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About Rowan

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    MIDIbox Guru
  • Birthday January 01

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  1. MIDIbox SEQ V4 Release + Feedback

    +1 for this.  I would also like to sequence my 208r with my MB without having to use a 1V/Oct > 1.2V/Oct conversion device
  2. MIDIbox CV V2 Concept

    Problem solved. I had an incorrectly seated cable on J2 on the Line Driver Transmitter board. Everything is now working as expected. 
  3. MIDIbox CV V2 Concept

    I'm messing about this at them moment and have connected a few modules together to test things.  I have a STM32F4 core, MIDI IO & Line transmitter connected to a line reciver, AOUT_NG and DOUTX4. Im running Sneaktheifs complied firmware on the core. everthing apart from the DOUTX4 is working as expected. The gate output is always high/on. I know that the line reciver/AOUT_NG/DOUTX4 and DB25 cable part is working as I use it with my MBSEQ. Ive edited the MBCV hardware config file to match my hardware.  To test I'm using an ancient Casio Vz-1 midi out to test. The AOUT CV is tracking the midi notes fine.  I did a little research into the Midi implementation of the VZ-1 to discover that it does NOT send proper Note-Off messages, just the pesky Velocity=0 therefore not adhering 100% to official Midi spec.  Now here is the question, does the MBCV app rely of receiving Note-Off messages to turn the DOUT gates off? Knowing this will aid my trouble shooting as the problem may be with the controller and not the MB.
  4. mb6582s in brushed finish (buchla ish)

    In the same format that you currently do for the MB-SEQ panels, just a change of material. 
  5. mb6582s in brushed finish (buchla ish)

    Any chance of cutting a MB-SEQ set in with this material?
  6. WTB AOUT_ng PCB

    Hi Paul, I've got a stuffed and tested AOUT_NG that I'm willing to sell. Drop me a PM if you are interested. Cheers, Rowan
  7. Krell Patch

    I'm not one to push my music out to the world as its usual very bad but in this case Ill bare my soul as it think this is very good....... if you happen to like this type of noise    
  8. MIDIbox SEQ V4 Release + Feedback

    I've got a small feature request I'd like to make..... 1.2 Volt/octave output mode in addition to the existing 1 Volt/Octave and Volt/Hz modes. The standard used by Buchla modular gear is the non-standard 1.2 Volt/octave pitch scale.  Im in the process of building a Buchla 208 music easel clone and I'd like to be able to sequence it with my MB Seq 
  9. MIDIbox SEQ new frontpanel idea

    This is a great idea.  Ive got some of the cases Adrian has designed/made for Mutable Instrumens products and can vouch for the quality and value. Adrian already has a strong track record so should be taken seriously. 
  10. Chaining A DIN's after a DOUTX4

    The PCBs are pretty old. I got them from Smash about 10 years ago.  When I connect the BLM to J2 on the DOUTX4 the upstream DOUT shift registers work but the DIN shift registers aren't passing anything downstream. If I take the DOUTX4 out of the equation and connect the BLM directly to the Line reciver it works (I haven't set up the HW config correctly yet). I've got the TPD at the end of the chain. I need to get out a DMM and see if the SI pins on J1 and J2 are connected.  What I really should do is build the 16x16 BLM I got from you, that will solve the problem.
  11. Quick question here. i want to chain a DIN's after a DOUTX4 module and looking at the DOUTX4 schematic I'm thinking I may be able to solder a jumper between the SI pin of J1 and the SI pin of J2  to pass the DIN data back to the Core.... Any ideas if this will work? I'll explain what I'm trying to do.  I've got a MBSEQ (STM32F4 core) which connects to a AOUT NG and DOUTX4 via a MBHP Line Driver/Reciver, this works fine. I want to add a  16x4 BLM and TPD to this setup.
  12. @jaytee. Yes, I've seen the thread on Muffs and registered my interest. I already have a TTSH that I built about a year ago, it's by  far the best SDIY project I've done to date and is now my most used instrument. I'm going to build another one if the run happens and I have the funds available at the time as its a VERY expensive project to source all the parts for. It cost me well of £1000 at the time and I expect it would now be closer to £1300 due to the weak £ Vs $.
  13. [SOLVED] AOUT_NG module/kit/pcb

    I've got a finished and tested AOUT_NG I could trade. im not really interested in selling it, I would rather trade for interesting SDIY PCBs/Parts.
  14. While the TTSH was available in my view was hands down the best DIY synth but was discontinued a few months ago. You may be able to find someone selling the PCB/Panel set but expect to pay a heavy price for it. It was expensive when it was available but now when I have seen it come up for sale it's REALLY expensive.  Old Crow's crOw-BX looks good but I haven't built one so can't comment beyond that. The MIDIbox SID is really good and not too tricky to build, sounds good and different to most stuff that's commercially available. Mutable Instruments stuff is all very good, they no longer produce/sell DIY products but all of their products are open source so all the files are available to get PCBs made. Most of the really good DIY stuff now is in the Eurorack format. I ended up going down the eurorack route just because I built everything else I was interested in that wasn't eurorack.  The best resource online for DIY synth projects is the Music Tech DIY sub forum on Muff Wigglers, check that out if you haven't already. 
  15. AOUT + AIN + EURO

    The form factor of the DAC really shouldn't be a consideration in your design, the main concern should be accuracy. Choose a chip that offers the best accuracy then design around it. Number 8 wire theory at its best (@latigid on, I'm also a kiwi by birth;)