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Hi all! I've been a midibox dabbler for a few years now, but am looking to put the MBHP to work in a new project. So essentially what I'm building is an organ from scratch. I am building my own cabinet, and am using this organ project as a sound source. http://bolltone.de/Projekte/PropB3/PropB3_US.html I am using 2 of them, each with 17 midi CCs controlling the various parameters. In the style of old lowrey's and such I plan on putting a couple synthesizers inside of the organ as well with CC controls for some of their parameters. I like the look of the MIDIIO128 because it has a midi file player and can support up to 64 potentiometers (i'll be using all 64 inputs for drawbars and various pots for parameters) and lots of buttons. The keyboards I am using for each of the manuals are these mini 44 key casio keyboards in a 4x11 diode matrix. Is a diode matrix possible on a midiIO128? Is it possible to send each matrix to a different midi channel and change this in the menu? Ex Manual 1 on organ sounds on channel 1 and manual 2 on midi channel 2? What types of modules (DOUT, DIN) etc would be necessary to complete the project? My current requirements are: 64 Pots At least 88 key switches, ideally in a matrix to keep the number of wires down. I'd like to have some other buttons for changing the octave, midi channel etc. The ability to change channel for each manual. Sorry for all the questions but the newer midibox platforms have me a bit confused. thanks Nate

After over a year of development, I would like to start documenting my Midibox_NG project in this thread to collect as much information as possible for similar future projects. The idea is to keep all findings, questions and struggles concerning this projects in one thread to keep myself organised and to help future digital/analog synth developers. As the title predicts, the goal of this project is to design and develop an all in one box digitised analog synth, similar to the MiniMoog Voyager. The synth will be controlled solely over midi. An LPC17 with Midibox_NG running acts as the main brain to read digital pots and switches of the control panel, save and recall presets as well as to drive the synth through multiple analog and digital outputs. Analog synth hardware: 1x LFO 2x Modulation Bus 3x VCO incl. waveshapers as well as additional loops for other effects than the waveshapers (documented on: http://www.muffwiggler.com/forum/viewtopic.php?t=108794) 1x Noise generator 1x Ext_In 1x Mixer stage 1x 5Pulser (http://home.comcast.net/~ijfritz/sy_cir8.htm) 1x Ring modulator 1x Phaser effect 2x Moog ladder LP filter (to create a stereo effect through filter cutoff spacing) 1x Moog T904B HP filter (to create a band pass together with one of the LP filters (http://www.freeinfosociety.com/electronics/schemview.php?id=944) 2x ADSR (for filter and volume) 1x Stereo VCA 1x Headphone preamp 1x +/-15V & +5V switching power supply (I learned, that it is much easier to develop circuits with the additional "headroom" of +/-3V in comparison to a +/-12V supply) 1x Power board to generate +/-12V for the AOUT_NG modules as well as +10V clean reference voltage. Resources All the analog circuits are redesigned and relayouted to be uC controllable. They are mainly based on the following modules: - Ninni Bergfors' Moog based bergfotron modules (http://hem.bredband.net/bersyn/) - Original Moog D schematics (http://www.fantasyjackpalance.com/fjp/sound/synth/synthdata/16-moog-minimoog.html) - Original Micromoog schematics (http://www.fantasyjackpalance.com/fjp/sound/synth/synthdata/07-moog-micromoog.html) - Yves Usson's Yusynth (http://yusynth.net/Modular/index_en.html) - René Schmitz's modules (http://www.schmitzbits.de/) - Carsten Toensmann's Moog Modular Clone (http://www.analog-monster.de/mmschemos.html) - Vinnui's Modbus concept (http://vinnui.blogspot.ch/2011/09/concept-of-modulation-bus.html) The original idea was to use the Moog D schematics solely and as many original parts as possible. But after already acquiring many old parts for a reasonable amount of money, I dumped the idea when the last Chinese seller of UA726 remakes went off market. However, I don't regret the decision, as I am very happy with my results so far with more modern parts, which are not nearly as energy hungry as the old stuff. Midibox Hardware: 1x LPC17 core module 1x KS0108 based graphic LCD 1x SD card reader 1x AINSER64 module 1x DIO_MATRIX module 1x DOUT module (own design with partly high power shift registers for switching relays) 4x AOUT_NG modules Development Roadmap (fully implemented, partly done, not touched yet): - HARDWARE Power Board - HARDWARE Midibox modules (excl. DOUT) - HARDWARE VCO & waveshaper board (incl. trimming & tuning) - HARDWARE LP filter - HARDWARE HP filter & filter switching circuit - HARDWARE 5Pulser - HARDWARE Ring Modulator (on the breadboard and PCB layouted) - HARDWARE ADSR (PCB layouted) - HARDWARE DOUT module - HARDWARE control panel pots & switches - HARDWARE Mixer including overdrive LED circuit - HARDWARE VCA & headphone preamp - HARDWARE LFO, MOD BUS, Noise generator circuits and PCB - HARDWARE Casing - HARDWARE Phaser (planned as a seperate module, since not enough AOUTS available) - SOFTWARE Utilising AINSER64 and AOUT_NG at one port () - SOFTWARE Controlling multiple AOUT_NG modules at once () - SOFTWARE VCO octave switch option (thanks TK) - SOFTWARE Multiple rotary switches locking each other out (softwarebug ironed out, thanks again, TK) - SOFTWARE Controlling Digital switching ICs (binary input) by DOUTs (signal switching related topic) - SOFTWARE synth fine tuningrange (+/- 3 semitones, steps as fine as possible) -> solved in the analog section, without midibox assistance - SOFTWARE VCO detuning -> semitone detuning works, free detuning not implemented in MBNG) - SOFTWARE Midibox_NG menu structure -> initial work done - SOFTWARE Preset save and recall - SOFTWARE Midi control of parameters (excl. tone & pitch bend)

Hi, I have just acquired a stripped out rodgers organ + pedalboard which I would like to use for an organ midification project. I have been roaming this forum for about a month, trying to collect the information and wanted to ask if you could give me some advice and make me aware of caveats which I hadn't considered yet. The organ consists of: 2 x 61 key manuals: each in 4*16 diode matrix pedalboard: 2*16 diode matrix 43 stop tabs (SAMS) 31 piston switches 1 swell pedal I think I will need: Control module: LPC17 + LPCxpresso Manuals + pedalboard: DIO matrix board stop tabs + piston switches: 3 * DIN Module SAMS action: 3 * DOUT module (switching to the on state uses one channel, switching to the off state uses another: 2 * 43 channels, are the line drivers rated for enough current?) swell pedal/Pot: should be accomodated by core module Does this look about right? Does one core module support all this. What latency/conversion times would I have to expect. Re latency I read about the midibox kb project which is in development but I'm not sure if this is simply a firmware update or also different hardware or if it is applicable at all to what I want to do. I was thinking of using the manuals in a 16*16 matrix. With both manuals and pedalboard I am at the moment 10*16 but I want the option of extending by a manual in the future and I assume that it is not easily possible to scan in numbers which are not powers of two anyway. I wonder if you could also give me an indication of how much programming I would likely face (something I'm not worried about). In particular the SAMS might be tricky in that I need to control the two lines per channel via one midi signal. On an off-on trigger edge the on coil would need to get engaged for 100-200ms and on an on-off edge the off-coil. Does anyone have experience how easy it is to configure midi out in Hauptwerk anyway ... might be lost cause after all. I would really appreciate your feedback. thanks a lot!

Hello, I connected my brand new ainser module to the "mainboard" Midibox 128 v3 and did some testing: the jitter is 20. I suppose I have to inform the Midibox about the connect Ainser module by editing the default.mio. #AINSER;Pin;USB1;USB2;USB3;USB4;IN1;IN2;IN3;IN4;RES1;RES2;RES3;RES4;OSC1;OSC2;OSC3;OSC4;Evnt0;Evnt1 AINSER;0;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x10 AINSER;1;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x11 AINSER;2;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x12 AINSER;3;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x13 AINSER;4;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x14 AINSER;5;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x15 AINSER;6;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x16 AINSER;7;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x17 AINSER;8;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x18 AINSER;9;1;0;0;0;1;0;0;0;0;0;0;0;1;0;0;0;0xB0;0x19 Is that right? And how? The ainser64 faders are on channel 1 by default: can I change this? The volume goes in the opposite way: low volume is high and vice versa. Shall I "re-soldier" the 5V and 0V of the faders or is there a software solution? Is there a way to define e.g. 1200 = minimum volume and 3500 = maximum volume? Maybe I missed a documentation, but I cannot find it... Can I plug the pistons in the Diomatrix module? I know how to change the channel, but should I edit some more things in de default.mio or should I edit the pc software (eg pc organ / jorgan etc.) nice regards, Robert