From Steven.Collins@cs.tcd.ie Tue Jun 21 11:28:01 1994 Date: Tue, 21 Jun 1994 17:34:39 +0000 From: Steven Collins To: analogue@magnus.acs.ohio-state.edu Subject: Jupiter8 Groove Electronics retrofit details... Some people seem to have the Groove Electronics retro-fit for the Jupiter 8 but no manual (just like me). I spent a few hours a while back figuring out some of the controller assignments and stuff. This is not guaranteed to be correct and I'm well open to corrections but its a start. In my model you hit the 1 octave button of the arpeggio section to open up the MIDI menus. Then the following apply: 1 -> Receive channel (Select using the patch buttons) 2 -> Send channel (Select using the patch buttons) UP -> Enable controller input. DOWN -> ??? U&D -> OMNI/POLY (OFF=POLY) SOLO -> VCF Velocity respond. (ON/OFF) UNISON -> VCA Velocity respond. (ON/OFF) POLY1 -> ??? POLY2 -> ??? UPPER -> Set MIDI for upper channel LOWER -> Set MIDI for lower channel The LOAD/SAVE buttons can be used to initiate a sysex dump to a sequencer or librarian. I have verified this works using VISION and it seems OK. The MIDI board allows you to assign a controller and a range to each of the common controllers, AT (Aftertouch), PB (Pitch Bend), Ct (Mod Wheel), selected using the DUAL/SPLIT/WHOLE buttons. You can then hit one of the performance buttons to select a parameter and adjust its amount using the patch buttons. The performance letters correspond to: A -> VCO freq. LFO mod. amount B -> Pulse Width C -> Cross Mod. amount D -> Detune E -> Source Mix F -> Resonance level G -> LFO speed H -> VCF LFO amount Finally, the board responds to loads of controller messages. I think that all 256 controllers are actually supported. I got bored checking after figuring out the first 24, which covered most of what I wanted to do. Here are those ones: MIDI Controller Jupiter8 Parameter =============== ================== 0 ??? 1 (ModWheel) [Overridden by the Ct assignment above] 2 (Breath) VCO LFO amount 3 Cross Mod. Amount 4 (FootCont.) Pulse Width 5 (Portamento) Cross Mod. Amount 6 (Data) VCO1 Level (?) 7 (Volume) Mix 8 (Balance) VCF LF Cutoff Freq. 9 Resonance amount 10 (Pan) VCF LF Cutoff Freq. 11 ENV1 Sustain 12 ENV2 Sustain 13 LFO Speed 14 ??? 15 (FC1) VCF HP Cutoff Freq. 16 (General) VCF LFO amount 17 (General) VCF Keyboard Tracking amount 18 (General) VCA ENV amount 19 (General) ENV1 Attack 20 ENV1 Decay 21 ENV1 Release 22 ENV2 Attack 23 ENV2 Decay 24 ENV2 Release That's all I got. I'm sure all the parameters are mapped to a controller, in particular I was looking for a way to change the pitches of the VCOs independently but didn't quite get that far. I'll update this list when I have a chance to investigate further. Also, for some reason my board will NOT do decent pitch bend at all, no matter how the PB assignment is set. The best I get is a very slight drift on one of the VCOs to give a subtle detune. Not quite what I wanted. All updates to this are more than welcome. Does anybody know if there's a way to clock the arpeggiator from MIDI. I don't seem to be able to get it working and suspect its not part of the retrofit (and if not its a bloody major omission). Later, Steve | Steven Collins | Steven.Collins@cs.tcd.ie | To be is to do-Socrate | | Image Synthesis Group | Phone: +353-1-7021436 | To do is to be-Sartre | | Trinity College Dublin | Fax : +353-1-6772204 | Do be do be do-Sinatra | | http://vangogh.cs.tcd.ie/scollins/scollins.html | From analogue-request@magnus.acs.ohio-state.edu Wed Dec 15 11:35 GMT 1993 Received: from dub-fdev.dub.comm.mot.com by dub-tse.dub.comm.mot.com with SMTP (16.6/16.2) id AA11320; Wed, 15 Dec 93 11:35:30 GMT Return-Path: Received: from pobox.mot.com by dub-fdev.dub.comm.mot.com with SMTP (1.37.109.4/16.2) id AA14874; Wed, 15 Dec 93 11:38:06 GMT Received: from motgate.mot.com by pobox.mot.com with SMTP (5.67a/IDA-1.4.4/MOT-2.15 for ) id AA26030; Wed, 15 Dec 1993 05:38:42 -0600 Received: from quark.magnus.acs.ohio-state.edu by motgate.mot.com with SMTP (5.67a/IDA-1.4.4/MOT-2.15 for ) id AA22325; Wed, 15 Dec 1993 05:38:40 -0600 Received: from localhost by quark.magnus.acs.ohio-state.edu (8.6.4/3.910213) id LAA29229; Wed, 15 Dec 1993 11:30:42 GMT Errors-To: analogue-request@magnus.acs.ohio-state.edu Sender: analogue-request@magnus.acs.ohio-state.edu Received: from ashe by quark.magnus.acs.ohio-state.edu (8.6.4/3.910213) id GAA29225; Wed, 15 Dec 1993 06:30:39 -0500 Message-Id: <199312151130.GAA29225@quark.magnus.acs.ohio-state.edu> Received: from cs.tcd.ie by ashe.cs.tcd.ie id <05783-0@ashe.cs.tcd.ie>; Wed, 15 Dec 1993 11:30:11 +0000 To: analogue@magnus.acs.ohio-state.edu Subject: Jupiter8 fixed... thanks Pete Date: Wed, 15 Dec 1993 11:30:11 +0000 From: Steven Collins Status: RO Just a quick note to interested parties... Pete Cassidy has done an absolutely top-notch job on fixing up my recently acquired Jupiter8. I mentioned previously some overheating problems causing the oscs. to go wildly out of tune... well Pete installed a small fan (a little noisy wee bastard perhaps)... and now the large heat sink on the back hardly evens warms up. I've had the thing going for a couple of days, and haven't had to hit TUNE even once. Solid as a bloomin' rock mateys. EG2 for one of the oscillators was also completely kaput driving a continuous 14 volts to the filters, so that required a new chip (sourced by Denis 'the man' Barton, .. thanks Denis) which did the trick nicely. I'd imagine Pete will give a fuller description (I know he did lots more stuff), but suffice to say that I now have a fully functional Jupe8. This Jupiter has a retrofit from (the now defunct) Groove Electronics. I don't have a manual (anybody out there familiar with this retro), but so far I've been able to suss the following functionality: Note On/Off (of course) Velocity sensitive (the original keyboard isn't) from MIDI Send Channel 1-16 Recv. channel for both Upper and Lower (1-16) so its bitimbral fully Aftertouch sensitivity: at the moment it does some wild filter oscillations, but I think this is alterable but I can't figure it out yet... Mod wheel: modulates the pitch (natch) Bend Wheel: as normal Controller 7: modulates the filter LFO amount The retrofit works pretty well. Its a bit brain dead when it comes to triggering when playing live from MIDI but on playback from my sequencer it does just fine. Don't exactly know why that is at all... it may be a function of the quantise resolutions I use, but when playing directly over MIDI from a controller keyboard (the WS EX) it sometimes voice steals in a very odd way causing sounds to die quickly. Apart from this, is one hell of a funcional machine, MIDI wise, particularly with the bitimbrality. Having bought this machine, I'm more and more tending towards a completely analogue sound. The WaveStation is being used less and less. With the Jupe and my other analogs, there's a richness and a natural quality that I can't define, but means that the sounds are far more useable. If I'm looking for a particular type of lead or pad or whatever, I'm FAR more likely to find what I want on the Jupe rather than my Wavestation. I would now suggest to any sceptics of analogue to take a Jupiter 8 (or MKS equiv.) home and play and come back the next day and tell me about it. I did just that with an analogue sceptic last night... he's played with the Juno-106/6 and my Yamaha CS series, likes the bass from the Moog prodigy, but I let him loose on the Jupiter 8 last night hooked up to Vision, and by the end of the night he was on the verge of tears. Till then, he felt that his 01W (Korg) could do anything he wanted, but now realises that EVERY single one of his recording lacks the punch/power/evocativeness of a true analogue machine. Me... I think I want another 7 Jupiter 8s... Steve --- .............................................................................. : Steven Collins : Steven.Collins@cs.tcd.ie : : : Image Synthesis Group : Phone: +353-1-7021436 : $ Hello Worl% : : Trinity College Dublin : Fax : +353-1-6772204 : "Drat"! : :........................:...........................:.......................: