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Found 8 results

  1. SSl Blog Post 02 Hello again, Last time I wrote about the design process of my console. In this post I want to focus on the electronic part. In the last couple of weeks I searched for the right knobs, faders and pots for the project and I nearly found all I need. The pots were the simplest part. I opted for the Alpha 10k Lin https://www.musikding.de/Alpha-Potentiometer-16mm-10k-lin Each channel will have one motorized fader. Here I choose the PSM01-082A-103B2. https://www.mouser.de/ProductDetail/bourns/psm01-082a-103b2/?qs=MAZTpT1IVl8rvdecO07rRA==&countrycode=DE&currencycode=EUR 14,76€ when I buy more than 25 is a good deal I think. The ones from alps are very pretty, but with prices over 30€ per piece they are quite expensive especially because I need 33. For the bus channels I opted for simple 60mm faders. Also 10k lin, not very investing. https://www.reichelt.de/schiebepotentiometer-stereo-10-kohm-linear-rs60n12-lin10k-p73870.html?&trstct=pol_1&nbc=1 The knobs where a little harder to find. For the Solo Cut and Rec knobs I want to have knobs with Leds which I can connect to an DOUT module separately. So I could press Solo on the console but deactivate it inside my DAW and the LED would follow my actions. After quite a bit of searching and some phone calls with distributors I finally found these. https://de.farnell.com/nidec-copal-electronics/cfpb-1cc-4w9/drucktaster-spst-0-005a-5vdc-panel/dp/3498758 The knobs inside the channel strip are still to be found. The need to be snapaction knobs with a white cap with the measurements of 5mm per side. I couldn’t finde the right ones even after quite some hours of searching. Maybe I’m just searching without the right search terms? Maybe someone of you knows the answer to that problem I didn’t start the search for LEDs just yet. I think and hope these should be easy to find. For the modules I chose STM32F4 for the cores, AINSER 64 for the pots and faders, NG MF for the motorfaders, DIN for the knobs and DOUT for the LEDs. I especially need quite a lot of AINSER modules and I’m still figuring out a way to connect more than two to an STM32F4. I found some blogposts but could get the answer out of these. They suggested it should be even possible to connect more than three? I obviously want to use as less cores as possible. This build will be huge either way. I can connect the MF modules directly to a pc without a pc. Thats what is written on the website. But how do I connect these to the pc? Via midi? There is no USB port on these modules right? And I also should cascade them. I need 5 modules. I want to use 33 motorized faders and that’s quite unfortunate because every mf module only supports 8. How do I cascade these modules? Also via MIDI? The last problem I ran into is the meter bridge. This could be a whole blogpost of its own… My plan was, or partly still is to use 10 7“ displays connected to a 10 times HDMI splitter, which tells the PC there is only one REALLY big screen. But after buying quite some displays to test out I figured out 90% of the screens for sale online are totally crap! Ok, I searched for quite cheep ones, but I need 10 of them and if I had unlimited money I would buy the original ORIGIN console… But I don’t have access to unlimited amounts of cash so I need a cheap display which works. The first one I ordered was the perfect size and easy to operate. But I only could see the image looking from one specific angle. Moving my head just a little bit the whole display would turn blue. The second one was advertised to be 7“, but the one that were delivered to my was only 3,5“…are you kidding me? Out of anger I searched for analog VU meters. I really like the looks of these and figured out these work with voltage. Is it possible to drive VU meters with a midibox module? Maybe with an AOUT module? So many more questions but I already wrote a whole book here…sorry for that. If you still reading in this point thank you very much! Have a nice day! Frederik
  2. Hello everyone! I'm a complete Newbie in the MIDIbox world, but the last weeks I'm trying to get as much information as possible. But for some questions I could not find an answer. I basically want to build a DAW controller consisting of 32 faders and a channelstrip for every channel. So I quickly use all 64 control possibilities of the AINSER64 module. I read there is a different module wich allows to use two AINSER64 parallel but this still is not enough. Is there a possibility to run multiple Core Modules like the CORE_LPC17 or the version working with two ainser64 (Sorry I could not find the right name) parallel? Or is there a different solution to my problem? I know this project is a little bit heavy specially for a beginner, but I think I can get help for the assembly - I just need to evaluate everything, if my project is even possible or not. Thank you all in advance! Looking forward to a new hobby I would like to turn this into! Greetings Meadow
  3. I've been slowly working on integrating analog controls into the lovely Goom port for the STM32F4 and hit a bit of a roadblock. The AINSer64 module won't initialize (no pulsing link light). I can get it to work only if I disable the last line of the following function. Commenting it out and returning 0, allows the AINSer64 to do its job, the link led pulses and turning knobs send debug messages with proper pin numbers and values. The Goom synth also works just fine without any of the AINSER code present. Currently the AINSER64 is setup on J19 / SPI 2. s32 SYNTH_Init(u32 mode) { // initialize the AINSER module(s) AINSER_Init(0); // start task xTaskCreate(TASK_Synth_Update, "SynthUpdate", configMINIMAL_STACK_SIZE, NULL, PRIORITY_TASK_SYNTH_UPDATE, NULL); xTaskCreate(TASK_AINSer_Scan, "AINSerScan", configMINIMAL_STACK_SIZE, NULL, PRIORITY_TASK_AINSER_SCAN, NULL); //use J10A.D0 for performance measurements MIOS32_BOARD_J10_PinInit(0, MIOS32_BOARD_PIN_MODE_OUTPUT_PP); // start I2S DMA transfers return MIOS32_I2S_Start((u32 *)&sample_buffer[0], SAMPLE_BUFFER_SIZE, &SYNTH_ReloadSampleBuffer); } I2S is enabled in the config file. I saw that it can conflict with the SRIO SPI, tried setting SRIO_SPI to 0, with no luck. I wasn't sure if that applied here or not. Have tried this same code with ReloadSampleBuffer as an empty function, with the same results. I'm assuming the issue is somewhere in the I2S_Start function, but reading through that I didn't notice any obvious issues. Other AINSer apps like MIDIO128 work fine. I did have issues with the Jitter Monitor though - it just scrolls endlessly, returning empty results for all modules. I haven't delved deeper into that since the module was returning results without any issues outside of trying to implement it in Goom. Any insight into what might be happening here? Thanks Jeff
  4. Hi !!! Why can not I use potentiometers over 10K? I noticed that the 50k (linear B) potentiometers connected on the ainser64 board do not send CC = 63 when it is midway (5V / 2 = 2.5V), but sends CC = 63 when it is just over halfway down (2.90 V) at the entrance of 4051. Sorry, my english. Tks, Marco
  5. 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)
  6. I'd like to buy an AINSER64 (maybe a couple of them) or AINSER8 boards or modules
  7. Hi, i'd like to have some help with my AINSER64 used in a MIDI128IO config : i've mounted the unit, 'shortcuted' several unused inputs. When i plug it to the core, the yellow and red lights light on. But the green 'link' one sometimes remains lit, or unlit. that seems to indicate a problem. In MIOS Studio, i see a bunch (i guess 64) of CCs going to 0 when i unplug the AINSER. Any idea of what i am doing wrong ? Thank you, louis
  8. Is this possible, or do I need to get another AINSER64 board? I'm building a keyboard controller. I have 1 AINSER64 with all the 64 inputs being used, can I chain a kb module to it? In other words, can I simply connect the J1 output from a kb module to the J2 input on my AINSER64 board?
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