, teathers, etc. > 3. where i can find formula: "hi-pass filter", "notch filter". I don't know if you want the definition of these expresions. The hi-pass filter is an element that remove the lower frecuencies and let 'pass' the higher. It is used to process the information in the high frecuencies. For notch filter I inteed an element that let pass all the information but removing the correspondent to one band. This band is determinated from the values of the filter. To calculate these filters you have a lot of information in someone manual of electronic. These elements are used in all the fields of the electronic. > For GUS Max users, can you tell the difference between a recorded sample > at 48 khz and one at 44.1 khz? I mean really, blindfolded test and all? > I figured CD quality is already 44.1 khz, and the human ear is deaf to The difference are the number of samples for second. This number have technical importance but is not easy to explain it. With specific equipment it is possible see the difference. The two different frequency are used in CD's (44.1) and DAT (48). Other question is the quality of the digital to analog converters that can convert the best sampled sounds in the worst nightware. This parameter have more influence in the final result in the case of the sound cards. Finally, I hope that you can understand something and I'm sorry for my terrible English. campos@trescantos.sesa.es VMSmail To information: SE3V04::MRGATE::"IRISMB::C=es::ADM=mensatex::PRIV=iris::O=rediris::UNIT=relay::*RFC-822\gus-general(a)mail.orst.edu" VMSmail CC information: CAMPOS ------------------------------ From: csjohn@knuth.mtsu.edu (John Wallace) Date: Mon, 29 May 1995 14:34:59 -0500 (CDT) Subject: GUS, QEMM, & 386MAX I've been having trouble getting Ultima Underworld working with a GUS Max. It locks up with sbos, maxsbos, megaem, and ultramid. Any suggestions? I am using MSDOS 6.20, and have tried both QEMM 5.02 & 386MAX 6.02. - -- (John Wallace || csjohn@knuth.mtsu.edu) && Team OS/2 ------------------------------ From: BackTrak Date: Mon, 29 May 1995 18:44:32 -0500 (CDT) Subject: Re: The GUS Daily Digest V22 #27 In response to the Soundblaster conflict.... >But something else has come up:(. Ultrinit wont detect my GUS. Here are my >settings. Looks like you have your ports changed around... Don't ask me why it makes a differance, but this is what works on my machiene. Mine wouldn't work with the SBpro on 220, and the GUS on 240... Try putting your gus on 220, and set both read and write dma's to 3, and the irq to 11. put the sound blaster emultation settings on irq 5, dma 1. Then, put your SBpro or whatever on 240, Irq 5, Dma 1, and you will be able to use both SB and GUS side by side. I can get SB only games to play trough the SBpro with out any fiddling. (EX: DMP -c2 will play through the sb, and even autodetect it! Wooo Wooo! While DMP with no options will autodetect the GUS.) The only problem I've had, is that X-Wing will not play through the SBpro. (I just use MAXSBOS, and it works fine.) Hope this helps out! If you need more, just drop a line! Later! [ Fluteous wisps of effervescense... [ BPS ]-------> Nick Pirocanac <------] [ Myasmic whorls of incandescense... [25.8%]------> BackTrak@ais.net <-----] [ Trash Can Dreams of a goat named bill... ]EWnewNeWnEwNEWnewNeWnEwNEWnewNe] [ Through all these things, I can yet see...]The Home Page is Now On-Line!!!] [ The colour of your third eye. -- ]HTTP://www.cl.ais.net/~backtrak] ------------------------------ From: Chris James Date: Tue, 30 May 1995 10:51:00 -0700 (PDT) Subject: RE: sound processing questions... >From an older than I'd like to be to the youngies, some answers... 1. what is "flange" effect & what for it is used? 2. same question about "reverb", any difference from "echo"? 3. where i can find formula: "hi-pass filter", "notch filter". In this day an age all the above affects can be acheived in a very similar way. They are all done by adding variously delayed versions of the original signal to the original signal. To complicate matters further we can add "feedback", that is take the combined signal and put it back through the system, in effect adding in the delayed-delayed-plus-original (hope this makes sense). Echo is generally described as the simplest and can be a single delay or more, or can be a single delay with some feedback to produce multiple delays. Reverb is really just a more complicated echo setup, but in good systems some extra processing may be applied to the delayed signals such as filtering. This emulates how well walls/trees/sound reflective surfaces etc generally reflect sounds. For example most surfaces reflect high frequency sounds worse than low frequency (with the proviso that you need larger surfaces to reflect lower frequencies). Hopefully that covers echo and reverb. The name "flanging" originates from how the effect was first achieved. I'm not sure of the precise details but basically one copied a taped sound track to another recorder. The two tape sources were then played back at the same time. While playing, a hand was applied to the flange of one of the tape reels, this slows the tape, let go and the machine would "lurch" to catch up. In this way a slightly delayed version of the original signal was mixed with the original, with the delay being variable. I'm not sure what happens when the tape gets a long way behind (maybe the speed knob was tweaked a little so it always caught up). The delays I think are fairly short, probably < 20 ms. Phasing I think was done in a similar way with another tape machine that had poor speed stability (no-hands, just big wow-and-flutter) so delays were still variable but much shorter, say < 1 ms. The delay time difference between produces a different quality of effect. Phasing only affects high frequencies (say > 1000 Hz), whereas flanging ( > 50 Hz?) more lower frequencies. For those who want to know the technical name for these processes, its comb-filtering. The speed variation produces a moving comb-filter which sounds "swishy". Flanging and phasing are simple comb-filters, produced by adding a short delay version of the original back to the original (with some _modulation_ of the delay). So, if we pick our delays carefully and maybe add some feedback we can produce just about any kind of filter we like. I think at this stage reading a book on signal processing might be in order. If you have Goldwave try this in the expression evaluator: This is the delay range in samples V The rate at which we "swish" in Hz (use 0 < 1 for a good phase) | V wave1(n + 10*sin(2*pi* 3 *t))/2 + wave1(n)/2 Try playing with all the numbers in the above (including the /2s) to get different effects. Chris James (sorry this is so long) ------------------------------ From: gioragur@NetVision.net.il Date: Mon, 29 May 95 10:17:51 PDT Subject: A nice way to get ram updates Hi, I've seen some people are having trouble getting cheap chips :) Well, i've bought my gus about 2 years ago, and it came with 256kb. A few weeks earlier i replaced my old 386/16mhz to an 486 cpu with a VESA Local Bus board. I also replaced my old Trident VGA card with a newer VLB card. And then i noticed : "The Trident's RAM chips sure look like the GUS's" So, i took a chance (knowing nothing about electronics), and... it worked perfectly, the chips were compatible, and since the old Trident card was worth absolutly nothing (Sold new at 20-30$), i now have a 1mb GUS. This might not work with all VGA cards, even newer tridents, but if you want to take that risk... P.S. This is just a thought, people who do this take the responsibility that their computer might explode or other nasty things may happen. Do this at your own risk. - ----------------------------------------------------------------------------- ------------------------------ From: csjohn@knuth.mtsu.edu (John Wallace) Date: Mon, 29 May 1995 23:32:52 -0500 (CDT) Subject: Will GUS Max & SB 2.0 co-exist? Can I get a GUS & an old 8-bit Soundblaster 2.0 board to co-exist in the same machine? Sometimes I'd like to use SBOS for digital sound effects, and sometimes I'd like to use the old Soundblaster board. Is this possible? When I run setgus -i everything checks out except for the SBOS Mode when I'm doing diagnostics. It says "Bad DMA data compare (read)" Is there any solution for this? My SB is set at irq 5, dma 1, port 220 My GUS Max is: ultrinit 240,3,3,12,7 This is all under MSDOS 6.20. Any help would be appreciated. Thanks. - -- (John Wallace || csjohn@knuth.mtsu.edu) && Team OS/2 ------------------------------ End of The GUS Daily Digest V22 #28 *********************************** To post to tomorrow's digest: To (un)subscribe or get help: To contact a human (last resort): FTP Sites Archive Directories --------- ------------------- Main N.American Site: ftp.orst.edu pub/packages/gravis wuarchive.wustl.edu systems/ibmpc/ultrasound Main Asian Site: nctuccca.edu.tw PC/ultrasound Main European Site: src.doc.ic.ac.uk packages/ultrasound Main Australian Site: ftp.mpx.com.au /ultrasound/general /ultrasound/submit South African Site: ftp.sun.ac.za /pub/packages/ultrasound Submissions: archive.epas.utoronto.ca pub/pc/ultrasound/submit Newly Validated Files: archive.epas.utoronto.ca pub/pc/ultrasound Mirrors: garbo.uwasa.fi mirror/ultrasound ftp.st.nepean.uws.edu.au pc/ultrasound ftp.luth.se pub/msdos/ultrasound Gopher Sites Menu directory ------------ -------------- Main Site: src.doc.ic.ac.uk packages/ultrasound WWW Pages --------- Main Site: http://www.xmission.com/~grue/gus.html Main European Site: http://src.doc.ic.ac.uk/packages/ultrasound/ Main Australian Site: http://ftp.mpx.com.au/archive/ultrasound/general/ http://ftp.mpx.com.au/archive/ultrasound/submit/ http://ftp.mpx.com.au/gravis.html Mirrors: http://www.st.nepean.uws.edu.au/pub/pc/ultrasound/ GUS Digest Archives: http://gpu.srv.ualberta.ca/~itam/digest.html http://www.student.adelaide.edu.au/~godfathr/gus/gus.html MailServer For Archive Access: Email to Hints: - Get the FAQ from the FTP sites or the request server. - Mail to for info about other GUS related mailing lists (programmers, musicians, etc.).