mjproc Posted March 15, 2007 Report Share Posted March 15, 2007 HiDid a jam with a friend last night, with midibox seq, Creamware Noah, Cme5, Korg Elevtribe + a nn Guitar echo box -ish (and my not so rock solid laptop)Discovering that my cme5 only had 1 midi out, made it near impossible to sync all our stuff together (a guitar delay-loop box as clock master - with only midi out),,,, i had to use midiox on my laptop to get thing going...... I rather leave the instable stuff home (windows pc) I stumbeled over an interesting page regarding a midi router diy:http://m.bareille.free.fr/mpb3/mpb3.htmlI also found a thread in German: http://www.midibox.org/forum/index.php?topic=8400.msg58550#msg58550Now.... Have anyone here built the MPB3 or the Midibox Midi router ? How do the two compare?I still fawor the idea to build it myselves rahter that buing a M-Audio midi router / Moto, etc...Any thouhts out there?(I know the thread also excist in the German forum, .... I can read German,,, but not write well written German) Quote Link to comment Share on other sites More sharing options...
MTE Posted March 15, 2007 Report Share Posted March 15, 2007 HiI´ve builded the MPB3, but it dosnt fit my needs so my idea was to build a Midirouter 8x8 on MBHP-IIC-Basis.....DJ3nk has or will start the development in next time I think.Regards Quote Link to comment Share on other sites More sharing options...
mjproc Posted March 15, 2007 Author Report Share Posted March 15, 2007 So you mean the flexibility in mios, is better to "easily" modify the code to fit your needs? And the MPB3 is not that flexible (the MPB3 does what it is designed for, and is not easy to re-code for individual needs?) Quote Link to comment Share on other sites More sharing options...
dj3nk Posted March 15, 2007 Report Share Posted March 15, 2007 yeah :) first i need a few parts for 4x4 to get working. then ill build another 4 iic modules and look forward to change code.that non midibox router can just rout one of 8 ins to one out I think when reading.greetz Quote Link to comment Share on other sites More sharing options...
MTE Posted March 15, 2007 Report Share Posted March 15, 2007 that non midibox router can just rout one of 8 ins to one out I think when reading.wrongit routes 1 IN of 8 to 1 of 2 groups of 4 OUTs (V3.1) (LOL) or to all 8 (V3.2);)P.S.: oh Im Guru now (500th post) lol Senf Senf Senf... Quote Link to comment Share on other sites More sharing options...
dj3nk Posted March 15, 2007 Report Share Posted March 15, 2007 oh my Guru ^^ah, but thats neither better then mbhp router ^^ Quote Link to comment Share on other sites More sharing options...
MTE Posted March 15, 2007 Report Share Posted March 15, 2007 I´ve got a Motu Midiexpress 6x6 PC from Ebay for 2,59.- Euro :P so I think my Routing Problem is solved now. But this Patchbay operate with an ISA-card so I´ve builded an old 200mhz PC to control it. In 2 weeks I´ll see how this baby works with my new Studio-configuration when I got my new C2D :D *yehaaI mean to say I´m still interested to create a MBHP-Based 4x4 or 8x8 IIC-Router who do all the features like a midisport or something other do....But, no time yet, 1st I´ll finish my Edrum and the final Traktorizer. But when you do the starting-hole for this project and need help, spam me at ICQ ;D Quote Link to comment Share on other sites More sharing options...
napierzaza Posted March 17, 2007 Report Share Posted March 17, 2007 I'm trying to build that guy's ring modulator-> BUT HE WON'T SAY HOW TO MAKE IT! He gives a schematic but there's a switch that uses 5 wires in a certain config that he won't tell me unless I buy his kit! I can't believe it. Take a look at his board design, it's just mean.http://m.bareille.free.fr/modular1/warp633/warp633.htmhttp://m.bareille.free.fr/modular1/warp633/warp633_implant_b.jpg Quote Link to comment Share on other sites More sharing options...
stryd_one Posted March 17, 2007 Report Share Posted March 17, 2007 The WARP633 module compute the following simplified equations according to the mode switch position.Out = (X.Y).m+ZOut = (Y/X).m+ZX,Y = signal inputs carrier and modulation ( ac/dc ,10Vpp)m = gain factor - require one extra potentiometer (option)Z = input to add extern modulation/offset to the output (option) There are notes there such as the above for one example, which give a hint about how the switch works. You should consider that if he helps you out, he has to help everyone. He has to draw a line somewhere, before he would be spending too much time helping people out.If you spend some time looking at the schematic, and the schem it is based on (linked at the top) you can find out which parts of the circuit do what, and how the switch mixes them. Quote Link to comment Share on other sites More sharing options...
napierzaza Posted March 17, 2007 Report Share Posted March 17, 2007 I saw that and don't. Why not just a pinout? I don't need directions for the how to solder it to the switch. And clearly there are PCB designs somewhere, not just silouettes. These are purposeful obfuscations. Quote Link to comment Share on other sites More sharing options...
stryd_one Posted March 17, 2007 Report Share Posted March 17, 2007 Yeh I guess it does seem a bit strange... Maybe we're just spoiled in midibox land ;) Quote Link to comment Share on other sites More sharing options...
napierzaza Posted March 17, 2007 Report Share Posted March 17, 2007 I tried looking if I could figure the pinout from the photo but I can't, so I guess I lose, but I'm not paying 20 euros to find out. Quote Link to comment Share on other sites More sharing options...
TheAncientOne Posted March 20, 2007 Report Share Posted March 20, 2007 Well you could just build the Roman Sowa version at:http://www.sowa.synth.net/modular/rm.htmlI'll have ago myself and see if I can hack the divide switching, It's just a DPDT switch, but I'm not quite sure enough of my analysis to talk without testing. I note that in the changeover state the op-amp is left open loop as the switch goes over, which should make for an interesting noise! I have to jack it together and see.Marc Bareille's PCB's are quite good, and whilst not in the MIDIbox range of value, are still, in my opinion, quite good. Mike Quote Link to comment Share on other sites More sharing options...
napierzaza Posted March 20, 2007 Report Share Posted March 20, 2007 I'm not saying the product is not good, it's just that I can't afford it and the whole idea is to learn how to make them myself!!! I designed the PCB in Eagle and will be trying to etch it this week.I'm pretty certain the original Sawa version is just joining pin 1+2, not sure about the 3 others or how they join. Please let me know if you figure something out! I'm making the board no matter what anyhow. Quote Link to comment Share on other sites More sharing options...
TheAncientOne Posted March 21, 2007 Report Share Posted March 21, 2007 Ok, I've had another look at the diagram, and since I can't get any AD633's for 2 weeks, I'll let you have my 'best guess' at the wiring.The switch is a double pole, double throw toggle.Using Marc's circuit pin-outs, arrange it so that in multiplier mode, Pin 1 connects to pin 2, and pin 4 connects to pin 3. In divide mode, Pin 1 connects to pin 3 and pin 4 connects to pin 5. That's why there are only fives wires to six terminal on the switch. Looking at the back of a normal DPDT switch, (the "o's" rrepresenting switch pins), we would have:[tt] 2 o o 3 1 o o 4 3 o o 5[/tt]I can't guarantee that this is right, but I'm fairly certain.The data sheet at http://www.analog.com/UploadedFiles/Data_Sheets/AD633.pdf shows the divide circuit on page 5.Pretty cool doing you're own PCB's: I've never been too good at it.Hope this helpsMike Quote Link to comment Share on other sites More sharing options...
napierzaza Posted March 21, 2007 Report Share Posted March 21, 2007 Wow, that's awesome! Thanks very much, I'll try it out.Hey, I'm not so good at PCBs either, I just bought some random photo paper and have it soaking. I hope I do get good at this, because it's really empowering to be able to do this! Quote Link to comment Share on other sites More sharing options...
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