Jump to content

Rowan

Members
 View Profile  See their activity

  • Posts

    602

  • Joined

  • Last visited

  • Days Won

    5

 Content Type 

Posts posted by Rowan

  2. MIDIbox SEQ V4 Release + Feedback

    in MIDIbox SEQ

    Posted

    On 14/09/2019 at 8:58 PM, TK. said:

    -> http://www.ucapps.de/mios32/midibox_seq_v4_096_pre7.zip

    It would be great if everybody could help to test this new firmware version, regardless if the new CV features are used or not (I hope that nothing else is broken!)

    I've just had a chance to test this with 2 x AOUT_NG boards and I think I've came across a bug.

    The shift register that is assigned to CV_GATE_SR2  in the HWCONFIG file will only trigger once and then remains on. 

    I thought I had a hardware problem initially but after some trouble shooting I'm pretty confident its a software problem, either user error or a bug. The reason this is that I swapped the CV_GATE_SR assignment for SR1 and SR2 in the hardware and the problem is always present Shift Register assigned to CV_GATE_SR2.

    Both of the AOUT_NG boards are working correctly.

  3. Using AOUT with Buchla 1.2v/octave

    in Tips & Tricks

    Posted

    I finally got around to trying this out last night with an AOUT_NG and got it working. 

    After testing a few values I settled on 10k as the replacement values for R9-R16 and could achieve 1.2V/Oct tracking. 

    I suspect if the values was a little higher e.g. 12k, I would have been able to calibrate the module to 1V/Oct and 1.2V/Oct with the trimmers.

     

  5. Using AOUT with Buchla 1.2v/octave

    in Tips & Tricks

    Posted

    I’ve noticed that you are talking about the original AOUT module here.

    I would like to try this out with an AOUT_NG so I’ve tried to reverse engineer what you’ve done here to apply it to the AOUT_NG. I’m coming up a resistor value of 4.7k to replace the 15k resistor in the op-amp negative feedback loop to increase the max output voltage to 13.81V. I’ve based my calculations on Vref being set at 2.048V.

    Any thoughts on this?

  9. AOUT Alternative - Expert Sleepers Fader Host

    in MIDIbox SEQ

    Posted

    7 hours ago, Elektruck said:

    And did you manage to output midi synced clock signals? I recieved the module yesterday and it works perfect so far with my new SeqV4+ :) but I don't understand the lfo/clock part so far. Would be nice to get this fixed for newyears eve party...

    I’m please it worked for you.

    I haven’t had a chance to try and get the LFO/Clock working yet. The documentation is poor to say the least so I think it will require some experimentation but I think it should work. It seems the easiest way to configure the module is with the web based script editor. If you haven’t come across this yet it’s here.

    http://expert-sleepers.co.uk/webapps/fh1_script_generator.html

    i wish you luck for your party tonight and a happy new year.

  10. AOUT Alternative - Expert Sleepers Fader Host

    in MIDIbox SEQ

    Posted

    1 hour ago, Elektruck said:

    That sounds cool, I'll try to get my hands on one. For the clock signals I made a little module with a DOUT chained after my TPD module. That works great and using a CV ouput seems a bit of an overkill, but OK if you don't use the output for CV....thanks for sharing this idea about the FH-1!

    I Had a 4xDOUT connected to a Line Reciver that I have been using for clocks and gates, it worked well but I’m trying to get away from the Line Driver/Reciver method.

    I have been doing a bit more reading into how to get clock signals out of the FH-1 and the There seems to a solution that I’m yet to try. The FH-1 have An LFO avalible on each output that can be tempo synced, so the idea is to use a tempo synced square wave LFO as clock! Simple but effective. 

  11. AOUT Alternative - Expert Sleepers Fader Host

    in MIDIbox SEQ

    Posted

    5 hours ago, Elektruck said:

     

    I'm also very interested in this. I'm about to build a new SeqV4+ and this looks like a nice solution. I've build a breakout CV/gate module myself for the SeqV4 now, but without linedrivers, etc. I have my Aout board in my sequencer now, and I think I leave it there, so I need a new solution for the new sequencer. Looking forward to your tests!

    I spent more time messing about with it last night and I’m happy to report it’s working as expected with very little effort. The only thing I have tried yet that I’ll need is getting it to output clock signals. Other than that it’s working perfectly. It seems that it also accet modular clock signals and convert them to midi clock, very useful. 

  12. AOUT Alternative - Expert Sleepers Fader Host

    in MIDIbox SEQ

    Posted

    Something that has always bugged me about the line driver/liner receiver solution for CV/GATE outs on the MBSEQ is that there is no easy way of isolating the 5V supply that is feed down the DB25 cable. I've always had the other end of the DB25 cable connected to my Eurorack case that has a local 5V supply so (in principal) I don't need 5V going down the cable. 

    I needed a CV/GATE solution that isn't Line Driver/Receiver or DIN MIDI for my MBSEQ.

    Today I noticed that my local modular seller was selling Expert Sleeper FH-1 (now discontinued) for a great price (Disclamer: I work for their parent company so I know how much these things cost the reseller). I thought I'd bit the bullet and see if it would solve my problem.... guess what, it did!

     I'm not going to go into any details about the set-up yet as I'm in the early testing phase but right now I've connected the USB B port from my MBSEQ to the FH-1 and all is peachy! I can control my eurorack from my MBSEQ without any fuss.

    Once I've spent more time configuring the system I'll elaborate more as the Expert Sleepers FH-1's capabilities are very deep (up to 64 CV/GATE  outputs). 

  13. Using a 16x4 BLM, TPD and Aout_NG together

    in MIDIbox SEQ

    Posted

    I've tested all the parts individually and everything works correctly. 

    SEQ>Tx>Rx>DOUTX4 Works

    SEQ>Tx>Rx>BLM>TPD Works

    i'll spend some time in n it over the course of the next week and see if I have any further success. What I do need to do is interrupt the 5v power supply that is sent over the db25 cable and power the BLM & TPD with a local PSU. All these modules are drawing too much current from the SEQ causing the LCD displays to have virtually  no contrast.

    PM me adopt the LEDs, I might take you up on them. I've got the buttons and all the parts for the core. The LEDs might be enough to push me over the edge and buy the rest of the components.

     

  15. Using a 16x4 BLM, TPD and Aout_NG together

    in MIDIbox SEQ

    Posted

    So I'm trying to use a 16X4 BLM and TPD with an AOUT_NG and having trouble getting the buttons and encoder working on the BLM and TPD

    I think I have my HW config file set-up correctly. 

    The way it's set up is a bit complicated so I'll explain that first. The modules are connected as follows. (I've omitted the AOUT_NG as it's working)

    Core>Wilba's FP>Line Driver Transmitter>Line Driver Reciver>DOUTX4>Line Driver Transmitter>Line Driver Reciver>16x4 BLM>TPD

    All of the LEDs and 7 segment displays work as they should, it's just the DIN side of things that isn't working. 

    Having read the documentation for the Line Transmitter it would seem that I need to connect pin 10 of the last 74HC165 on the front panel PCB to J2:SI on the first Line Transmitter PCB. Is this correct and if so does anyone know which IC on Wilba's PCB is the last 74HC165 in the chain?

  16. MIDIbox SEQ V4 Release + Feedback

    in MIDIbox SEQ

    Posted

    On 22/06/2018 at 10:53 PM, TK. said:

     

    @beautyofdecay_ I added an experimental AOUT calibration feature:

      

    
   o V4+ AOUT: support for AOUT channel calibration.
     In the CV configuration menu, turn GP ENC #7 until 0V/1V/2V/.../Max will be visible.
     Calibrate the offset of the target value with ENC #8.
     Each V has a dedicated calibration value which can be configured this way, the output will be interpolated accordingly.
     Note that with exiting the CV configuration menu the calibration values are stored on SD Card in the MBSEQ_GC.V4 file
     (-> CV_Cali <cv-counting-from-0>).
     You could backup/set/restore the values from there if required.
     To reset all calibration values: delete all CV_Cali items in MBSEQ_GC.V4, store the file and enter "reset" in MIOS terminal.

    Please try this version: http://www.ucapps.de/mios32/midibox_seq_v4_095_pre13.zip

    Does it work at your side?

    Best Regards, Thorsten.

    I just tried this out and in worked extremely well, I've now got sub mV accuracy.

  17. MIDIbox SEQ V4 Release + Feedback

    in MIDIbox SEQ

    Posted

    On 17/05/2018 at 11:04 AM, beautyofdecay_ said:

    Would be nice to be able to select 1.2V/oct in the CV configuration menu.

    This is useful for connecting to Buchla modular gear.

     

    +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

  19. MIDIbox CV V2 Concept

    in MIDIfication

    Posted

    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.

  23. Krell Patch

    in Songs & Sounds

    Posted · Edited by Rowan

    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

     

     

  24. MIDIbox SEQ V4 Release + Feedback

    in MIDIbox SEQ

    Posted · Edited by Rowan

    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 

  25. MIDIbox SEQ new frontpanel idea

    in MIDIbox SEQ

    Posted

    11 hours ago, AdrianH said:

    Hi guys,

     

    hope I'm not late into party.

    Really nice upgrade project and I would be more then happy to help to design a case for this beast.

    Tbh I always wanted to make a case for MidiBox project.

    Will dig more into details in upcoming week and shoot some questions and suggestions. 

    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. 

×
×
  • Create New...