Questions re. MIDI control of a custom built analog synth

[analogfreak]

Dear MIDI gurus,

I have built an all voltage controlled analog synth (DIY, non commercial). Requirements:

- need to feed 24 control voltages -5V - +5V and 16 logic levels inputs (1 - 3 bits each)

- all shall be controlled from rot. encoders (with LEDs) and buttons, no PC involved

- patches to be stored/retrieved locally

- option, to retrieve, edit, store patches from a PC

I have peeked in this forum here and there. Questions:

- Who has built something similar using MIDIbox parts, so I could learn from that project?

- How many core modules to have? 1? 2? (1 to give the synth a MIDI interface, 1 to do the user interface?)

- Which controller events shall I use? When to use these NRPN ones over the non specified "ordinary" controllers?

- I seem to need AOUT or AOUT_NG modules. Who sells complete kits in EU? (Getting these DACs seems to be an issue and these boards seem to require prof. equipment)

Thank you for considering these questions.

[philetaylor]

Hi.

Have you looked in the wiki? The answers to most of your questions are in there but can be a bit hidden. There is a re-arrangement project in progress but it isn't a 5 minute job!

I would look in the User Projects section as there are various synth projects:

http://www.midibox.org/dokuwiki/doku.php?id=user_projects

For parts and kits, look in:

http://www.midibox.org/dokuwiki/doku.php?id=where_to_order_pre-made_printed_circuit_boards_pcbs_and_parts_kits

I have bought from both Mike and SmashTV. Both are really easy to deal with but with my latest boards I got them from SmashTV 'cause I like silk-screened PCB's  :) he is in the USA though so delivery costs can be a bit higher....

Cheers

Phil