EMUSIC-L Digest Volume 60, Issue 08 This issue's topics: Akai S01 sampler- any comments? AKAI S612/Electro-Harmonix Boss DR-660 sysex control? CD RECORDER Diference between Korg X3 and 01/wfd (2 messages) DRUM MACHINES! (3 messages) Drum sync Guitar Controllers Guitar Synthesis KORG 01/WFD Korg Poly-800 Owners manual kurzweil question (5 messages) MIDI for SoundBlaster miracle Need help with Ensoniq servicing Re Phantom Power Roland U-20 problems (2 messages) Session 8 SP-12 / Atari Users? WhatIsIt! Akai 612 professional. (fwd) Your EMUSIC-L Digest moderator is Joe McMahon . You may subscribe to EMUSIC-L by sending mail to listserv@american.edu with the line "SUB EMUSIC-L your name" as the text. The EMUSIC-L archive is a service of SunSite (sunsite.unc.edu) at the University of North Carolina. ------------------------------------------------------------------------ Date: Mon, 31 Jan 1994 11:29:00 EDT From: "J. KEITH OSTERTAG" Subject: Akai S01 sampler- any comments? Anyone have first hand experience with the Akai S01 sampler they care to share? I'm considering buying one (used for $600). -Keith ------------------------------ Date: Sat, 1 Jan 1994 12:29:35 -0800 From: Primordial Audio Slime Subject: AKAI S612/Electro-Harmonix OK, to set the record straight (as straight as I can make it): I found the reference about the S612/EH connection, which is an old copy of a Severed Heads booklet. Here's what it sez: The Akai S612 is a joy, it was based upon a design by EH in New York - those lovable weirdos that brought you the Graphic Fuzz, Electric Mistress, Clone Theory, etc. etc. They called it a Super Replay and then Akai have made it polyphonic and MIDI. But it still retains sliders for sample start/sample end and dragging these forward will make grunty mangled chopups.... If you want to hear how it was used, check out Severed Heads' Come Visit The Big Bigot. Good luck figuring out which pieces they used it on, because they use lots of tape loops and other sampling delays. -- Romeo ms20@u.washington.edu ------------------------------ Date: Sun, 16 Jan 1994 14:18:26 CST From: hnrssavant@KUHUB.CC.UKANS.EDU Subject: I've got a Boss DR-660 drum machine that I use as a sound module for sequencing. Is there a way to control the levels and panning of the individual sounds through system exclusive. I'm trying to set up a mixer in Cubase so I can control these parameters. Unfortunately I keep getting a checksum error message. One opinion I have recieved is that such an operation is beyond the capabilities of the unit. However there are system exclusive addresses in the manual for the desired parameters so I'm looking for a second opinion. GUITARMAN ------------------------------ Date: Sat, 22 Jan 1994 01:17:04 CET From: MACIEK ZIELINSKI Subject: CD RECORDER CAN ANYBODY WRITE ME SOME INFORMATIONS ABOUT CD RECORDERS. I NEED INFORMATIONS ABOUT PRICES, SOUND QUALITY AND CONNECTIONS OF NEW MODELS AND PRICES OF DISKS. E-MAIL ME AT: GREENSKI@PLEARN.EDU.PL TNX ! BYE ! MACIEK ZIELINSKI ------------------------------ Date: Mon, 31 Jan 1994 07:50:00 EST From: Pedro Hernando Rozo Mora Subject: Diference between Korg X3 and 01/wfd Hello I need to know the diference between Korg X3 and 01/wfd; prices, and characteris tics, recomendations for buy. this synthetizers is good ??? att Pedro Rozo mail: PROZO@iteccol ------------------------------ Date: Mon, 31 Jan 1994 11:52:42 -0500 From: Alper Kerman Subject: Re: Diference between Korg X3 and 01/wfd > Hello > > I need to know the diference between Korg X3 and 01/wfd; prices, and characteris > tics, recomendations for buy. this synthetizers is good ??? > > > att > > Pedro Rozo > mail: PROZO@iteccol > I can tell you what little I know; Korg X3 is a cross between Korg M1 and Korg 01/Wfd. They've integrated the sounds of M1 and the sequencing, wave shaping capability of 01/Wfd into one unit. From what I understand, it is meant for market who previously loved M1 sounds, and yet suffered from a lack of a built in sequencer. I own a Korg 01/Wfd (for about 2 years), I love it and I would recommended!...I've heard good things about Korg 01/Wfd before and after I bought it, but have not heard anything about Korg X3. Korg 01/Wfd is priced around $2000 or little more. If you need more info on Korg 01/Wfd, just let me know! The Young Turk ------------------------------ Date: Thu, 27 Jan 1994 14:28:55 +0000 From: Buchanan Blake Subject: DRUM MACHINES! Can anyone suggest a good drum machine to run with a Roland d5 and a 486. It is really going to be needed to compose dance tracks like techno piano, acid and trance. any help given to me would be great. all the best buchanan blake hnd205@dcs.napier.ac.uk ------------------------------ Date: Thu, 27 Jan 1994 09:09:14 -0700 From: jk Subject: Re: DRUM MACHINES! >Can anyone suggest a good drum machine to run with a Roland d5 and a 486. >It is really going to be needed to compose dance tracks like techno piano, >acid and trance. >any help given to me would be great. >all the best > >buchanan blake >hnd205@dcs.napier.ac.uk A very versatile and reasonably priced machine is the Alesis DR4. It would easily enhance the music you are doing. If you can find a used HR-16B, that might do also (tunable, panable, 16-bit 48 kHz samples, cheap). Hope it helps. PS: you should really be posting this to SYNTH-L, as it relates specifically to harwdware. ;) _ -john ___ __/ | ___ | | JKrikawa@CCIT.Arizona.Edu | |___ ________ \______/ \__________ Tucson, AZ ___../\./\/ \____/ \____ ------------------------------ Date: Thu, 27 Jan 1994 12:11:28 -0600 From: Arne Claassen ISE Subject: Re: DRUM MACHINES! > A very versatile and reasonably priced machine is the Alesis DR4. It would > easily enhance the music you are doing. If you can find a used HR-16B, that > might do also (tunable, panable, 16-bit 48 kHz samples, cheap). Hope it helps. Unless i'm unaware of the model, i would have to correct you and say that its an alesis D4. Aside from that i second the recommendation. If you are going to program it through a computer anyway, you won't need the features of an SR-16 or HR-16 and the D4 has better and more sounds and trigger inputs. I can only say i love mine and at $300 new, $200 used it's a fantastic machine. -- Arne F. Claassen |"In cows we trust | EPS Classic * D4 | E pluribus Moo" | Mac Centris 650 | | ------------------------------ Date: Wed, 26 Jan 1994 19:20:38 -0500 From: "Joseph D. McMahon" Subject: Drum sync Joe Welfeld writes: > > The first attempt at recording some midi drum > tracks along with bass and rhythem guitar tracks didn`t work > due to "the quantization used ? We did lay down a sympte > time code on track eight, and could sync things up but the drums > were noticably off the beat. > Welcome to the world of playing with machines. Unfortunately, you will have to adjust to the idea that the drums are "right" and that the live players will have to follow along. If you mean something else, please elucidate. > The questions are: what is, and > when do, you use Midi time code, vs sympte, vs external clocking ?, > Im not 100% sure what I am asking here, but thought this would > start off a good discussion. (this is my first posting to this > list) Welcome! I believe that I'll let others spell out the precise relations of MTC, SMPTE, and clocking, since nearly anyone is more familiar with it than I. --- Joe M. ------------------------------ Date: Mon, 3 Jan 1994 10:06:41 +0200 From: Yiannis Ventikos Subject: Guitar Controllers Hi folks, The subject says it all... A friend is starting a midi studio based on a guitar midi controller (I know... I know... but he is a classic guitarist and a damn good one...). So he is looking for equip. but the only thing he found was a Roland thing. Any info on gear is welcome, names, prices, specs etc... He will buy a couple of synths/samplers/rboxes, a computer with software and the midi controller. I can help him on the rest but being a keybordist I know nothing of guitar midi. If however you know of a sound module or software that *binds* *exceptionally* with guitar midi, let us know... Since I cant read this list, please e-mail me (address below) If I get more than 4 answers I'll summ. and post. Thanx ------- ****************************************************************************** * Yiannis Ventikos * DISCLAIMER * * Viscous Flows Group, * Any and all opinions that * * Dept. of Naval Arch. & Marine Eng., * I have expressed so far * * National Technical University of Athens, * reflect thoughts of mine * * P.O. Box 64070, GR-15710, Zografos, GREECE * and mine alone and have * * Voice: +30 1 7700405 * nothing to do with the * * Fax: +30 1 7774478 * policy of the Department * * e-mail: yvent@areti.naval.ntua.gr * I currently belong to. * * IRCNICK yvent * They dont care much anyway * ****************************************************************************** ------------------------------ Date: Sun, 23 Jan 1994 11:29:04 -0400 From: "ANDREW G. YOUNGER" Subject: Guitar Synthesis If anyone kow where I can order the following equipment cheaply (any of) or where I might be able to inquire for good used equipment please e-mail me at: AYOUNGER@ac.dal.ca The equipment is: Roland GK-2 Guitar synthesis pickup Roland GR-5 Guitar Synthesis rack processor Roland GR-1 Guitar Synthesis Floor processor Also, does anyone have any preferences in four and eight track recorders? Brands, features, etc.? ------------------------------ Date: Mon, 10 Jan 1994 19:01:10 EST From: Robert Governale Subject: KORG 01/WFD Oregon Middle School WE NEED HELP IN USING THE FULL CAPABILITY OF THE KORG 01/WFD MUSIC WORK STATION WITH AN EXTERNAL SEQUENCING PROGRAM. IF ANYONE OUT THERE HAS KNOWLEDGE WITH THIS EQUIPMENT PLEASE RESPOND. BOB GOVERNALE OREGON MIDDLE SCHOOL MEDFORD, NY 11763 RGOVERNA%SUFFPAT@SUFFOLK.BITNET ------------------------------ Date: Mon, 31 Jan 1994 10:55:00 PST From: "Rossi, John" Subject: Korg Poly-800 Owners manual I purchased a Poly-800 on a whim this weekend for use as a keyboard controller in the small studio I have set up in my Dad's house. I am looking for an owners manual. I will pay for duplication and shipping. Thanks John ------------------------------ Date: Tue, 18 Jan 1994 03:23:53 -0500 From: Mark Swann Subject: kurzweil question hi, hopefully there is a kurzweil K2000 person out there,, I've only messed with mine for a few weeks,, and cannot find the answer in the manual.... so,, in MIDI mode,, on the xmit page,, the effect that is associated with the channel that is selected on this page seems to effect ALL midi channels when I play back the sequencer (cakewalk) WHY? any help appreciated.. svann ------------------------------ Date: Wed, 19 Jan 1994 06:08:59 -0700 From: Robert Mackenzie Wallace <29220@EF.GC.MARICOPA.EDU> Subject: Re: kurzweil question Hi Mark -- Yes its true! It not only does the current channel, but from what I can tell -- whaterever is the dsp effect on channel 1 translates to all 16 channels. I was dissapointed at first because in some cases that cancels out the design of other presets. (You'll notice parens around a preset you can't load i. e.: (Many Facets) The reason is the DSP chip is only monogamous -- if the K2000 had 16 DSP's, digital signal processors, you could maintain channel integrity. Still in all, it's a killer sound module. I used it along with the sound canvas on my latest CD, "Kaleidosonics". ------------------------------ Date: Wed, 19 Jan 1994 11:12:21 -0800 From: metlay Subject: Re: kurzweil question >The reason is the DSP chip is only monogamous Aieee, too good to pass up! Anyone know where I can get a K2000 retrofit for a DSP that humps around behind the owner's back? Sorry (not), metlay ps. Well, it beats what I had to say about the coming of You Know Who.... pps. Nice tirade, Nick. "There is no Law but Metlay's Law and Rothwell is his Prophet. Prophet-VS, to be exact." ppps. ObSynthContent: Can someone point me to a phone number for Korg USA, where I can order replacement parts? They don't put them in ads any more, alas. I may have a "look what I did to my DSS-1" Story to rival Eric's soon.... and now a few words from my boss: "GETBACKTOWOOOOOORK!!!" Yikes! Bye. -- mike metlay * atomic city * box 81175 pgh pa 15217-0675 * metlay@netcom.com --------------------------------------------------------------------------- Prophet T8 General MIDI Brass patch: *BLAAAAAAAAAAAAAAAAAAAAAAAAAAAATTTT!!* Prophet T8 General MIDI Piano patch: *BLAAAAAAAAAAAAAAAAAAAAAAAAAAAATTTT!!* Prophet T8 General MIDI Synth patch: *BLAAAAAAAAAAAAAAAAAAAAAAAAAAAATTTT!!* ------------------------------ Date: Wed, 19 Jan 1994 14:23:56 -0500 From: Patrick Robinson Subject: Re: kurzweil question > >The reason is the DSP chip is only monogamous > > Aieee, too good to pass up! Anyone know where I can get a K2000 retrofit > for a DSP that humps around behind the owner's back? How about a onanistic DSP? Would that work? > ppps. ObSynthContent: Can someone point me to a phone number for Korg > USA, where I can order replacement parts? They don't put them in > ads any more, alas. I've got 2 numbers: Korg: (516) 333-9100 Korg Tech Support: (516) 333-8737 I don't know who that first one gets you, and both numbers are at least a couple of years old. -Patrick pgr@ramandu.ext.vt.edu ------------------------------ Date: Sat, 22 Jan 1994 22:18:41 +0000 From: Nick Rothwell Subject: Re: kurzweil question >pps. Nice tirade, Nick. Yeah, well, so much for that New Year resolution... The only thing which is going to be interesting about the QuadraSynth, if we ever see it, is the fact that it's going to have 76 keys. Now, when it comes to significant products, the one that's just caused me to raise an eyebrow or two is Yamaha's announcement of the DMP9-16. That looks seriously useful, if they've not blown the architecture, so that's what I'll be saving up for... Nick Rothwell | cassiel@cassiel.demon.co.uk CASSIEL Contemporary Music/Dance | cassiel@cix.compulink.co.uk ------------------------------ Date: Thu, 6 Jan 1994 16:26:06 +0100 From: Martin Grecner Subject: MIDI for SoundBlaster To everyone who asked me for info on how to build SoundBlaster MIDI cable. I decided to post it on this list, since there was at least 20 people who wanted it. This is what I have, it should be very easy to build if you know what resistor is. :-) I forgot the source of it, but it was one ftp server having lot of simillar stuff. I'll try to find the address. Enjoy. Martin Grecner >From: hardrock@underg.UUCP (hard rock) >Subject: Sound Blaster MIDI port >Date: 18 Feb 92 21:12:52 GMT I have downloaded a program called CHEAPMID.ZIP, I found it on Point of no return. I was just wondering if anyone else have tried to project. It is suppose to make the interface required to connect midi equipment to the sound blaster. Also when I went to buy the equipment, I could only find the 8 pin chip for the midi, and it talked about a 6 bit chip. Well here is the text for those who are interested. BTW, I haven't tried this out yet, I have created the model, but need some equipment to test it on. --- The following text explains how to build a MIDI interface for the Sound Blaster. The circuit is my own design, but works just like the commercialy available interfaces that retails for $60-$90. Here is the list of parts necessary: Qty. Part 1 Sharp PC900 or HP 6N138 opto-isolator 1 DB15P (15 pin 'D' connector, male. like joystick connector) 3 220 ohm resistors (2 for input, 1 for EACH output you need) 1 3 conductor shielded cable (length is up to you) 2 Female 5 pin DIN connector (1 for input, 1 for each output you need) 1 PC board with pre-drilled holes (about 2" x 2" from Radio Shack) A few short lengths of hook-up wire All of these parts, except the first 2, are available from Radio Shack. Construction techniques are completely up to you, if you want to go ultra-cheap, you don't even need a PC board or enclosure, and you could use a MIDI cable you already have by cutting it in the middle. I used a PC900 out of a non-working organ and cut the end off of a joystick I didn't need and built the whole thing for about $4.00. Buying all the parts new, and using an enclosure with built-in MIDI jacks may cost about $20 or so. Here is a diagram of the DB15P connector (looking at the solder side). 1 5 8 o o o o o o o o o o o o o o o 9 12 15 Here is the 5 pin FEMALE DIN plug (solder side). 2 5 o 4 o o 3 o o 1 This is the circuit for the MIDI INPUT. +-----> To pin 5 of 'D' connector | To pin 15 of 'D' connector <---+ | +-------+-----> To pin 9 of 'D' con | | | | |6 |5 |4 \ +---------------+ / 220 ohm | PC900 | \ resistor | or | / | o HP 6N138 | | +---------------+ +------> To pin 6 of PC900 |1 |2 |3 | | | \ | +-----> No connection 220 ohm / | resistor \ | / +-----> To pin 5 of DIN connector | To pin 4 of DIN connector <----+ Don't overlook the two 220 ohm resistors. Also, for cables longer than a few feet, connect pin 2 of the DIN to pin 5 of the 'D' connector. The output circuit is much simpler. 220 ohm resistor To pin 12 of 'D' connector <---------/\/\/\/\/---------> To pin 5 of DIN con. To pin 15 of 'D' connector <---------------------------> To pin 4 of DIN con. Also, for cables longer than a few feet, connect pin 2 of the DIN to pin 5 of the 'D' connector. This circuit has been built and tested by me, using Voyetra's SPJr, and a cheap-o Casio keyboard. The input and output do work as shown here, but I don't have any other MIDI devices to use to test using more than 1 output device. Theoretically, it should work fine, but it has not been tested. The chances of hurting anything by trying is slim and none. This circuit DOES work, but I make no guarantees, nor will I be held responsible for any damages you may cause from your use of this information. If you have any questions, or would like to buy one already built for you, I can be contacted on: The Lighthouse BBS (207) 255-3700 (username is Ronald Davis) The Music Studio BBS (708) 351-0288 (username is Volstagg) From: bl562@cleveland.Freenet.Edu (Gary P Gabriel) Subject: Re: Sound Blaster MIDI port Date: 20 Feb 92 02:33:01 GMT I built CHEAPMID board of which you speak. I could not get it to work. The Sharp chip was unavailable the the 6N26 is not a direct replacement for the Sharp (PC900?) chip. I found another set of plans, built it, and have used it with relative success. If I can remember where I got it I will post it. From: kdrenard@smoke.brl.mil (Kenneth D. Renard) Subject: Re: SoundBlaster MIDI port Date: 20 Feb 92 13:41:38 GMT I believe there is a mistake in the MIDI-out portion of this design in that pin 15 from the D-connector is the MIDI-in (see SB manual). Pin 12 should go through the 220 ohm resistor to DIN pin 5 as stated in the designs. I'm pretty sure that DIN pin 4 should be +5 volts. Connect it to pin 9 (instead of pin 15) from the D-connector through a 220 ohm resistor. I could not find a PC900 or HP 6N138 opto-isolator, but Mouser electronics crossed it to an NTE 3093 which happens to be an 8-pin DIP. Mouser was very helpful and sent me the pin-out which shows that 2 of the pins are not used. All I need now is the pinout for the HP 6N138 to compare the two. I just completed another design for the MIDI connector, but haven't worked the bugs out yet. I will try to post it soon. Ken Renard From: luthe@jach.hawaii.edu (Rusty Luthe) Subject: Re: SoundBlaster MIDI port Date: 21 Feb 92 10:26:13 GMT Have you tried to get the PC900 isolater from Mix publications? They have been selling them for quit awhile. Good Luck Rusty From: dev@hollywood.acsc.com Subject: SB MIDI circuits I have built the one with the PC900. Only MIDI-OUT works on my synth (I really haven't tested MIDI-IN). Dev Mazumdar dev@acsc.com ============================== A cheap MIDI connector box for the Sound Blaster card v1.2 March 22nd, 1991 by Adam Mirowski mir@chorus.fr ============================== Sound Blaster has a "built-in MIDI interface", but "all you need is a MIDI Connector Box (optionally available) in order to connect your SB to MIDI instruments or keyboards", says the add on the box. The list price for that gadget is as high as $79.95 and anyway it is not available here in France. Also, the MIDI interface is not compatible with the MPU-401 standard (and de facto norm) and is only one-way-at-a-time. So the box is not worth the money, except if you try to set up it by yourself. For $5 you can get the basic functionalities and for $10 everything which comes with the original one. I have heard on Usenet recently that Sound Blaster will soon come out with a standard MIDI interface. Chances are that this circuit will also work with that new version. ! Corrections (AM): SB Pro doesn't seem to be MPU compatible; ! it is already provided with a MIDI Adaptor ! that you can also purchase separately for $25 (probably for ! an old SB.) I suppose that the cabling of this MIDI adaptor ! corresponds to paragraph II of the "SUPPLEMENT" (see below.) ! I was also told that SB v2.0 has a bidirectional MIDI port. ! This could be also the case for SB Pro. Parts ===== Qty Name Type Tandy ref --------------------------------------------------- 1 Optocoupler 4N25 276-9294 3 Resistors 220 ohm 271-015 1 Resistor 1 Kohm 271-023 1 AND gate 74LS08 276-9276 2 DIN plugs Female 5 pins 274-9110 1 Canon DB plug Male 15 pins Not sold [1] Diode 1N914 or 1N4148 276-1122/276-9014 1 Veroboard (*) 5cm by 5cm 8 Wires Not shielded 1 Box to put all that stuff inside [] - didn't use it myself. (*) It is a piece of epoxide with a raster of holes spaced at 2.54mm. On one side there are preprinted copper tracks along each line of holes (in one direction only). You cut off unused portions of the tracks and join the other with straps, so as to get a primitive form of a printed circuit board. You then insert the electronic parts and solder them. Sound Blaster MIDI/Game connector REAL cabling ============================================== +------------------------------------------+ ! Pin Signal ! !------------------------------------------! ! 1 +5V ! ! 2 X button for joystick A ! ! 3 X potentiometer for joystick A ! ! 4 Ground ! ! 5 Ground ! ! 6 Y potentiometer for joystick A ! ! 7 Y button for joystick A ! ! 8 +5V ! ! 9 +5V ! ! 10 X button for joystick B ! ! 11 X potentiometer for joystick B ! ! 12 MIDI out ! ! 13 Y potentiometer for joystick B ! ! 14 Y button for joystick B ! ! 15 MIDI in ! +------------------------------------------+ The interesting pins are 12, 15, 4 (or 5) and 9 (or 8 or 1). BTW, if your joystick Y cable assumes that pin 12 is ground (as it is on a normal game port), it will not work with the SB. Interface cabling ================= The cabling is roughly the same as in the MIDI 1.0 Specification, except that I used a different optocoupler and "AND" gates instead of inverters (simply because Tandy sold the former with docs :-). Numbers between parentheses are pin numbers. ICs have a standard pin numbering scheme. Other parts have pin numbers written on them. For resistors, it's simply to make difference between the two ends. 6 5 4 +--!----!----!--+ Usually ! ! IC seen from the top a hole --> > ! ! ! +--!----!----!--+ 1 2 3 "MIDI-in", "MIDI-out" design the female MIDI plugs. "Game/MIDI" designs the 15 pin female connector on the SB. FROM PIN TO PIN MIDI input part --------------- MIDI-in (4) Resistor1 220ohm (1) Resistor1 220ohm (2) Optocoupler (1) Optocoupler (2) MIDI-in (5) [Optocoupler (1) Diode -] [Optocoupler (2) Diode +] Games/MIDI (9) Resistor4 1Kohm (1) Resistor4 1Kohm (2) Optocoupler (5) Games/MIDI (15) Optocoupler (5) Optocoupler (4) Game/MIDI (4) MIDI output part ---------------- Games/MIDI (12) AND gate (1) AND gate (1) AND gate (2) AND gate (3) Resistor2 220ohm (1) Resistor2 220ohm (2) MIDI-out (5) MIDI-out (4) Resistor3 220ohm (1) Resistor3 220ohm (2) Game/MIDI (9) Games/MIDI (9) AND gate (14) Games/MIDI (4) AND gate (7) Final remarks ============= When using a "veroboard", don't forget to cut tracks under the IC and the optocoupler, or they will be short-circuited. You will probably also want to setup two MIDI cords, to attach the interface to an instrument. To stay under $5, you could use male plugs instead of female ones for the interface and plug them directly into the instrument. When preparing the cords, be careful about not swapping the wires. The pin 4 from one plug must be wired to pin 4 from the other end, and the pin 5 must be attached to pin 5. None of the other pins must be wired, nor the overall cable shielded. There is no ground in MIDI cords. If you want more outputs, you have to slightly extend the MIDI output part. I would rather have only one AND gate input attached to the SB MIDI-out pin and only one MIDI-out plug per AND gate output. If Creative Labs offer 5 MIDI outs in the original Connector Box, it is probably because they use simple inverters (or buffers) and there are 6 per IC. As I previously said, I bought AND gates only because they had data sheets attached, whereas inverters/buffers had not... Direct your remarks to mir@chorus.fr, or to M. Adam Mirowski Chorus systemes 6, avenue Gustave Eiffel F-78182 Saint-Quentin-en-Yvelines CEDEX FRANCE My phone number is +33 (1) 30-64-82-00 I obviously won't take any responsibility for the damages you could do to your Sound Blaster or to your MIDI equipment while using this interface. SUPPLEMENT ---------- I) You can use invertors in place of AND gates. The schematic diagram would be the following (for 2 outputs), instead of the old "MIDI output part" description. !\ !\ SB ! \ 2 ! \ 4 +--------+ 5 MIDI 4 +--------+ SB MIDI ---! >o--+---! >o----! R=220 !----[ out ]---! R=220 !---- +5V out 1! / ! 3! / +--------+ plug 1 +--------+ (pin 9) 12 !/ ! !/ ! ! ! !\ ! ! \ 6 +--------+ 5 MIDI 4 +--------+ SB +---! >o----! R=220 !----[ out ]---! R=220 !----- +5V ! 5! / +--------+ plug 2 +--------+ (pin 9) ! !/ ! ! +--- etc. Pin 14 of the chip must be connected to +5V, and pin 7 to ground, just like with the previous one. Also don't forget to remove the strap between old pins 1 and 2! It is no more necessary and would court- circuit the first inverter. The other inverters in the chip are cabled between pins 13 (input) and 12 (output), 11 and 10, 9 and 8 (all the inverters point to the right). If you try to use CMOS inverters (4... series) instead of TTL ones (74.. and 74LS... series), please remark that CMOS inverters "point" to the left. Tandy references are different for 74.., 74LS.. and 74HC.. circuits. II) If you really want to save money, don't put any AND gate. Connect together the wires going to pins 1, 2 & 3. Don't short-circuit the power supply pins; leave them unconnected. III) For the optocoupler, you could also use a 4N26, a 4N27 or a 4N28. -- Adam Mirowski, mir@chorus.fr (FRANCE), tel. +33 (1) 30-64-82-00 or 74 Chorus systemes, 6, av.Gustave Eiffel, 78182 Saint-Quentin-en-Yvelines CEDEX >From rjf@gdwb (Rex Foord) Tue Dec 8 13:48:54 1992 From: rjf@gdwb.oz.au (Rex Foord) Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.soundcard,rec.music.synth,comp.music,s ci.electronics Subject: Re: Looking for that Sound-Blaster to MIDI circuit again. Message-ID: <3442@peking.gdwb.oz.au> Date: 6 Dec 92 11:44:14 GMT References: <1992Dec1.065123.6001@julian.uwo.ca> Followup-To: comp.sys.ibm.pc.hardware Lines: 71 Nntp-Posting-Host: lewis.isd.gdwb.oz.au wlsmith@valve.heart.rri.uwo.ca (Wayne Smith) writes: >About a month ago, some kind person sent me a text file that described >the circuit needed to create a MIDI interface for the BoudBlaster sound >card. If you can send it to me again, or if anyone else can help me >out, I promise that I won't lose it again.... :) I have just completed a MIDI interface for a soundblaster compatible card - Sound Galaxy BX. It uses the same pin outs as the soundblaster and it all seems to work. here is a rough diagram of the circuit I used. It is based on an article in the soundblaster newsletter, and some other MIDI interface circuits for other systems. 15 pin D connector 220R 1 +5v ------------------------/\/\/\---------------\ \ 4 5 gnd ---------------------------------------------2 MIDI OUT / 5 12 tx ------------------------/\/\/\---------------/ 220R 1 +5v --------------- | | \ | 220R / | R1 \ | / | | | 220R 15 rx -------- | ---------/\/\/\--------\ |C |B |A | \ 4 --------------------- | MIDI IN | 6 8 2 | ----- / 5 | | / \ IN914 --/ | PC900 | --- | | | | | | 5 3 | | | --------------------- | | |E |K | | | | | | 5 gnd -------- ---------------------- PC900 is a high speed optoisolator I built it on a small piece of veroboard in a small plastic box with the 2 MIDI 5pin DIN plugs mounted on the lid. You may want to check R1 above. In one circuit I saw it was a higher value (390R). I used 220R but I haven't looked at the output on a cro to check what the signal looks like yet. I tested it using my synth and it played ok and I was able to record ok. Let me know if you have problems. Could some kind soul who has a real midi interface confirm the value of R1 above? -- Rex Foord PC Support | Information Systems Division |"Time is nature's Email: rjf@gdwb.OZ.AU | Geelong & District Water Board | way of making sure Phone: +61 52 262329 | 61-67 Ryrie St Geelong | everything doesn't Fax: +61 52 218236 | Victoria 3220 Australia | happen all at once" | | W. Allen ------------------------------ Date: Fri, 21 Jan 1994 01:43:33 -0400 From: "Nicholas P. Traenkner" Subject: miracle A while back a friend gave me his disks for the Miracle Keyboard piano tutoring system, telling me that the sequencing capabilities were compatible with my 286 system with soundblaster pro card. Unfortunately, after installing the software, I spent some time fiddling with my midi adaptor cables, trying first the soundblaster ports, then my mouse port, etc etc... but I wasn't able to get it running. My question is, is the Miracle Keayboard software compatible with my PC and soundblaster card and my Yamaha ps-6100 keyboard with midi ports? If its not I have three disks that are useless, and my friend, now living in california, is without his software... Nicholas Traenkner engxt343@kentvxa.kent.edu ------------------------------ Date: Tue, 25 Jan 1994 21:19:28 PST From: Vic Icasas Subject: ASR-10 Questions I've got a couple of questions about the Ensoniq ASR-10 keyboard ... I recently bought one from Tsang Fook Music in Hong Kong (lousy service!) and upon arrival (BTW, I live in the Philippines) found out that the darn thing was operating intermittently. (i.e. turning on the power sometimes gets nothing but garbage on the screen) Sent it back to them, of course, but they sent it right back to me saying that it worked perfectly. It still acts up from time to time, but I've found that if I don't move it around too much, it works fine. Obviously, something's loose, but who can I turn to in this part of the world for help? I really don't want to rely on the bozos who sold me the thing. And in a similar manner, I also would like to upgrade the internal system BIOS to the new version, (and maybe eventually install the SCSI controller, digital I/Os, and multiple outs) but am considering shipping the keyboard to the US for the upgrades only as a last resort. Do I have any other options? Vic Icasas / Manila, Philippines Tel: (632) 842-3906 or (632) 842-3909 Fax: (632) 87-88-97 FIDO: 6:751/399.9 Internet: vic.icasas@p9.f399.n751.z6.fidonet.org -- uucp: uunet!m2xenix!puddle!6!751!399.9!Vic.Icasas Internet: Vic.Icasas@p9.f399.n751.z6.fidonet.org ------------------------------ Date: Tue, 18 Jan 1994 09:56:03 GMT From: Philip Jones Subject: Re Phantom Power Hi All, I guess this is a bit off topic as well but, does anyone have a circuit diagram or description for filtering phantom power off a mic line so that it can be use to power a DI Box, mic etc. I would be very interested if you do and would also be grateful if you could tell me where you found the information from Thanks Phil Jones (pj02@ee.ic.ac.uk) - Imperial College, London, UK ------------------------------ Date: Tue, 11 Jan 1994 10:28:00 LCL From: Peter Dorsch Subject: Re: Roland U-20 problems Hallo I just have the same problems with my U20 and I'm interested if solve that problem.I opend the U20 to see if you can do anything but the place under the keys is very difficult to enter. I thought to put some contact spray under the keys. What do you think? Peter ------------------------------ Date: Wed, 12 Jan 1994 23:58:14 -0600 From: Jeff Wheeler Subject: Re: Roland U-20 problems On Tue, 11 Jan 1994, Peter Dorsch wrote: > Hallo > I just have the same problems with my U20 and I'm interested if > solve that problem.I opend the U20 to see if you can do anything > but the place under the keys is very difficult to enter. I thought > to put some contact spray under the keys. What do you think? > Peter I just contacted my local "authorized Roland repair shop". They advised me that the bubble strips would not have to be replaced, just cleaned. For that they were going to charge me $45 an hour plus the cost of the chemicals. They said it would take 2-3 hours, so I'm looking at over $100 to have this taken care of. Plus the fact that I will have to drive my keyboard about 40 miles each direction 2X! There is a closer shop that only charges $35 an hour, but there not an authorized shop, and the guy I talked with just didn't seem too knowledgable about Rolands. So, maybe a little contact spray under keys isn't such a bad idea. If you try it, let me know! Jeff jwheeler@bigcat.missouri.edu ------------------------------ Date: Mon, 31 Jan 1994 14:44:35 LCL From: Max D'Ambrosio Subject: Session 8 Is there anybody out there that has one. I am presently thinking to buy a digital recorder for PC and the Session 8 seems to be, for the overall features, the way to go. I am open to any suggestions and maybe we can start a discussion on this dilemma. Thanks to all Max ------------------------------ Date: Sun, 2 Jan 1994 21:52:00 BST From: Wayne James-Steinert Subject: SP-12 / Atari Users? UPNEWS Hi, I'm looking for fellow Atari users to keep in touch with. Especially Falcon owners. I have an STf running Avalon & a Falcon running Cubase Audio Falcon. My music is pretty alternative. Also I need detailed MIDI implementation for the E-mu SP-12. I'm attempting a small utility for it and I know its implementation is a little 'different'. If this is the wrong way to handle such a post I'm sorry! Let me know... I'm new to this. Peace, Wayne - Sunday, January 02, 1994 - 13:53 p.m. PST w.james-stei@genie.geis.com ------------------------------ Date: Sun, 9 Jan 1994 20:36:09 -0600 From: Ken Fansler Subject: Re: WhatIsIt! Akai 612 professional. (fwd) >QUestion here: I read a long time ago that the 612 was basically an >Electro-Harmonix 16Second Delay that had been somewhat modified and >repackaged by AKAI. Can anyone confirm this? I don't know if I can confirm it, but I do *own* a working 612 and it's MD280 disk drive counterpart. I believe I even could dig up a manual somewhere. I don't use the thing anymore, so if anyone's interested, email me (off the listserve, please). Otherwise, post questions and I'll try to find answers in the manual for you. Now I've just got to find the manual... Ken Fansler kwfansle@ilstu.edu ------------------------------ End of the EMUSIC-L Digest ******************************