Guest ekopappa Posted August 22, 2007 Report Posted August 22, 2007 hi there,please don´t beat me up for this question, but i didn´t find an answer to it yet.it´s said everywhere, that a midibox lc needs its own midiport. but what would happen if two lc´s would be connected to one midiport with a midimerger. did anyone ever try this?would both lc´s act simultaneously? or wouldn´t they work at all?again, sorry, if this sounds stupid or anything, but that really concerns me.thanx a lotgreetingsjohn Quote
doc Posted August 23, 2007 Report Posted August 23, 2007 Hi,no stupid question ....I did this once to connect a Mackie Universal and and a midibox (Led-Vu-Meter).If you connect two LC , both would do exactly the same, thats right.I'm unsure, if a MIDImerger would be the right solution. In fact you would need a Midi-Merger for the Midi-In and a "splitter" (only one IC ...) for the Midi-Out.I don't understand, why you want this ... but it would work.greetsDoc Quote
Guest ekopappa Posted August 23, 2007 Report Posted August 23, 2007 thanks a lot, doc. you really made my day.i´m building a midibox lc at the moment, consisting of two lc´s. one is a full lc emulation and the other one only contains a master fader and a lcd for mtc and status message. but i´m a little short on midiports. so i thought, technically, both lc´s would fulfil different tasks and, if both lc´s would act the same way with a shared midi connection, they could be merged.what do you mean by "splitter"? do you mean that the second midi in of the merger (pin 26 with a pic16) should be connected the same way as the midi out, or the first midi in (pin 6)?again, thanks a lot.greetingsjohn Quote
doc Posted August 23, 2007 Report Posted August 23, 2007 what do you mean by "splitter"?I mean a circuit, that "splits" the midi signal in two seperate signals - better known as "Midi-Thru-box". The opposite of a merger ...There is also a circuit around here (based on the 74HC00) , but I designed another one.I'm a little short in time now, but I'll give you the circuit tomorrow, ok ?greetsDoc Quote
doc Posted August 23, 2007 Report Posted August 23, 2007 Ok. Heres the circuit for the midi-thru:http://www.docstudios.de/midibox/midi-thru.pdfI used this circuit often. Last time I used it to connect a midibox LC with a Mackie Control :DgreetsDoc Quote
Guest ekopappa Posted August 23, 2007 Report Posted August 23, 2007 thank you very much for this. it´s exactly, what i was looking for. i will definitly add this to my midibox.greetingsjohn Quote
DavidBanner Posted August 24, 2007 Report Posted August 24, 2007 now i am dying to know - why is this useful to you as opposed to using 2 midi channels??? Quote
doc Posted August 24, 2007 Report Posted August 24, 2007 now i am dying to know - why is this useful to you as opposed to using 2 midi channels???Each Midibox LC MUST have its own midi-Interface. He wants to connect two LC's (both doing the same) to only one host interface. Thats why he needs it.Two midi-channels wouldn't work.greetsDoc Quote
Guest ekopappa Posted August 24, 2007 Report Posted August 24, 2007 thanks, doc. that´s exactly the reason.i have a laptop with only two usb ports. one is reserved for the soundcard and the other one for a midi interface.besides, i have limited space at home for my music stuff and with an additional usb hub, a second interface and the required wires it would get pretty cramped at my desk :).greetingsjohn Quote
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